| 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
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END |
| Suggestions: | |
| Measurements: | sgp5ebbrE7.b1: more
sgp15ebbrE7.b1: more sgp30ebbrE7.b1: more |