DQRID : D070226.1
Start DateStart TimeEnd DateEnd Time
01/20/2007135701/29/20072140
12/08/2006012512/14/20062229
12/16/2006154512/21/20061105
12/23/2006161201/18/20072357
11/20/2006003011/27/20060254
more
Subject:
NSA/METTWR/C1 - 40m Wind Direction Data Suspect
DataStreams:nsamettwr4hC1.b1
Description:
The 40m wind direction data was suspect due to icing on the vane or a failing shafter 
heater or a combination of both.  The affected data can be easily seen on comparison plots 
with other levels data or by checking the standard deviation of the 40m wind direction.  
Any standard deviation of less than 0.10 degrees for the 40m level suggest a sluggish/ice 
affected sensor.
Suggestions: 
Use 20m wind direction data instead.
Measurements:nsamettwr4hC1.b1:
  • 40m Vector Averaged Wind Direction(WD40M_DU_WVT)
  • Standard Deviation of 40m Vector Averaged Wind Direction(WD40M_SDU_WVT)
more

Close this window