SGP/MET/E11 - Missing data due to hardware problem

No data available during this period due to a hardware/communication issue.

• qc_wdir_vec_std
• qc_wspd_arith_mean
• Wind direction vector mean(wdir_vec_mean)
• time
• North latitude(lat)
• qc_vapor_pressure_mean
• Atmospheric pressure(atmos_pressure)
• Wind speed vector mean(wspd_vec_mean)
• qc_temp_mean
• qc_wdir_vec_mean
• wdir_vec_std
• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• Altitude above mean sea level(alt)
• time_offset
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• tbrg_precip_total
• qc_atmos_pressure
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• qc_tbrg_precip_total_corr
• qc_rh_mean
• qc_time
• East longitude(lon)
• qc_tbrg_precip_total
• Vapor pressure mean, calculated(vapor_pressure_mean)
• Temperature mean(temp_mean)
• base_time
• qc_wspd_vec_mean

SGP/MET/E11 - Collection problem caused missing data

A data collection problem caused periods of missing data for the times indicated. Between 
3/16 and 3/23, there are short instances of active data, but these values should be used 
with discretion.

• qc_wdir_vec_std
• qc_wspd_arith_mean
• Wind direction vector mean(wdir_vec_mean)
• time
• North latitude(lat)
• qc_vapor_pressure_mean
• Atmospheric pressure(atmos_pressure)
• Wind speed vector mean(wspd_vec_mean)
• qc_temp_mean
• qc_wdir_vec_mean
• wdir_vec_std
• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• Altitude above mean sea level(alt)
• time_offset
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• tbrg_precip_total
• qc_atmos_pressure
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• qc_tbrg_precip_total_corr
• qc_rh_mean
• qc_time
• East longitude(lon)
• qc_tbrg_precip_total
• Vapor pressure mean, calculated(vapor_pressure_mean)
• Temperature mean(temp_mean)
• base_time
• qc_wspd_vec_mean

ENA/AOS/C1 - AOS Instrument Repair, Calibration and Modification: Mentor Site Visit

There was visit of 7 AOS instrument mentors to the ENA AOS during this period of 
instrument repair, calibration and modification. Instruments were occasionally off, or with no 
sample flow, or receiving calibration samples, etc. There was no productive sampling of 
ambient air during this period other than for testing. No data should be used for this period 
as ambient samples.

Note: Two datastream are missing. The CAPS Extinction Monitor and the Greenhouse gas 
instrument.

• Ambient pressure(P_Ambient)
• Rain Duration(rain_duration)
• Ambient air relative humidity(RH_Ambient)
• Rain intensity(rain_intensity)
• Wind speed(WindSpeed)
• Wind direction, relative to true North(WindDirection)
• ref_volts
• Ambient air temperature(T_Ambient)
• heater_volts
• supply_volts
• heater_temp
• Rain amount(rain_amount)

ENA/AOSMET/C1 - Instrument

Instrument experienced periodic dropouts.  These were apparent on all channels.  The RH 
sensor went off scale.  During these periods there are no valid points for Air Temperature, 
RH or BP. RH should be considered uncalibrated until this date.  Changing the sensor at 
the end of this period fixed the problem.

• Ambient pressure(P_Ambient)
• Rain Duration(rain_duration)
• Ambient air relative humidity(RH_Ambient)
• Rain intensity(rain_intensity)
• Wind speed(WindSpeed)
• Wind direction, relative to true North(WindDirection)
• Ambient air temperature(T_Ambient)
• Rain amount(rain_amount)

ENA/AOSMET/C1 - Collection software turned off

Instrument vi was turned off for unknown causes perhaps due to debugging of problem 
described in D150513.3.

• Ambient pressure(P_Ambient)
• Rain Duration(rain_duration)
• Ambient air relative humidity(RH_Ambient)
• time
• Rain intensity(rain_intensity)
• Altitude above mean sea level(alt)
• Wind direction, relative to true North(WindDirection)
• heater_volts
• Ambient air temperature(T_Ambient)
• Rain amount(rain_amount)
• time_offset
• East longitude(lon)
• North latitude(lat)
• Wind speed(WindSpeed)
• base_time
• ref_volts
• supply_volts
• heater_temp

ENA/MET/C1 - Optical rain gauge false precipitation

Routine cleaning caused incorrect precipitation to be recorded by the optical rain gauge.

• ORG precipitation rate mean(org_precip_rate_mean)

ENA/MET/C1 - Present weather detector false 1 minute visibility

One minute visibility values are suspected to be false during the indicated times due to 
routine cleaning.

• PWD 1 minute mean visibility(pwd_mean_vis_1min)

SGP/DISDROMETER/C1 - Communication failure

A communication failure halted data collection over this period of time.  The problem was 
resolved on July 8, 2015 but the proper functioning of the device was not confirmed until 
the rain event of July 16, 2015.

• drop_class
• radar_reflectivity
• Precipitation(precip_dis)
• distribution_slope
• distribution_intercept
• mean_diam_drop_class
• Rainfall rate(rain_rate)
• diam_max
• number_density
• delta_diam
• liq_water
• num_drop
• fall_velocity
• energy_flux

NSA/MET/C1 - CMH offline

Moisture inside the power cable caused the instrument to go offline. The cable was 
replaced and data prior to the instrument self-check should not be used.

• cmh_dew_point
• cmh_temp
• cmh_vapor_pressure
• cmh_rh
• cmh_sat_vapor_pressure

MAO/MET/M1 - Relative Humidity and Vapor Pressure Data Spikes

Relative humidity and vapor pressure values occasionally spike during times of high 
humidity

• Vapor pressure mean, calculated(vapor_pressure_mean)
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)

OLI/MET/M1 - Noisy (and missing) CMH data

The chilled mirror hygrometer data became noisy after self-checks during this period. Data 
are missing between 10/16 and 10/21 for service and calibration checks. The instrument 
was returned to service following calibration checks and minor connection repairs.

• cmh_temp
• cmh_rh
• cmh_sat_vapor_pressure
• cmh_dew_point
• cmh_vapor_pressure

OLI/MET/M1 - Chilled mirror hygrometer data spikes due to generator maintenance

During this time, the chilled mirror hygrometer data spiked due to power generator 
maintenance.

• cmh_temp
• cmh_rh
• cmh_sat_vapor_pressure
• cmh_dew_point
• cmh_vapor_pressure

OLI/MET/M1 - Wind data missing following generator maintenance

Following generator maintenance, the wind sensor stopped reporting wind data. 
Communication was reestablished following a configuration check.

• wdir_vec_std
• Wind speed vector mean(wspd_vec_mean)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Wind direction vector mean(wdir_vec_mean)

OLI/MET/M1 - Present weather detector backscatter warning

During this time, the present weather detector intermittently indicated a backscatter 
warning. A routine lens cleaning eliminated the backscatter. Data do not appear to be 
affected.

• PWD 1 minute mean precipitation rate(pwd_precip_rate_mean_1min)
• PWD 10 minute mean visibility(pwd_mean_vis_10min)
• PWD 1 minute mean visibility(pwd_mean_vis_1min)
• pwd_err_code
• pwd_cumul_snow
• pwd_cumul_rain
• pwd_pw_code_inst
• pwd_pw_code_1hr
• pwd_pw_code_15min

SGP ALL INSTRUMENTS - Icing Event

An icing event (winter storm Cara) passed slowly through the area during this time frame.  
Instruments at the SGP may have been affected by ice accumulation.

• wdir_vec_std
• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• Temperature mean(temp_mean)
• Vapor pressure mean, calculated(vapor_pressure_mean)
• Wind direction vector mean(wdir_vec_mean)
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• Wind speed vector mean(wspd_vec_mean)
• tbrg_precip_total
• Atmospheric pressure(atmos_pressure)
• Wind speed, lower, 1-min avg(wspd_arith_mean)

• Wind speed vector mean(wspd_vec_mean)
• wdir_vec_std
• Wind direction vector mean(wdir_vec_mean)
• Temperature mean(temp_mean)
• Atmospheric pressure(atmos_pressure)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• tbrg_precip_total
• Vapor pressure mean, calculated(vapor_pressure_mean)
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)

• wdir_vec_std
• Wind direction vector mean(wdir_vec_mean)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• Temperature mean(temp_mean)
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• Wind speed vector mean(wspd_vec_mean)
• Vapor pressure mean, calculated(vapor_pressure_mean)
• tbrg_precip_total
• Atmospheric pressure(atmos_pressure)

• Wind speed vector mean(wspd_vec_mean)
• Wind direction vector mean(wdir_vec_mean)
• Atmospheric pressure(atmos_pressure)
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• wdir_vec_std
• Vapor pressure mean, calculated(vapor_pressure_mean)
• Temperature mean(temp_mean)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• tbrg_precip_total
• TBRG precipitation total, corrected(tbrg_precip_total_corr)

• Temperature mean(temp_mean)
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• Wind speed vector mean(wspd_vec_mean)
• Vapor pressure mean, calculated(vapor_pressure_mean)
• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• Atmospheric pressure(atmos_pressure)
• Wind direction vector mean(wdir_vec_mean)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• tbrg_precip_total
• wdir_vec_std

• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• Wind direction vector mean(wdir_vec_mean)
• Temperature mean(temp_mean)
• tbrg_precip_total
• wdir_vec_std
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Atmospheric pressure(atmos_pressure)
• Wind speed vector mean(wspd_vec_mean)
• Vapor pressure mean, calculated(vapor_pressure_mean)
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)

• Vapor pressure mean, calculated(vapor_pressure_mean)
• wdir_vec_std
• Atmospheric pressure(atmos_pressure)
• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• Temperature mean(temp_mean)
• Wind direction vector mean(wdir_vec_mean)
• Wind speed vector mean(wspd_vec_mean)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• tbrg_precip_total

• Temperature mean(temp_mean)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• Atmospheric pressure(atmos_pressure)
• tbrg_precip_total
• Wind direction vector mean(wdir_vec_mean)
• wdir_vec_std
• Vapor pressure mean, calculated(vapor_pressure_mean)
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• Wind speed vector mean(wspd_vec_mean)

• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• Wind speed vector mean(wspd_vec_mean)
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• Wind direction vector mean(wdir_vec_mean)
• Temperature mean(temp_mean)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• tbrg_precip_total
• Vapor pressure mean, calculated(vapor_pressure_mean)
• Atmospheric pressure(atmos_pressure)
• wdir_vec_std

• Vapor pressure mean, calculated(vapor_pressure_mean)
• Wind speed vector mean(wspd_vec_mean)
• Wind direction vector mean(wdir_vec_mean)
• tbrg_precip_total
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• Atmospheric pressure(atmos_pressure)
• wdir_vec_std
• Temperature mean(temp_mean)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• TBRG precipitation total, corrected(tbrg_precip_total_corr)

• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Wind direction vector mean(wdir_vec_mean)
• wdir_vec_std
• tbrg_precip_total
• Temperature mean(temp_mean)
• Wind speed vector mean(wspd_vec_mean)
• Atmospheric pressure(atmos_pressure)
• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• Vapor pressure mean, calculated(vapor_pressure_mean)

• PWD 10 minute mean visibility(pwd_mean_vis_10min)
• pwd_cumul_rain
• Temperature mean(temp_mean)
• PWD 1 minute mean visibility(pwd_mean_vis_1min)
• temp_std
• pwd_pw_code_15min
• Wind direction vector mean(wdir_vec_mean)
• Vapor pressure mean, calculated(vapor_pressure_mean)
• vapor_pressure_std
• pwd_cumul_snow
• tbrg_precip_total
• Atmospheric pressure(atmos_pressure)
• rh_std
• logger_volt
• PWD 1 minute mean precipitation rate(pwd_precip_rate_mean_1min)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Wind speed vector mean(wspd_vec_mean)
• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• logger_temp
• pwd_pw_code_1hr
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• pwd_err_code
• pwd_pw_code_inst
• wdir_vec_std

• Wind direction vector mean(wdir_vec_mean)
• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• Temperature mean(temp_mean)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• tbrg_precip_total
• Atmospheric pressure(atmos_pressure)
• Wind speed vector mean(wspd_vec_mean)
• wdir_vec_std
• Vapor pressure mean, calculated(vapor_pressure_mean)

SGP/MET/E32 - Abnormal Drop in Data

For unknown reasons, the temperature and vapor pressure abnormally dip down when compared 
to the co-located EBBR.

• Temperature mean(temp_mean)
• Vapor pressure mean, calculated(vapor_pressure_mean)

OLI/MET/M1 - Intermittent wind data loss

Occasionally the wind speed data are missing and wind direction data drop to 0 due to an 
ongoing sensor circuitry problem. Only invalid data are missing.

• wdir_vec_std
• Wind speed vector mean(wspd_vec_mean)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Wind direction vector mean(wdir_vec_mean)

SGP/MET/E40 - Suspect RH and vapor pressure values due to sensor failure

A sensor failure caused suspect relative humidity and vapor pressure values during this 
time. Data are often above maximum threshold.

• vapor_pressure_std
• Vapor pressure mean, calculated(vapor_pressure_mean)
• rh_std
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)

SGP /E39/E40 - Icing Event

An icing event (winter storm Cara) passed slowly through the area during this
time frame.  Instruments at the SGP may have been affected by ice accumulation.

• Atmospheric pressure(atmos_pressure)
• rh_std
• tbrg_precip_total
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• Wind direction vector mean(wdir_vec_mean)
• vapor_pressure_std
• Temperature mean(temp_mean)
• Vapor pressure mean, calculated(vapor_pressure_mean)
• temp_std
• logger_volt
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• wdir_vec_std
• Wind speed vector mean(wspd_vec_mean)
• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• logger_temp

• logger_temp
• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• rh_std
• logger_volt
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• Vapor pressure mean, calculated(vapor_pressure_mean)
• tbrg_precip_total
• vapor_pressure_std
• wdir_vec_std
• Wind speed vector mean(wspd_vec_mean)
• Wind direction vector mean(wdir_vec_mean)
• Temperature mean(temp_mean)
• Atmospheric pressure(atmos_pressure)
• temp_std
• Wind speed, lower, 1-min avg(wspd_arith_mean)

SGP/MET/E13 - Data suspect due to system power issues

Issues with power supply to the system caused outages and suspect data during this time.

• PWD 1 minute mean visibility(pwd_mean_vis_1min)
• PWD 10 minute mean visibility(pwd_mean_vis_10min)
• pwd_cumul_rain
• Vapor pressure mean, calculated(vapor_pressure_mean)
• logger_temp
• temp_std
• vapor_pressure_std
• PWD 1 minute mean precipitation rate(pwd_precip_rate_mean_1min)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• pwd_pw_code_15min
• tbrg_precip_total
• pwd_pw_code_1hr
• pwd_pw_code_inst
• Atmospheric pressure(atmos_pressure)
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• Temperature mean(temp_mean)
• wdir_vec_std
• Wind speed vector mean(wspd_vec_mean)
• pwd_cumul_snow
• Wind direction vector mean(wdir_vec_mean)
• rh_std
• logger_volt
• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• pwd_err_code

SGP/MET/E38 - Data lost or incorrect due to bad data logger

Data are mostly missing during this period due to a hardware failure. Any data that are 
available during this period should be considered suspect.

• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• Wind direction vector mean(wdir_vec_mean)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Wind speed vector mean(wspd_vec_mean)
• tbrg_precip_total
• wdir_vec_std
• Atmospheric pressure(atmos_pressure)
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• Vapor pressure mean, calculated(vapor_pressure_mean)
• Temperature mean(temp_mean)

SGP Site Power Outage Due to Winter Storm

On Saturday and Sunday, December 26 and 27th a powerful winter storm (Goliath) brought 
sleet and freezing rain to much of Oklahoma with wind gusts of 45 MPH at times. The result 
was very very slick roads and mass power outages.
 
The SGP central facility lost power at 8:55 PM CDT on Sunday, December 27th.  
The power was restored on 7:56 PM CDT on Wednesday, December 30th
 
Site Emergency procedures were activated and Technicians drained water out of instrument 
reservoirs and other measures as needed, early Monday morning.
 
On Wednesdays as roads and power started was restored to much of the areas east of I-35 , 
Site Technicians performed maintenance on several Extended Facilities.

During this period, data are potentially missing, incorrect, or suspect.  Carefully 
inspect the data before use.

• qc_wspd_vec_mean
• qc_rh_mean
• Wind speed vector mean(wspd_vec_mean)
• tbrg_precip_total
• qc_atmos_pressure
• wdir_vec_std
• qc_temp_mean
• base_time
• qc_wspd_arith_mean
• qc_tbrg_precip_total
• North latitude(lat)
• Altitude above mean sea level(alt)
• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• Temperature mean(temp_mean)
• Wind direction vector mean(wdir_vec_mean)
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• qc_wdir_vec_std
• qc_time
• Atmospheric pressure(atmos_pressure)
• qc_wdir_vec_mean
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• time_offset
• East longitude(lon)
• time
• Vapor pressure mean, calculated(vapor_pressure_mean)
• qc_vapor_pressure_mean
• qc_tbrg_precip_total_corr

• time_offset
• qc_rh_mean
• qc_logger_temp
• Wind direction vector mean(wdir_vec_mean)
• vapor_pressure_std
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• qc_tbrg_precip_total
• qc_wdir_vec_mean
• qc_vapor_pressure_mean
• qc_temp_mean
• North latitude(lat)
• qc_atmos_pressure
• qc_logger_volt
• time
• Altitude above mean sea level(alt)
• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• temp_std
• tbrg_precip_total
• qc_wspd_arith_mean
• logger_volt
• qc_wspd_vec_mean
• Wind speed vector mean(wspd_vec_mean)
• East longitude(lon)
• wdir_vec_std
• logger_temp
• Atmospheric pressure(atmos_pressure)
• rh_std
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• qc_tbrg_precip_total_corr
• base_time
• Temperature mean(temp_mean)
• Vapor pressure mean, calculated(vapor_pressure_mean)

