Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
08/18/1994 | 1200 | 09/21/1994 | 1530 | Suspect |
Subject: | Intermittent Stopped or Slowed Aspirator Fans |
DataStreams: | sgp15ebbrE7.b1, sgp5ebbrE7.b1, sgp30ebbrE7.b1 |
Description: | DQR No: Platform: EBBR Subject: Intermittent Stopped or Slowed Aspirator Fans Date Submitted: 26 September 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: EBBR/T and RH 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 8/18/94 Time 1200 GMT End Date 9/21/94 Time 1530 GMT Data should be labeled: ___ questionable ___ All data fields affected _X_ incorrect _x_ Only some data fields affected ___ wrong calibration ___ others (information only) Discussion of Problem: Around 1200 GMT on September 21, 1994 the aspirator fans of the EBBR intermittently stopped or slowed significantly; the fans were clogged with insect remains and spider webs. Only a few weeks earlier the same situation occurred at this EBBR. The 15 minute data reveals that most of the time the right aspirator fan was the one that failed to work, although there are times that it appears that the left fan was either not working also or was the only one not working. Unlike the previous occurrence, the 30 minute flux data does show some indication of this problem, although, as usual, it is far easier to see in the 15 minute data. The fans were cleaned out and restarted at 1530 GMT on September 21, 1994. The data listed below should be flagged as incorrect for the period shown above. 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: more
sgp15ebbrE7.b1: more sgp30ebbrE7.b1: more |