DQRID : D951127.3
Start DateStart TimeEnd DateEnd Time Data Quality Metric
11/18/1995031511/21/19952130Incorrect
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Subject:
SGP/EBBR/E12 - AEM Failure/Right Radiation Shield OFF
DataStreams:sgp30ebbrE12.b1
Description:
On 18 November 1995 the AEM at E12, Pawhuska, OK stopped exchanging, with
the right radiation shield at the bottom position.  The 30 minute home
signal reflects this condition.  During the 21 November PM visit, the site
operators also found that the right radiation shield was no longer attached
to the AEM, but was dangling by its conduit.  It is not clear whether both
conditions occurred simultaneously.  Comparison of E12 data with that at
the Central Facility indicates that E12 data was correct on 17 November.

The AEM had stopped exchanging because a transistor became unsoldered from
the AEM circuit board.  Site operators repaired this and reattached the
right radiation shield to bring the system to operational status at 2130
GMT.

All 30 minute latent heat (e), sensible heat (h), and Bowen ratio (bowen)
data during the period above are incorrect.
Suggestions: 
Measurements:sgp30ebbrE12.b1:
  • sensible_heat_flux
  • latent_heat_flux
  • bowen_ratio
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