• time
• qc_wdir_vec_std
• Wind speed vector mean(wspd_vec_mean)
• wdir_vec_std
• qc_wspd_arith_mean
• North latitude(lat)
• Temperature mean(temp_mean)
• qc_temp_mean
• Atmospheric pressure(atmos_pressure)
• tbrg_precip_total
• Vapor pressure mean, calculated(vapor_pressure_mean)
• qc_wdir_vec_mean
• qc_tbrg_precip_total_corr
• qc_wspd_vec_mean
• Altitude above mean sea level(alt)
• base_time
• Wind direction vector mean(wdir_vec_mean)
• qc_time
• qc_tbrg_precip_total
• qc_atmos_pressure
• qc_rh_mean
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• East longitude(lon)
• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• time_offset
• qc_vapor_pressure_mean

• qc_wdir_vec_mean
• time_offset
• qc_tbrg_precip_total
• Atmospheric pressure(atmos_pressure)
• qc_vapor_pressure_mean
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• qc_wspd_arith_mean
• North latitude(lat)
• Temperature mean(temp_mean)
• wdir_vec_std
• qc_wspd_vec_mean
• Wind direction vector mean(wdir_vec_mean)
• qc_temp_mean
• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• qc_wdir_vec_std
• base_time
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• qc_atmos_pressure
• qc_rh_mean
• Wind speed vector mean(wspd_vec_mean)
• tbrg_precip_total
• qc_tbrg_precip_total_corr
• qc_time
• Altitude above mean sea level(alt)
• time
• East longitude(lon)
• Vapor pressure mean, calculated(vapor_pressure_mean)

• Vapor pressure mean, calculated(vapor_pressure_mean)
• qc_wdir_vec_std
• qc_rh_mean
• qc_tbrg_precip_total
• Altitude above mean sea level(alt)
• base_time
• qc_vapor_pressure_mean
• time_offset
• tbrg_precip_total
• wdir_vec_std
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• qc_time
• qc_wspd_arith_mean
• Atmospheric pressure(atmos_pressure)
• qc_wspd_vec_mean
• time
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• East longitude(lon)
• qc_atmos_pressure
• qc_wdir_vec_mean
• North latitude(lat)
• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• Wind direction vector mean(wdir_vec_mean)
• Temperature mean(temp_mean)
• Wind speed vector mean(wspd_vec_mean)
• qc_temp_mean
• qc_tbrg_precip_total_corr

• time_offset
• qc_wdir_vec_mean
• North latitude(lat)
• Atmospheric pressure(atmos_pressure)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• wdir_vec_std
• Altitude above mean sea level(alt)
• Wind speed vector mean(wspd_vec_mean)
• qc_tbrg_precip_total
• base_time
• qc_time
• qc_wspd_arith_mean
• Temperature mean(temp_mean)
• qc_tbrg_precip_total_corr
• qc_wdir_vec_std
• time
• Vapor pressure mean, calculated(vapor_pressure_mean)
• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• Wind direction vector mean(wdir_vec_mean)
• East longitude(lon)
• qc_rh_mean
• qc_vapor_pressure_mean
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• qc_atmos_pressure
• qc_temp_mean
• tbrg_precip_total
• qc_wspd_vec_mean

• wdir_vec_std
• Atmospheric pressure(atmos_pressure)
• qc_tbrg_precip_total
• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• qc_wdir_vec_mean
• qc_wspd_vec_mean
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• North latitude(lat)
• Vapor pressure mean, calculated(vapor_pressure_mean)
• qc_wspd_arith_mean
• Altitude above mean sea level(alt)
• qc_tbrg_precip_total_corr
• qc_rh_mean
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• Wind speed vector mean(wspd_vec_mean)
• qc_atmos_pressure
• base_time
• qc_vapor_pressure_mean
• East longitude(lon)
• time_offset
• Temperature mean(temp_mean)
• Wind direction vector mean(wdir_vec_mean)
• qc_wdir_vec_std
• qc_temp_mean
• time
• qc_time
• tbrg_precip_total

• qc_vapor_pressure_mean
• qc_tbrg_precip_total
• wdir_vec_std
• time_offset
• qc_wspd_vec_mean
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• time
• Wind speed vector mean(wspd_vec_mean)
• Temperature mean(temp_mean)
• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• Wind direction vector mean(wdir_vec_mean)
• qc_tbrg_precip_total_corr
• qc_rh_mean
• Vapor pressure mean, calculated(vapor_pressure_mean)
• North latitude(lat)
• qc_temp_mean
• qc_wdir_vec_std
• qc_wspd_arith_mean
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• tbrg_precip_total
• qc_atmos_pressure
• base_time
• Altitude above mean sea level(alt)
• qc_time
• Atmospheric pressure(atmos_pressure)
• East longitude(lon)
• qc_wdir_vec_mean

• qc_tbrg_precip_total
• qc_wdir_vec_std
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• qc_vapor_pressure_mean
• qc_time
• qc_wdir_vec_mean
• Atmospheric pressure(atmos_pressure)
• Altitude above mean sea level(alt)
• wdir_vec_std
• East longitude(lon)
• Wind speed vector mean(wspd_vec_mean)
• qc_tbrg_precip_total_corr
• qc_wspd_vec_mean
• base_time
• time_offset
• Wind direction vector mean(wdir_vec_mean)
• qc_atmos_pressure
• tbrg_precip_total
• Vapor pressure mean, calculated(vapor_pressure_mean)
• qc_temp_mean
• time
• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• qc_wspd_arith_mean
• Temperature mean(temp_mean)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• North latitude(lat)
• qc_rh_mean

• radar_reflectivity
• drop_class
• liq_water
• time_offset
• East longitude(lon)
• distribution_intercept
• distribution_slope
• North latitude(lat)
• time
• Rainfall rate(rain_rate)
• energy_flux
• number_density
• mean_diam_drop_class
• fall_velocity
• Altitude above mean sea level(alt)
• base_time
• num_drop
• Precipitation(precip_dis)
• delta_diam
• diam_max

• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• North latitude(lat)
• time
• qc_wspd_arith_mean
• qc_tbrg_precip_total_corr
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• base_time
• qc_wdir_vec_std
• Atmospheric pressure(atmos_pressure)
• wdir_vec_std
• Vapor pressure mean, calculated(vapor_pressure_mean)
• qc_wdir_vec_mean
• time_offset
• qc_time
• East longitude(lon)
• Wind direction vector mean(wdir_vec_mean)
• qc_vapor_pressure_mean
• qc_tbrg_precip_total
• qc_temp_mean
• Altitude above mean sea level(alt)
• Wind speed vector mean(wspd_vec_mean)
• tbrg_precip_total
• qc_atmos_pressure
• Temperature mean(temp_mean)
• qc_wspd_vec_mean
• qc_rh_mean
• TBRG precipitation total, corrected(tbrg_precip_total_corr)

• qc_vapor_pressure_mean
• qc_wdir_vec_mean
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• qc_temp_mean
• wdir_vec_std
• qc_tbrg_precip_total_corr
• qc_rh_mean
• Temperature mean(temp_mean)
• base_time
• qc_wspd_arith_mean
• Wind speed vector mean(wspd_vec_mean)
• East longitude(lon)
• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• qc_wspd_vec_mean
• time_offset
• qc_wdir_vec_std
• Wind direction vector mean(wdir_vec_mean)
• qc_atmos_pressure
• time
• qc_time
• qc_tbrg_precip_total
• North latitude(lat)
• Atmospheric pressure(atmos_pressure)
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• tbrg_precip_total
• Altitude above mean sea level(alt)
• Vapor pressure mean, calculated(vapor_pressure_mean)

• PWD 1 minute mean visibility(pwd_mean_vis_1min)
• Wind direction vector mean(wdir_vec_mean)
• Altitude above mean sea level(alt)
• Atmospheric pressure(atmos_pressure)
• PWD 1 minute mean precipitation rate(pwd_precip_rate_mean_1min)
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• qc_atmos_pressure
• time
• PWD 10 minute mean visibility(pwd_mean_vis_10min)
• temp_std
• qc_rh_mean
• Vapor pressure mean, calculated(vapor_pressure_mean)
• qc_pwd_precip_rate_mean_1min
• North latitude(lat)
• qc_pwd_cumul_snow
• tbrg_precip_total
• qc_wdir_vec_std
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• pwd_pw_code_inst
• wdir_vec_std
• pwd_cumul_rain
• Temperature mean(temp_mean)
• pwd_pw_code_15min
• qc_tbrg_precip_total_corr
• qc_logger_temp
• vapor_pressure_std
• qc_vapor_pressure_mean
• base_time
• qc_wspd_arith_mean
• rh_std
• logger_volt
• qc_logger_volt
• qc_temp_mean
• qc_pwd_mean_vis_10min
• qc_pwd_mean_vis_1min
• Wind speed vector mean(wspd_vec_mean)
• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• pwd_pw_code_1hr
• qc_wspd_vec_mean
• time_offset
• qc_pwd_cumul_rain
• qc_pwd_pw_code_15min
• qc_pwd_pw_code_1hr
• pwd_cumul_snow
• qc_tbrg_precip_total
• qc_time
• logger_temp
• qc_wdir_vec_mean
• pwd_err_code
• East longitude(lon)
• qc_pwd_pw_code_inst

