Data Format Descriptions
Processed Hourly RASS Files Produced by Weber/Wuertz Algorithm
FILE NAMING CONVENTION:
SSSYYJJJ.HHt
where
SSS = SiteID
YY = Year
JJJ = Julian Day
HH = Hour
Date and time are in UTC and represent the start time of the average.
DATA DESCRIPTION:
The data format is as follows for each SSSYYJJJ.HHt file:
Line 1: Station name, N Latitude*100, W Longitude*100, and site elevation (m)
Line 2: Date and end time of average: yy mm dd hh mm ss
averaging time (m), maximum number of samples
available for averaging, number of gates,
recommended minimum number of samples to include in average
Line 3: etc.,
Height above mean sea level (km)
1st average virtual temperature (C) (corrected for vertical motion
by correcting the average uncorrected
virtual temperature with the with the
average vertical motion)
2nd average virtual temperature (C) (uncorrected for vertical motion)
3rd average virtual temperature (C) (corrected for vertical motion by
correcting the sample level uncorrected
virtual temperatures with the sample
level vertical motion and then averaged)
Acoustic velocity (m/s)
Vertical velocity (m/s)
Acoustic SNR (dB)
Vertical SNR (dB)
Number of acoustic samples in average
Number of vertical velocity samples in average
1st average virtual temperature QC value
2nd average virtual temperature QC value
3rd average virtual temperature QC value
Quality assessment information may be obtained in two different ways.
First, the number of samples in the average (line: 3 fields: 9 and 10) may be
compared with the recommended prescribed minimum (line: 2 field 10) to assess
the representativeness of the average temperature. Second, QC values (line: 3
fields: 11, 12, and 13) greater than 10 and less than 111 indicate that
the averaged sample failed the time-height consistancy test. All data failing
to meet the quality assurance constraints should be viewed as suspect and
validated by the user upon further review.
