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.
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.