• Wind direction vector mean(wdir_vec_mean)
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• qc_time
• North latitude(lat)
• tbrg_precip_total
• Atmospheric pressure(atmos_pressure)
• Altitude above mean sea level(alt)
• base_time
• qc_tbrg_precip_total
• qc_atmos_pressure
• qc_wspd_arith_mean
• time
• qc_wdir_vec_std
• Temperature mean(temp_mean)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• wdir_vec_std
• Vapor pressure mean, calculated(vapor_pressure_mean)
• qc_rh_mean
• qc_temp_mean
• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• qc_wspd_vec_mean
• qc_vapor_pressure_mean
• Wind speed vector mean(wspd_vec_mean)
• East longitude(lon)
• qc_wdir_vec_mean
• time_offset
• qc_tbrg_precip_total_corr

• qc_tbrg_precip_total
• qc_vapor_pressure_mean
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• logger_temp
• qc_wspd_arith_mean
• qc_tbrg_precip_total_corr
• Wind direction vector mean(wdir_vec_mean)
• base_time
• East longitude(lon)
• qc_rh_mean
• qc_logger_temp
• Temperature mean(temp_mean)
• Altitude above mean sea level(alt)
• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• rh_std
• qc_atmos_pressure
• tbrg_precip_total
• Wind speed vector mean(wspd_vec_mean)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• qc_logger_volt
• qc_temp_mean
• qc_wspd_vec_mean
• qc_wdir_vec_mean
• Vapor pressure mean, calculated(vapor_pressure_mean)
• time
• temp_std
• logger_volt
• vapor_pressure_std
• Atmospheric pressure(atmos_pressure)
• North latitude(lat)
• time_offset
• wdir_vec_std

AWR/MET/M1 - PWD Sensor Not Installed

The PWD was not connected during this period.

• pwd_cumul_rain
• PWD 1 minute mean precipitation rate(pwd_precip_rate_mean_1min)
• pwd_pw_code_15min
• pwd_err_code
• PWD 1 minute mean visibility(pwd_mean_vis_1min)
• PWD 10 minute mean visibility(pwd_mean_vis_10min)
• pwd_pw_code_inst
• pwd_pw_code_1hr
• pwd_cumul_snow

AWR/MET/M1 - Temperature, RH, Vapor Pressure Incorrect

Temperature and vapor pressure were missing and the RH was flatlined below 0.

• vapor_pressure_std
• rh_std
• Temperature mean(temp_mean)
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• Vapor pressure mean, calculated(vapor_pressure_mean)
• temp_std

AWR/MET/M1 - PWD Incorrect

The PWD was reporting errors during the setup period and was reporting large amounts of 
precipitation.

• pwd_cumul_rain
• PWD 1 minute mean precipitation rate(pwd_precip_rate_mean_1min)
• pwd_pw_code_15min
• pwd_err_code
• PWD 1 minute mean visibility(pwd_mean_vis_1min)
• PWD 10 minute mean visibility(pwd_mean_vis_10min)
• pwd_pw_code_inst
• pwd_pw_code_1hr
• pwd_cumul_snow

SGP/IRT/MET/MFRSR/SIRS/SWATS/E32 - Power out for an extended period after a winter storm

• wdir_vec_std
• Wind direction vector mean(wdir_vec_mean)
• qc_wspd_vec_mean
• qc_time
• tbrg_precip_total
• qc_vapor_pressure_mean
• Atmospheric pressure(atmos_pressure)
• qc_tbrg_precip_total_corr
• qc_temp_mean
• qc_atmos_pressure
• qc_wspd_arith_mean
• North latitude(lat)
• Temperature mean(temp_mean)
• time_offset
• qc_rh_mean
• qc_wdir_vec_mean
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• Wind speed vector mean(wspd_vec_mean)
• qc_wdir_vec_std
• base_time
• East longitude(lon)
• Altitude above mean sea level(alt)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• time
• qc_tbrg_precip_total
• Vapor pressure mean, calculated(vapor_pressure_mean)
• TBRG precipitation total, corrected(tbrg_precip_total_corr)

SGP/MET/E11 - Missing Data

The site computer went down following an ice storm that caused a power outage.  The met 
data was missing for an extended period.

• qc_wdir_vec_std
• qc_wspd_arith_mean
• Wind direction vector mean(wdir_vec_mean)
• time
• North latitude(lat)
• qc_vapor_pressure_mean
• Atmospheric pressure(atmos_pressure)
• Wind speed vector mean(wspd_vec_mean)
• qc_temp_mean
• qc_wdir_vec_mean
• wdir_vec_std
• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• Altitude above mean sea level(alt)
• time_offset
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• tbrg_precip_total
• qc_atmos_pressure
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• qc_tbrg_precip_total_corr
• qc_rh_mean
• qc_time
• East longitude(lon)
• qc_tbrg_precip_total
• Vapor pressure mean, calculated(vapor_pressure_mean)
• Temperature mean(temp_mean)
• base_time
• qc_wspd_vec_mean

ENA/MET/C1 - Ventilator maintenance

Data are incorrect during this time due to ventilator maintenance.

• Vapor pressure mean, calculated(vapor_pressure_mean)
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• vapor_pressure_std
• rh_std
• Temperature mean(temp_mean)
• temp_std

AWR/AOSMET/M1 -  Reprocessed and Corrected: Wind direction offset by 19 degrees

DATA REPROCESSED and CORRECTED: 

The wind direction sensor was not installed to true north. GPS calculation confirmed the 
wind direction was off by 19 degrees, in the positive. The AOSMET data were reprocessed to 
correct the wind direction.

The data were archived in September 2016. Please retrieve the reprocessed data for use in 
your analysis.

You may find these data using the ARM Discovery tool at the following link:
http://www.archive.arm.gov/discovery/#v/results/s/finst::aosmet/fsite::awr/ffac::awr.M1

ORIGINAL DQR CATEGORY: Red( Incorrect)

REPROCESSED and CORRECTED DATA ARCHIVED:2016-09

REPROCESS IDENTIFICATION NUMBER: RID 1431

---------------------------------------------------
--- ORIGINAL DQR DESCRIPTION ---
---------------------------------------------------

The wind direction sensor was not installed to true north. GPS calculation confirmed the 
wind direction was off by 19 degrees, in the positive. The sensor was aligned to true 
north on 2015-12-23. Prior data will be reprocessed by subtracting 19 degrees from wind 
direction.

• Wind direction, relative to true North(WindDirection)

ENA/AOSMET/C1 - Missing wind speed and direction data

Wind speed and direction data are intermittently missing during this time. The sensor was 
replaced.

• Wind speed(WindSpeed)
• Wind direction, relative to true North(WindDirection)

AWR/LDIS/MET/S1 - Precipitation Measurements Suspect

Analysis of the PARS2 and the PWD precipitation data indicate that the results are 
suspect, possibly due to frost/blowing snow.  Both instruments reported precipitation for a 
majority of the days.

The TSI movies were reviewed and the days of noticeable precipitation are:

12/26/15
12/31/15 - Potentially just frost buildup
1/6/16
1/11/16
1/12/16
1/13/16

• PWD 1 minute mean precipitation rate(pwd_precip_rate_mean_1min)
• pwd_cumul_snow
• pwd_pw_code_15min
• pwd_cumul_rain
• PWD 1 minute mean visibility(pwd_mean_vis_1min)
• pwd_pw_code_inst
• pwd_pw_code_1hr
• pwd_err_code
• PWD 10 minute mean visibility(pwd_mean_vis_10min)

SGP/MET/E35 - False tips in high winds

The TBRG's were mounted at a height that made them prone to vibrations caused by high 
winds which may have caused false tips.  The end date of this DQR indicates when the rain 
gauge was lowered to mitigate these effects.  

Effects on the total precipitation amounts are assumed to be negligible.

• tbrg_precip_total
• TBRG precipitation total, corrected(tbrg_precip_total_corr)

SGP/MET/E36 - False tips in high winds

The TBRG's were mounted at a height that made them prone to vibrations caused by high 
winds which may have caused false tips.  The end date of this DQR indicates when the rain 
gauge was lowered to mitigate these effects.  

Effects on the total precipitation amounts are assumed to be negligible.

• tbrg_precip_total
• TBRG precipitation total, corrected(tbrg_precip_total_corr)

SGP/MET/E37 - False tips in high winds

The TBRG's were mounted at a height that made them prone to vibrations caused by high 
winds which may have caused false tips.  The end date of this DQR indicates when the rain 
gauge was lowered to mitigate these effects.  

Effects on the total precipitation amounts are assumed to be negligible.

• tbrg_precip_total
• TBRG precipitation total, corrected(tbrg_precip_total_corr)

SGP/MET/E38 - False tips in high winds

The TBRG's were mounted at a height that made them prone to vibrations caused by high 
winds which may have caused false tips.  The end date of this DQR indicates when the rain 
gauge was lowered to mitigate these effects.  

Effects on the total precipitation amounts are assumed to be negligible.

• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• tbrg_precip_total

SGP/MET/E39 - False tips in high winds

The TBRG's were mounted at a height that made them prone to vibrations caused by high 
winds which may have caused false tips.  The end date of this DQR indicates when the rain 
gauge was lowered to mitigate these effects.  

Effects on the total precipitation amounts are assumed to be negligible.

• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• tbrg_precip_total

SGP/MET/E40 - False tips in high winds

The TBRG's were mounted at a height that made them prone to vibrations caused by high 
winds which may have caused false tips.  The end date of this DQR indicates when the rain 
gauge was lowered to mitigate these effects.  

