| Description: | (NOTE: THIS DQR REPLACES P960327.1 SUBMITTED EARLIER)
----------------------------------------------------
Date Submitted: 1 April 1996
Submitted By: Jim Barnard _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 problems@arm.gov.
Platform/Measurement:
What level data: (raw,a0,a1,b1,c1 etc): a1
What location was the data collected at:
Period of time in question
Begin Date 96/03/07 Time 00:00 (GMT)
End Date 96/03/21 Time 21:30 (GMT)
(For the NIP, some errors are occasionally observed
after the "End Date").
Data should be labeled:
___ questionable ___ All data fields affected
_x_ incorrect _x_ Only some data fields affected
___ wrong calibration
___ others
Discussion of Problem: Data has been collected at site E2 since
about March 7, 1996. From this date to about March 21, 1996, the signal
from both IR pyrgeometers (both upwelling and downwelling) is bad.
Additionally, the signal from the NIP and the upwelling SW sensor is
likewise bad. After March 21, 1996 these instruments were repaired
although the status of the NIP is still unclear. After this date, the NIP
has been observed to suddenly emit a signal that is far too high. After a
few hours, the signal suddenly drops back to its proper value. These
excursions are rare, however the data user should be mindful of them.
Other observations/measurements impacted by this problem:
Suggested Corrections of the Problem: (e.g. change calibration factor and
recompute, flag data with this comment, etc.) |