DQRID : D021211.11
Start DateStart TimeEnd DateEnd Time Data Quality Metric
09/01/1998000002/28/19992359Suspect
more
Subject:
NSA/GNDRAD/C1 - Noisy PIR Data
DataStreams:nsagndrad60sC1.a1
Description:
During the period referenced, the ground PIR was noisy in comparison to the sky PIR data.  
At the end of November, the noise increased to roughly 10 W/m2 from peak to peak.  After 
12/23/98, the noise decreased in amplitude but still had noisy patterns.  

On 01/17-18/99, there was an increase again in the noise level (4 GMT 01/17 - 5 GMT 
01/18). During this period the gndrad IRT data also exhibited noise patterns (the IRT was not 
operational).

In February, the instrument exhibited large noise variations again.  On 02/16, a wiring 
problem was corrected and the noise dropped back to 1-5 W/m2.  However, the noise levels 
began to increase again.
Suggestions: 
Measurements:nsagndrad60sC1.a1:
  • pir1_sd
  • pir1_max
  • pir1_mean
  • pir1_min
more

Close this window