Effects on the total precipitation amounts are assumed to be negligible.

• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• tbrg_precip_total

SGP/MET/E9 - False tips in high winds

The TBRG's were mounted at a height that made them prone to vibrations caused by high 
winds which may have caused false tips.  The end date of this DQR indicates when the rain 
gauge was lowered to mitigate these effects.  

Effects on the total precipitation amounts are assumed to be negligible.

• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• tbrg_precip_total

SGP/MET/E11 - False tips in high winds

The TBRG's were mounted at a height that made them prone to vibrations caused by high 
winds which may have caused false tips.  The end date of this DQR indicates when the rain 
gauge was lowered to mitigate these effects.  

Effects on the total precipitation amounts are assumed to be negligible.

• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• tbrg_precip_total

SGP/MET/E13 - False tips in high winds

The TBRG's were mounted at a height that made them prone to vibrations caused by high 
winds which may have caused false tips.  The end date of this DQR indicates when the rain 
gauge was lowered to mitigate these effects.  

Effects on the total precipitation amounts are assumed to be negligible.

• tbrg_precip_total
• TBRG precipitation total, corrected(tbrg_precip_total_corr)

SGP/MET/E15 - False tips in high winds

The TBRG's were mounted at a height that made them prone to vibrations caused by high 
winds which may have caused false tips.  The end date of this DQR indicates when the rain 
gauge was lowered to mitigate these effects.  

Effects on the total precipitation amounts are assumed to be negligible.

• tbrg_precip_total
• TBRG precipitation total, corrected(tbrg_precip_total_corr)

SGP/MET/E31 - False tips in high winds

The TBRG's were mounted at a height that made them prone to vibrations caused by high 
winds which may have caused false tips.  The end date of this DQR indicates when the rain 
gauge was lowered to mitigate these effects.  

Effects on the total precipitation amounts are assumed to be negligible.

• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• tbrg_precip_total

SGP/MET/E32 - False tips in high winds

The TBRG's were mounted at a height that made them prone to vibrations caused by high 
winds which may have caused false tips.  The end date of this DQR indicates when the rain 
gauge was lowered to mitigate these effects.  

Effects on the total precipitation amounts are assumed to be negligible.

• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• tbrg_precip_total

SGP/MET/E33 - False tips in high winds

The TBRG's were mounted at a height that made them prone to vibrations caused by high 
winds which may have caused false tips.  The end date of this DQR indicates when the rain 
gauge was lowered to mitigate these effects.  

Effects on the total precipitation amounts are assumed to be negligible.

• tbrg_precip_total
• TBRG precipitation total, corrected(tbrg_precip_total_corr)

SGP/MET/E34 - False tips in high winds

The TBRG's were mounted at a height that made them prone to vibrations caused by high 
winds which may have caused false tips.  The end date of this DQR indicates when the rain 
gauge was lowered to mitigate these effects.  

Effects on the total precipitation amounts are assumed to be negligible.

• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• tbrg_precip_total

ENA/MET/C1 -  Reprocessed and Corrected: Wind direction off by 180 degrees

DATA REPROCESSED and CORRECTED: 

The wind sensor was not aligned correctly. Wind directions during this time are off by 180 
degrees. The raw data were modified and the data were run through the ingest to address 
the issue.

The data were Archived in July 2016. Please retrieve the reprocessed data for use in your 
analysis.

You may find these data using the ARM Discovery tool at the following link:
http://www.archive.arm.gov/discovery/#v/results/s/finst::met/fsite::ena/ffac::ena.C1 

ORIGINAL DQR CATEGORY: Red( Incorrect)

REPROCESSED and CORRECTED DATA ARCHIVED:2016-07

REPROCESS IDENTIFICATION NUMBER: RID 1424

---------------------------------------------------
--- ORIGINAL DQR DESCRIPTION ---
---------------------------------------------------

The wind sensor was not aligned correctly. Wind directions during this time are off by 180 
degrees.

• Wind direction vector mean(wdir_vec_mean)

ENA/AOSMET/C1 - Reprocessed and Corrected: Wind direction off by 80 degrees

DATA REPROCESSED and CORRECTED: 
An offset was loaded in the configuration settings of the wind sensor, so the wind 
direction was off by +80 degrees. The raw data were modified and were run through the ingest to 
correct the addressed issue. 

The reprocessed data were Archived in July 2016. Please retrieve the reprocessed data for 
use in your analysis.

You may find these data using the ARM Discovery tool at the following link:
http://www.archive.arm.gov/discovery/#v/results/s/finst::aos/fsite::ena/ffac::ena.C1 

ORIGINAL DQR CATEGORY: Red( Incorrect)

REPROCESSED and CORRECTED DATA ARCHIVED:2016-07

REPROCESS IDENTIFICATION NUMBER: RID 1425

---------------------------------------------------
--- ORIGINAL DQR DESCRIPTION ---
---------------------------------------------------

An unintentional offset was loaded in the configuration settings of the wind sensor. Wind 
direction during this time is off by +80 degrees

• Wind direction, relative to true North(WindDirection)

SGP - Data System Upgrades: Data Missing

The data system was undergoing upgrades.  Data were lost during this period.

• drop_class
• qc_num_drop
• radar_reflectivity
• distribution_intercept
• distribution_slope
• mean_diam_drop_class
• diam_max
• delta_diam
• base_time
• liq_water
• qc_rain_rate
• time
• num_drop
• fall_velocity
• North latitude(lat)
• East longitude(lon)
• Precipitation(precip_dis)
• qc_precip_dis
• time_offset
• Rainfall rate(rain_rate)
• number_density
• qc_time
• Altitude above mean sea level(alt)
• energy_flux

AWR/AOSMET/M1 - Installation period

During this installation period, there were problems with the data messages being sent 
from the sensor. Some data are missing, and available data experience occasional dropouts.

• Ambient air temperature(T_Ambient)
• heater_temp
• ref_volts
• Wind direction, relative to true North(WindDirection)
• Ambient pressure(P_Ambient)
• heater_volts
• Rain amount(rain_amount)
• Wind speed(WindSpeed)
• Ambient air relative humidity(RH_Ambient)
• Rain Duration(rain_duration)
• Rain intensity(rain_intensity)

SGP/MET/E39 - Data logger failure

Data are missing during this time due to a failed data logger.

• logger_temp
• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• qc_vapor_pressure_mean
• rh_std
• qc_atmos_pressure
• qc_wspd_arith_mean
• logger_volt
• qc_wdir_vec_mean
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• Vapor pressure mean, calculated(vapor_pressure_mean)
• qc_logger_volt
• tbrg_precip_total
• base_time
• qc_tbrg_precip_total_corr
• vapor_pressure_std
• time
• East longitude(lon)
• wdir_vec_std
• Wind speed vector mean(wspd_vec_mean)
• qc_temp_mean
• North latitude(lat)
• qc_rh_mean
• Wind direction vector mean(wdir_vec_mean)
• qc_logger_temp
• Temperature mean(temp_mean)
• qc_tbrg_precip_total
• Altitude above mean sea level(alt)
• Atmospheric pressure(atmos_pressure)
• qc_wspd_vec_mean
• temp_std
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• time_offset

ENA/MET/C1 - Optical rain gauge precipitation test

Precipitation recorded by the optical rain gauge during this time is incorrect. Response 
to precipitation was being tested.

• ORG precipitation rate mean(org_precip_rate_mean)

SGP/MET/E33 - Power failure

All data are missing during this time due to a power and battery failure.

• rh_std
• vapor_pressure_std
• qc_wspd_vec_mean
• qc_tbrg_precip_total
• qc_time
• time
• qc_tbrg_precip_total_corr
• qc_vapor_pressure_mean
• Vapor pressure mean, calculated(vapor_pressure_mean)
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• qc_wspd_arith_mean
• Atmospheric pressure(atmos_pressure)
• time_offset
• qc_logger_volt
• Wind direction vector mean(wdir_vec_mean)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• East longitude(lon)
• Wind speed vector mean(wspd_vec_mean)
• base_time
• qc_temp_mean
• tbrg_precip_total
• qc_logger_temp
• Altitude above mean sea level(alt)
• qc_wdir_vec_mean
• qc_wdir_vec_std
• North latitude(lat)
• Temperature mean(temp_mean)
• logger_temp
• wdir_vec_std
• logger_volt
• qc_atmos_pressure
• qc_rh_mean
• temp_std

ENA/MET/C1 - Optical rain gauge error

During these times the optical rain gauge malfunctioned and recorded invalid 
precipitation. Sensor was replaced.

• ORG precipitation rate mean(org_precip_rate_mean)

SGP/MET/E37 - Data missing due to power interruption.

Power interruption due to site maintenance caused missing data during this time. The 
battery backup appears to have failed.

