DQRID : D120413.3
Start DateStart TimeEnd DateEnd Time Data Quality Metric
04/02/2008171805/01/20081615Incorrect
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Subject:
SGP/QCRAD/E4 - Tracker failure
DataStreams:sgpqcrad1longE4.c1, sgpqcrad1longE4.c2, sgpqcrad1longE4.s1, sgpqcrad1longE4.s2
Description:
On 4/2, the station experienced a power drop after which the tracker was not operational 
until it was reset on 5/1.

The short_direct_normal (NIP instrument) and down_short_diffuse_hemispheric (8-48 
instrument) data were bad during this time.  The down_long_hemispheric (PIR) and 
down_short_hemispheric were unaffected by this failure.  Upwelling instruments were also unaffected.  
Three component DQ checks were not valid during this time.

Documented in instrument DQR D080422.2
Suggestions: 
Don't use SW direct or diffuse data during these time periods. If 

"source_BestEstimate_down_short_hemisp" is 0, don't use Best Estimate GSW data. Note that fewer quality 
checks can be applied accurately to the BestEstimate data.
Measurements:sgpqcrad1longE4.s1:
  • short_direct_normal
  • BestEstimate_down_short_hemisp
  • down_short_diffuse_hemisp
more
sgpqcrad1longE4.c1:
  • down_short_diffuse_hemisp
  • BestEstimate_down_short_hemisp
  • short_direct_normal
more
sgpqcrad1longE4.c2:
  • short_direct_normal
  • BestEstimate_down_short_hemisp
  • down_short_diffuse_hemisp
more
sgpqcrad1longE4.s2:
  • short_direct_normal
  • down_short_diffuse_hemisp
  • BestEstimate_down_short_hemisp
more

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