DQRID : D940830.8
Start DateStart TimeEnd DateEnd Time Data Quality Metric
08/09/1994000008/23/19941922Suspect
more
Subject:
Stopped Ventilation Fan
DataStreams:sgp15ebbrE7.b1, sgp5ebbrE7.b1, sgp30ebbrE7.b1
Description:
DQR No:                               Platform: EBBR

Subject: Stopped Ventilation Fan

Date Submitted: 30 August 1994
Submitted By:                         _x_  Instrument Mentor
                                      ___  EST Member
                                      ___  Science Team Member
                                      ___  Other _____________________________

For questions or problems, please contact the ARM Experiment Center at
509-375-6898 or via email at dqr@arm.gov.

Platform/Measurement:
        What level data: (raw,a0,a1,b1,c1 etc): a0 (5 minute),
                                                a1 (15 and 30 minute)

    What location was the data collected at: E7, Elk Falls, KS

    Period of time in question
        Begin Date 8/9/94
        End Date   8/23/94   Time 1922 GMT

 Data should be labeled:
 ___  questionable                      ___  All data fields affected
 ___  incorrect                         _x_  Only some data fields affected
 ___  wrong calibration
 _x_  others (information only)

 Discussion of Problem:

Sometime between August 9 and 23, 1994 the ventilation fan of the
EBBR stopped; the fan guard was clogged with insect remains.  The fan was
restarted at 1922 GMT on 23 August.  Inspection of the EBBR data does not
indicate any ill affects on the calculated sensible and latent heat during
the period.  The fan may have stopped soon before the arrival of the site
operator on 23 August.  I cannot suggest flagging the data as incorrect, but
this message should still be attached to the data so that anyone who might
discover something unusual may have some basis for explaining it.

The quantities that are normally affected by stoppage of the ventilation to
the temperature and relative humidity sensors are:

5 minute:  tair_top, tair_bot, thum_top, thum_bot, hum_top, hum_bot,
           vp_top, and vp_bot

15 minute: rr_thum_r, rr_thum_l, mv_hum_r, mv_hum_l, tair_r, tair_l

30 minute: tair_top, tair_bot, thum_top, thum_bot, hum_top, hum_bot,
           vp_top, vp_bot, bowen, e, h

Other observations/measurements impacted by this problem:

see list above

Suggested Corrections of the Problem: (e.g. change calibration factor and
recompute, flag data with this comment, etc.)

Enclose the message above with the data if possible.

Data Processing Notes                Date

-------------------------------------------------------------------
END
Suggestions: 
Measurements:sgp5ebbrE7.b1:
  • lon
  • time_offset
  • rh_top_fraction
  • temp_reference
  • wdir_vec_mean
  • temp_trh_top
  • wspd_vec_mean
  • base_time
  • atmos_pressure
  • net_radiation
  • alt
  • rh_bottom_fraction
  • lat
  • vapor_pressure_top
  • wspd_arith_mean
  • temp_air_bottom
  • home_signal
  • temp_trh_bottom
  • temp_air_top
  • vapor_pressure_bottom
  • wdir_vec_std
more
sgp15ebbrE7.b1:
  • soil_heat_flow_4_mv
  • soil_moisture_2_r
  • lon
  • net_radiation_mv
  • soil_temp_1_rr
  • temp_reference_rr
  • battery_voltage
  • soil_moisture_5_r
  • rh_right_mv
  • soil_temp_3_rr
  • soil_moisture_1_r
  • wspd_arith_mean
  • soil_heat_flow_1_mv
  • temp_air_right
  • wdir_vec_mean_mv
  • soil_moisture_4_r
  • rh_left_mv
  • soil_temp_5_rr
  • atmos_pressure_mv
  • temp_air_left
  • alt
  • soil_heat_flow_3_mv
  • lat
  • soil_temp_2_rr
  • time_offset
  • soil_heat_flow_2_mv
  • soil_moisture_3_r
  • temp_trh_right_rr
  • temp_trh_left_rr
  • soil_temp_4_rr
  • soil_heat_flow_5_mv
  • base_time
  • home_signal
more
sgp30ebbrE7.b1:
  • temp_trh_top
  • soil_heat_flow_3
  • soil_heat_flow_4
  • soil_heat_flow_5
  • soil_heat_flow_1
  • soil_heat_flow_2
  • lon
  • wspd_vec_mean
  • rh_bottom_fraction
  • home_signal_30
  • wspd_arith_mean
  • temp_trh_bottom
  • wdir_vec_std
  • atmos_pressure
  • surface_soil_heat_flux_4
  • surface_soil_heat_flux_5
  • surface_soil_heat_flux_2
  • time_offset
  • surface_soil_heat_flux_3
  • surface_soil_heat_flux_1
  • corr_soil_heat_flow_2
  • corr_soil_heat_flow_3
  • corr_soil_heat_flow_4
  • corr_soil_heat_flow_5
  • rh_top_fraction
  • home_signal_15
  • corr_soil_heat_flow_1
  • vapor_pressure_top
  • temp_air_top
  • net_radiation
  • bowen_ratio
  • soil_heat_capacity_2
  • soil_heat_capacity_1
  • soil_heat_capacity_5
  • surface_soil_heat_flux_avg
  • soil_heat_capacity_4
  • soil_heat_capacity_3
  • temp_reference
  • latent_heat_flux
  • energy_storage_change_5
  • energy_storage_change_3
  • base_time
  • energy_storage_change_4
  • energy_storage_change_1
  • energy_storage_change_2
  • soil_moisture_1
  • temp_air_bottom
  • soil_temp_1
  • soil_moisture_4
  • soil_moisture_5
  • soil_moisture_2
  • soil_moisture_3
  • vapor_pressure_bottom
  • sensible_heat_flux
  • soil_temp_2
  • soil_temp_3
  • soil_temp_4
  • soil_temp_5
  • wdir_vec_mean
  • lat
  • alt
more

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