• Atmospheric pressure(atmos_pressure)
• Wind direction vector mean(wdir_vec_mean)
• Wind speed vector mean(wspd_vec_mean)
• Vapor pressure mean, calculated(vapor_pressure_mean)
• qc_wspd_vec_mean
• qc_rh_mean
• rh_std
• Temperature mean(temp_mean)
• vapor_pressure_std
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• base_time
• qc_logger_temp
• logger_volt
• logger_temp
• qc_tbrg_precip_total
• qc_atmos_pressure
• tbrg_precip_total
• time_offset
• qc_wdir_vec_std
• qc_wdir_vec_mean
• qc_logger_volt
• qc_temp_mean
• wdir_vec_std
• qc_vapor_pressure_mean
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• qc_time
• time
• East longitude(lon)
• qc_wspd_arith_mean
• temp_std
• North latitude(lat)
• Altitude above mean sea level(alt)
• qc_tbrg_precip_total_corr
• TBRG precipitation total, corrected(tbrg_precip_total_corr)

SGP/MET/E9 - Wind sensor malfunction

Loose wire contacts and possible bad bearings caused intermittent wind data dropouts 
during this time.

• Wind speed vector mean(wspd_vec_mean)
• Wind direction vector mean(wdir_vec_mean)
• wdir_vec_std
• Wind speed, lower, 1-min avg(wspd_arith_mean)

SGP/MET/E32 - Power outage

A power outage at the site caused missing data during this time period.

• wdir_vec_std
• vapor_pressure_std
• Wind direction vector mean(wdir_vec_mean)
• logger_volt
• qc_wspd_vec_mean
• rh_std
• qc_time
• temp_std
• tbrg_precip_total
• Atmospheric pressure(atmos_pressure)
• qc_vapor_pressure_mean
• logger_temp
• qc_tbrg_precip_total_corr
• qc_temp_mean
• qc_atmos_pressure
• qc_wspd_arith_mean
• qc_logger_temp
• North latitude(lat)
• time_offset
• Temperature mean(temp_mean)
• qc_rh_mean
• qc_wdir_vec_mean
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• Wind speed vector mean(wspd_vec_mean)
• qc_wdir_vec_std
• base_time
• East longitude(lon)
• Altitude above mean sea level(alt)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• time
• qc_tbrg_precip_total
• Vapor pressure mean, calculated(vapor_pressure_mean)
• qc_logger_volt
• TBRG precipitation total, corrected(tbrg_precip_total_corr)

AWR/AOSMET/M1 - Poor sensitivity to snow

The sensor plate that detects precipitation impact is not sensitive enough to detect snow 
(especially light snow). During the AWR deployment, all precipitation measurements from 
the AOSMETM1 data streams should be carefully considered and compared with colocated 
precipitation measurements.

• Rain amount(rain_amount)
• Rain Duration(rain_duration)
• Rain intensity(rain_intensity)

SGP/DISDROMETER/C1 - Incorrect zero values reported

The instrument reports all zeros for the last 2/3 of each hour.

• radar_reflectivity
• Precipitation(precip_dis)
• distribution_slope
• distribution_intercept
• Rainfall rate(rain_rate)
• diam_max
• number_density
• liq_water
• num_drop
• energy_flux

ENA/C1 - Reprocess: Slightly incorrect location fields

Some of the instruments are being processed with the previous "GRW-Azores" lat/lon/alt 
instead of the new "ENA-Azores" lat/lon/alt. The differences are minor, but will be 
corrected. The respective GRW and ENA lat, lon, and alt values are as follows:
 
GRW  lat = 39.0911 ;
ENA lat = 39.0916 ;
GRW  lon = -28.0297 ;
ENA  lon = -28.0257 ;
GRW  alt = 26 ;
ENA  alt = 30.48 ;

• Altitude above mean sea level(alt)
• North latitude(lat)
• East longitude(lon)

AWR/MET/M1  - Missing or suspect PWD data due to heavy snow

Heavy snow interfered with the instrument lenses causing backscatter and missing data. 
Data from the present weather detector during this time is suspect or missing.

• pwd_cumul_rain
• PWD 1 minute mean precipitation rate(pwd_precip_rate_mean_1min)
• pwd_pw_code_15min
• PWD 1 minute mean visibility(pwd_mean_vis_1min)
• PWD 10 minute mean visibility(pwd_mean_vis_10min)
• pwd_pw_code_inst
• pwd_pw_code_1hr
• pwd_cumul_snow

SGP/MET/E38 - Incorrect Data

Data are incorrect for an unknown reason during this short time frame.

• logger_volt
• rh_std
• temp_std
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• logger_temp
• Vapor pressure mean, calculated(vapor_pressure_mean)
• Temperature mean(temp_mean)
• vapor_pressure_std

SGP/MET/E34 - Probable thunderstorm interference

Data from the temperature and relative humidity sensor is incorrect during this time. A 
strong thunderstorm passed through the area and likely caused interference.

• Vapor pressure mean, calculated(vapor_pressure_mean)
• temp_std
• vapor_pressure_std
• rh_std
• Temperature mean(temp_mean)
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)

AWR/AOSMET/M1 - Icing event

Significant icing was noted during this time. For most of the period, wind data are 
missing due to ice buildup on the sensor. Available data for temperature, humidity, pressure, 
precipitation, and winds during this time should not be used.

• Ambient air temperature(T_Ambient)
• Wind direction, relative to true North(WindDirection)
• Ambient pressure(P_Ambient)
• Rain amount(rain_amount)
• Wind speed(WindSpeed)
• Ambient air relative humidity(RH_Ambient)
• Rain Duration(rain_duration)
• Rain intensity(rain_intensity)

AWR/MET/M1 - Probable instrument icing

The temperature and relative humidity sensor behaved suspiciously during this time. 
Temperature and relative humidity readings did not trend inversely, as expected. Ice buildup on 
the instrument is the probable cause.

• Temperature mean(temp_mean)
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• Vapor pressure mean, calculated(vapor_pressure_mean)

OLI/MET/M1 - Tower maintenance

Scheduled tower maintenance caused incorrect or missing data during this time. All data 
except for atmospheric pressure and data logger diagnostics should not be used.

• PWD 1 minute mean visibility(pwd_mean_vis_1min)
• cmh_sat_vapor_pressure
• Wind speed vector mean(wspd_vec_mean)
• temp_std
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• pwd_pw_code_1hr
• dew_point_std
• cmh_temp
• pwd_err_code
• rh_std
• pwd_cumul_snow
• Wind direction vector mean(wdir_vec_mean)
• cmh_dew_point
• cmh_vapor_pressure
• dew_point_mean
• Temperature mean(temp_mean)
• pwd_cumul_rain
• pwd_pw_code_inst
• trh_err_code
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• pwd_pw_code_15min
• vapor_pressure_std
• wdir_vec_std
• PWD 1 minute mean precipitation rate(pwd_precip_rate_mean_1min)
• PWD 10 minute mean visibility(pwd_mean_vis_10min)
• cmh_rh
• Vapor pressure mean, calculated(vapor_pressure_mean)

ASI/MET/M1 - Damaged cable

Damage to the temp/humidity instrument cable caused incorrect readings during this time.

• Temperature mean(temp_mean)
• Vapor pressure mean, calculated(vapor_pressure_mean)
• vapor_pressure_std
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• rh_std
• temp_std

ASI/MET/M1 - Site setup

Instruments were not yet aligned or in their permanent locations. Data during this time 
should not be used.

• pwd_pw_code_inst
• qc_pwd_cumul_rain
• qc_logger_temp
• ORG precipitation rate mean(org_precip_rate_mean)
• qc_pwd_precip_rate_mean_1min
• qc_rh_mean
• qc_wspd_vec_mean
• pwd_pw_code_15min
• qc_pwd_pw_code_1hr
• time_offset
• base_time
• pwd_err_code
• vapor_pressure_std
• qc_wdir_vec_mean
• wdir_vec_std
• logger_volt
• North latitude(lat)
• qc_org_precip_rate_mean
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• qc_logger_volt
• qc_pwd_mean_vis_1min
• Atmospheric pressure(atmos_pressure)
• PWD 1 minute mean precipitation rate(pwd_precip_rate_mean_1min)
• qc_atmos_pressure
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• East longitude(lon)
• qc_temp_mean
• qc_pwd_pw_code_15min
• logger_temp
• PWD 1 minute mean visibility(pwd_mean_vis_1min)
• Wind speed vector mean(wspd_vec_mean)
• qc_vapor_pressure_mean
• pwd_cumul_rain
• qc_wspd_arith_mean
• Temperature mean(temp_mean)
• Altitude above mean sea level(alt)
• Vapor pressure mean, calculated(vapor_pressure_mean)
• PWD 10 minute mean visibility(pwd_mean_vis_10min)
• qc_pwd_pw_code_inst
• Wind direction vector mean(wdir_vec_mean)
• rh_std
• time
• pwd_pw_code_1hr
• qc_pwd_mean_vis_10min
• temp_std

ASI/MET/M1 - Broken wire

A wire on the sensor cable broke during this time and data are incorrect.

• Temperature mean(temp_mean)
• Vapor pressure mean, calculated(vapor_pressure_mean)
• vapor_pressure_std
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• rh_std
• temp_std

ASI/MET/M1 - Temp/Humidity sensor not at standard height

Prior to 5/25, the temp/humidity sensor was mounted at 3 meters. On 5/25 the sensor was 
lowered to the standard height of 2 meters. No significant impact on data is expected.

• Temperature mean(temp_mean)
• Vapor pressure mean, calculated(vapor_pressure_mean)
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)

ASI/AOSMET/M1 - Reprocessed and Corrected: Wind sensor not aligned to north

DATA REPROCESSED and CORRECTED: 

The wind sensor was not aligned to true north, resulting in wind direction data 16 degrees 
too high.

