ENA/AOSMET/C1 - Data not available

Data not available

• 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/AOSMET/C1 - Data missing

Instrument was not functioning resulting in missing data.

• 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/AOSMET/C1 - Failed met system

Data during this period is incorrect due to ongoing replacement of failed met system. The 
system was not fully implemented.

• 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 - Rain amount data missing

A setting on the WXT520 Weather Transmitter was incorrect and the Rain Amount was not read 
until it was fixed.

• Rain amount(rain_amount)

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/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)

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)

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 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/OZONE/TRACEGAS/C1 - missing data

The Unit 1 computer was found stuck in boot screen and had to be powered off to reboot.  
Data is missing for this period.

• 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/AOSMET/C1 - Diagnostic data flatlined

Heater temperature and supply voltage values flatlined during this time. Cause was 
undetermined. Environmental data from the sensor was not affected.

• ref_volts
• supply_volts
• heater_temp