The data were archived November 2016. Please retrieve the reprocessed data for use in your 
analysis.  

ORIGINAL DQR CATEGORY: Red( Incorrect)

REPROCESSED and CORRECTED DATA ARCHIVED:2016-11

REPROCESS IDENTIFICATION NUMBER: RID 1470

---------------------------------------------------
--- ORIGINAL DQR DESCRIPTION ---
---------------------------------------------------

The wind sensor was not aligned to true north, resulting in wind direction data 16 degrees 
too high.

• Wind direction, relative to true North(WindDirection)

SGP/MET/E33 - Missing data

For an unknown reason, data is missing during this time.

• rh_std
• vapor_pressure_std
• qc_wspd_vec_mean
• qc_tbrg_precip_total
• qc_time
• time
• qc_tbrg_precip_total_corr
• qc_vapor_pressure_mean
• Vapor pressure mean, calculated(vapor_pressure_mean)
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• qc_wspd_arith_mean
• Atmospheric pressure(atmos_pressure)
• time_offset
• qc_logger_volt
• Wind direction vector mean(wdir_vec_mean)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• East longitude(lon)
• Wind speed vector mean(wspd_vec_mean)
• base_time
• qc_temp_mean
• tbrg_precip_total
• qc_logger_temp
• Altitude above mean sea level(alt)
• qc_wdir_vec_mean
• qc_wdir_vec_std
• North latitude(lat)
• Temperature mean(temp_mean)
• logger_temp
• wdir_vec_std
• logger_volt
• qc_atmos_pressure
• qc_rh_mean
• temp_std

SGP/MET/E40 - Reprocessed and Corrected: Communications failure

DATA REPROCESSED and CORRECTED: 


A communications and data storage failure resulted in missing data. Data between 5/12 and 
5/24 are permanently missing. Data from 5/24 to 6/9 will be available after reprocessing.

The data were archived October 2016. Please retrieve the reprocessed data for use in your 
analysis. 


ORIGINAL DQR CATEGORY: Black( Missing)

REPROCESSED and CORRECTED DATA ARCHIVED:2016-10

REPROCESS IDENTIFICATION NUMBER: RID 1475

---------------------------------------------------
--- ORIGINAL DQR DESCRIPTION ---
---------------------------------------------------

A communications and data storage failure resulted in missing data. Data between 5/12 and 
5/24 are permanently missing. Data from 5/24 to 6/9 will be available after reprocessing.

• qc_vapor_pressure_mean
• East longitude(lon)
• Atmospheric pressure(atmos_pressure)
• qc_logger_temp
• qc_wspd_vec_mean
• rh_std
• tbrg_precip_total
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• qc_atmos_pressure
• Wind direction vector mean(wdir_vec_mean)
• Altitude above mean sea level(alt)
• vapor_pressure_std
• Temperature mean(temp_mean)
• Vapor pressure mean, calculated(vapor_pressure_mean)
• qc_tbrg_precip_total_corr
• base_time
• qc_wspd_arith_mean
• qc_temp_mean
• temp_std
• qc_logger_volt
• logger_volt
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• wdir_vec_std
• qc_rh_mean
• qc_tbrg_precip_total
• qc_wdir_vec_mean
• time
• Wind speed vector mean(wspd_vec_mean)
• North latitude(lat)
• time_offset
• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• logger_temp

OLI/MET/M1 - Wind sensor communication failure

Folllowing a power outage, wind sensor communications failed resulting in missing data.

• wdir_vec_std
• Wind speed vector mean(wspd_vec_mean)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Wind direction vector mean(wdir_vec_mean)

ASI/AOS/M1 - Manifold blower not working

Manifold blower not working, instrument sample flows either zero or different than 
specified. Sampling through the stack not isokinetic.

• Ambient air temperature(T_Ambient)
• Ambient pressure(P_Ambient)
• Wind direction, relative to true North(WindDirection)
• Ambient air relative humidity(RH_Ambient)
• supply_volts
• heater_volts
• Rain amount(rain_amount)
• ref_volts
• Altitude above mean sea level(alt)
• Rain intensity(rain_intensity)
• time_offset
• North latitude(lat)
• East longitude(lon)
• Wind speed(WindSpeed)
• base_time
• Rain Duration(rain_duration)
• time
• heater_temp

OLI/MET/M1 - Missing wind data

Wind sensor lost its communication settings, resulting in missing data during this time.

• wdir_vec_std
• Wind speed vector mean(wspd_vec_mean)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Wind direction vector mean(wdir_vec_mean)

OLI/MET/M1 - Missing wind data

A power interruption resulted in missing wind data during this time.

• wdir_vec_std
• Wind speed vector mean(wspd_vec_mean)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Wind direction vector mean(wdir_vec_mean)

NSA/MET/C1 - Chilled mirror hygrometer noise

During this time, the chilled mirror hygrometer experiences periods of noisy humidity 
data, likely due to mirror contamination.

• cmh_dew_point
• cmh_vapor_pressure
• cmh_rh

NSA/MET/C1 - Chilled mirror hygrometer data dropouts

During these times, the chilled mirror hygrometer humidity data drops or remains stagnant 
below expected values.

• cmh_dew_point
• cmh_vapor_pressure
• cmh_rh

NSA/MET/C1 - Chilled mirror hygrometer missing data

Chilled mirror hygrometer data are missing during this time.

• cmh_dew_point
• cmh_temp
• cmh_vapor_pressure
• cmh_rh
• cmh_sat_vapor_pressure

SGP/MET/E15 - Tipping bucket rain gauge clogged

During maintenance rounds, debris was found clogging the rain gauge funnel.

• tbrg_precip_total
• TBRG precipitation total, corrected(tbrg_precip_total_corr)

SGP/MET/E37 - Tipping bucket rain gauge clogged

Debris was found obstructing the rain gauge funnel. Precipitation data are incorrect 
during this time.

• tbrg_precip_total
• TBRG precipitation total, corrected(tbrg_precip_total_corr)

SGP/MET/E40 - Tipping bucket rain gauge clogged

Debris was found obstructing the rain gauge funnel. Precipitation data are incorrect 
during this time.

• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• tbrg_precip_total

SGP/MET/E11 - Tipping bucket rain gauge clogged

Debris was found obstructing the rain gauge funnel. Precipitation data are incorrect 
during this time.

• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• tbrg_precip_total

AWR/AOSMET/M1 - Loose cable

A loose cable caused an instrument communication failure during these times. All data are 
missing.

• Ambient air temperature(T_Ambient)
• supply_volts
• heater_temp
• ref_volts
• Wind direction, relative to true North(WindDirection)
• Ambient pressure(P_Ambient)
• heater_volts
• Rain amount(rain_amount)
• Wind speed(WindSpeed)
• Ambient air relative humidity(RH_Ambient)
• Rain Duration(rain_duration)
• Rain intensity(rain_intensity)

OLI/AOSMET/M1 - Reprocess: Wind direction incorrect

The wind sensor was not aligned to true north during this time. It was aligned 59 degrees 
west of north.

• Wind direction, relative to true North(WindDirection)

SGP/MET/E33 - Tipping bucket rain gauge clogged.

During maintenance rounds, debris was found clogging the rain gauge funnel.

• tbrg_precip_total
• TBRG precipitation total, corrected(tbrg_precip_total_corr)

SGP/MET/E15 - No precipitation recorded

For an unknown reason, the tipping bucket rain gauge did not record precipitation events.

• tbrg_precip_total
• TBRG precipitation total, corrected(tbrg_precip_total_corr)

AWR/AOSMET/M1 - Heavy frost on wind sensor

A period of heavy frost on the wind transducers prevented wind data from being recorded.

• Wind direction, relative to true North(WindDirection)
• Wind speed(WindSpeed)

SGP/MET/E41 - Debris and build-up in tipping bucket rain gauge

Debris and dirt build-up in the tipping bucket rain gauge caused missed and under-reported 
precipitation events during this time.

• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• tbrg_precip_total

ENA/MET/C1 - Aspirator wire broken

A broken wire on the temperature/relative humidity aspirator caused the fan to stop 
working. Measurements do not appear to be affected.

• Vapor pressure mean, calculated(vapor_pressure_mean)
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• vapor_pressure_std
• rh_std
• Temperature mean(temp_mean)
• temp_std

SGP/MET/E37 - Hardware failure due to lightning strike

A lightning strike caused data to be missing or incorrect during this time.

• Atmospheric pressure(atmos_pressure)
• tbrg_precip_total
• Wind direction vector mean(wdir_vec_mean)
• Wind speed vector mean(wspd_vec_mean)
• Vapor pressure mean, calculated(vapor_pressure_mean)
• wdir_vec_std
• rh_std
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Temperature mean(temp_mean)
• vapor_pressure_std
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• temp_std
• logger_temp
• logger_volt
• TBRG precipitation total, corrected(tbrg_precip_total_corr)

SGP/MET/E32 - Missing data

Data are missing for an unknown reason.

• wdir_vec_std
• vapor_pressure_std
• Wind direction vector mean(wdir_vec_mean)
• logger_volt
• qc_wspd_vec_mean
• rh_std
• qc_time
• temp_std
• tbrg_precip_total
• Atmospheric pressure(atmos_pressure)
• qc_vapor_pressure_mean
• logger_temp
• qc_tbrg_precip_total_corr
• qc_temp_mean
• qc_atmos_pressure
• qc_wspd_arith_mean
• qc_logger_temp
• North latitude(lat)
• time_offset
• Temperature mean(temp_mean)
• qc_rh_mean
• qc_wdir_vec_mean
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• Wind speed vector mean(wspd_vec_mean)
• qc_wdir_vec_std
• base_time
• East longitude(lon)
• Altitude above mean sea level(alt)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• time
• qc_tbrg_precip_total
• Vapor pressure mean, calculated(vapor_pressure_mean)
• qc_logger_volt
• TBRG precipitation total, corrected(tbrg_precip_total_corr)

SGP/MET/E33 - Missing data

Data are missing for an unknown reason.

• rh_std
• vapor_pressure_std
• qc_wspd_vec_mean
• qc_tbrg_precip_total
• qc_time
• time
• qc_tbrg_precip_total_corr
• qc_vapor_pressure_mean
• Vapor pressure mean, calculated(vapor_pressure_mean)
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• qc_wspd_arith_mean
• Atmospheric pressure(atmos_pressure)
• time_offset
• qc_logger_volt
• Wind direction vector mean(wdir_vec_mean)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• East longitude(lon)
• Wind speed vector mean(wspd_vec_mean)
• base_time
• qc_temp_mean
• tbrg_precip_total
• qc_logger_temp
• Altitude above mean sea level(alt)
• qc_wdir_vec_mean
• qc_wdir_vec_std
• North latitude(lat)
• Temperature mean(temp_mean)
• logger_temp
• wdir_vec_std
• logger_volt
• qc_atmos_pressure
• qc_rh_mean
• temp_std

SGP/MET/E11 - Missing data

Data are missing for an unknown reason.

• qc_wdir_vec_std
• qc_wspd_arith_mean
• Wind direction vector mean(wdir_vec_mean)
• qc_logger_volt
• time
• North latitude(lat)
• qc_vapor_pressure_mean
• Atmospheric pressure(atmos_pressure)
• Wind speed vector mean(wspd_vec_mean)
• rh_std
• qc_temp_mean
• qc_wdir_vec_mean
• wdir_vec_std
• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• Altitude above mean sea level(alt)
• time_offset
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• logger_volt
• tbrg_precip_total
• qc_atmos_pressure
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• qc_logger_temp
• qc_tbrg_precip_total_corr
• qc_rh_mean
• qc_time
• East longitude(lon)
• qc_tbrg_precip_total
• Temperature mean(temp_mean)
• Vapor pressure mean, calculated(vapor_pressure_mean)
• temp_std
• base_time
• logger_temp
• qc_wspd_vec_mean
• vapor_pressure_std

SGP/MET/E9 - Bad battery

A faulty battery caused periodic missing data.

• qc_temp_mean
• Wind speed vector mean(wspd_vec_mean)
• Wind direction vector mean(wdir_vec_mean)
• Atmospheric pressure(atmos_pressure)
• qc_tbrg_precip_total
• qc_vapor_pressure_mean
• qc_tbrg_precip_total_corr
• Temperature mean(temp_mean)
• temp_std
• qc_logger_volt
• tbrg_precip_total
• time_offset
• qc_time
• East longitude(lon)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• Altitude above mean sea level(alt)
• qc_wdir_vec_mean
• qc_wdir_vec_std
• qc_wspd_vec_mean
• qc_rh_mean
• time
• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• North latitude(lat)
• qc_logger_temp
• vapor_pressure_std
• logger_temp
• logger_volt
• rh_std
• wdir_vec_std
• Vapor pressure mean, calculated(vapor_pressure_mean)
• base_time
• qc_wspd_arith_mean
• qc_atmos_pressure

SGP/MET/E37 - Instrument failure due to lightning strike

A lightning strike caused a failure of the temperature and humidity probe.

• Temperature mean(temp_mean)
• vapor_pressure_std
• Vapor pressure mean, calculated(vapor_pressure_mean)
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• temp_std
• rh_std

SGP/MET/E37 - Instrument wiring incorrect

The instrument was not wired correctly following maintenance. Data are incorrect during 
this time.

• Wind direction vector mean(wdir_vec_mean)
• Wind speed vector mean(wspd_vec_mean)
• wdir_vec_std
• Wind speed, lower, 1-min avg(wspd_arith_mean)

SGP/MET/E32 - Tipping bucket rain gauge clogged

Debris was found blocking the rain gauge funnel.

• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• tbrg_precip_total

SGP/MET/E34 - Data missing

For an unknown reason, data are missing during this time.

• qc_wdir_vec_std
• time
• Wind direction vector mean(wdir_vec_mean)
• rh_std
• qc_vapor_pressure_mean
• time_offset
• qc_tbrg_precip_total
• qc_rh_mean
• temp_std
• wdir_vec_std
• base_time
• qc_temp_mean
• North latitude(lat)
• qc_wdir_vec_mean
• Wind speed vector mean(wspd_vec_mean)
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• qc_time
• logger_temp
• qc_tbrg_precip_total_corr
• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• logger_volt
• qc_logger_temp
• qc_logger_volt
• East longitude(lon)
• qc_wspd_arith_mean
• Temperature mean(temp_mean)
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• Vapor pressure mean, calculated(vapor_pressure_mean)
• vapor_pressure_std
• Altitude above mean sea level(alt)
• tbrg_precip_total
• Atmospheric pressure(atmos_pressure)
• qc_wspd_vec_mean
• qc_atmos_pressure

SGP/MET/E31 - Tipping bucket rain gauge clogged

Debris was found blocking the rain gauge funnel.

• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• tbrg_precip_total

ASI/AOSMET/M1/M1 - Computer disk failure

Data are intermittently missing from 10/4 until the computer disk was replaced on 10/13. 
Data are completely missing 10/12 at 11:00 UTC until 10/13 at 18:00 UTC.

• Ambient air temperature(T_Ambient)
• Ambient pressure(P_Ambient)
• Wind direction, relative to true North(WindDirection)
• Ambient air relative humidity(RH_Ambient)
• supply_volts
• heater_volts
• Rain amount(rain_amount)
• ref_volts
• Altitude above mean sea level(alt)
• Rain intensity(rain_intensity)
• time_offset
• North latitude(lat)
• East longitude(lon)
• Wind speed(WindSpeed)
• base_time
• Rain Duration(rain_duration)
• time
• heater_temp

SGP/MET/E35 - Tipping bucket rain gauge flatlined

For an unknown reason, the tipping bucket rain gauge was not recording precipitation 
during this time.

• tbrg_precip_total
• TBRG precipitation total, corrected(tbrg_precip_total_corr)

SGP/MET/E38 - Intermittent missing data

A data logger problem caused brief, sporadic periods of missing data during this time. 
Data logger was replaced.

• qc_wspd_arith_mean
• Wind direction vector mean(wdir_vec_mean)
• TBRG precipitation total, corrected(tbrg_precip_total_corr)
• qc_atmos_pressure
• logger_volt
• qc_vapor_pressure_mean
• qc_wdir_vec_mean
• Temperature mean(temp_mean)
• East longitude(lon)
• qc_tbrg_precip_total
• qc_wspd_vec_mean
• temp_std
• qc_rh_mean
• logger_temp
• qc_time
• Vapor pressure mean, calculated(vapor_pressure_mean)
• vapor_pressure_std
• qc_logger_temp
• qc_logger_volt
• Wind speed, lower, 1-min avg(wspd_arith_mean)
• tbrg_precip_total
• qc_wdir_vec_std
• Atmospheric pressure(atmos_pressure)
• qc_tbrg_precip_total_corr
• qc_temp_mean
• Wind speed vector mean(wspd_vec_mean)
• rh_std
• wdir_vec_std
• base_time
• Humidity, relative, at 2-m height, 1-min avg(rh_mean)
• time_offset
• North latitude(lat)
• Altitude above mean sea level(alt)
• time

SGP/MET/E13 - False corrected precipitation values

A program bug allowed for maintenance tips to be recorded as precipitation in the 
tbrg_precip_total_corr variable.

• TBRG precipitation total, corrected(tbrg_precip_total_corr)

ENA/AOS/C1 - Instrument mentors working at the site

Instrument mentors working at the site. Sample lines and electrical connections being 
reconfigured. Instruments that had no work done on them may still be affected.

• Ambient air temperature(T_Ambient)
• Wind direction, relative to true North(WindDirection)
• Wind speed(WindSpeed)
• Rain intensity(rain_intensity)
• Rain amount(rain_amount)
• ref_volts
• Ambient air relative humidity(RH_Ambient)
• heater_temp
• supply_volts
• Ambient pressure(P_Ambient)
• heater_volts
• Rain Duration(rain_duration)

• Ambient pressure(P_Ambient)
• Rain Duration(rain_duration)
• Ambient air relative humidity(RH_Ambient)
• Rain intensity(rain_intensity)
• Wind direction, relative to true North(WindDirection)
• heater_volts
• Ambient air temperature(T_Ambient)
• Rain amount(rain_amount)
• Wind speed(WindSpeed)
• ref_volts
• supply_volts
• heater_temp