Data Format Descriptions
Radar Hourly Wind Files Produced By POP [v4.1]
FILE NAMING CONVENTION:
SSSYYJJJ.HHw where SSS = SiteID YY = Year JJJ = Julian Day HH = Hour Date and time are in UTC and represent the start time of the average.
Line 1: BLANK LINE Line 2: " SSS" "additional info. (optional)" where SSS = 3 letter station ID Line 3: " WINDS rev 4.1" (rev number will change if file format changes) Line 4: [for station] latitude (N); longitude (W); elevation (m) Line 5: date; begin time of consensus; UT offset (minutes) [format " yy mm dd hh mm ss ut_offset"] Line 6: consensus averaging time (minutes); number of beams; number of range gates Line 7: [for each beam - format "num:tot (window) "] number of records required to make consensus (num) total number of records (tot) the consensus window size (m/s) Line 8: number of coherant integrations [oblique and vertical] number of spectral averages [oblique and vertical] pulse width (ns) [oblique and vertical] inner pulse period (ms) [oblique and vertical] Line 9: full-scale Doppler value (m/s) [oblique, vertical] vertical correction applied to obliques? 0=no, 1=yes delay to first gate (ns) [oblique, vertical] number of gates [oblique, vertical] spacing of gates (ns) [oblique, vertical] Line 10: [for each beam] azimuth; elevation (degrees) (if elevation > 90 then it is in degrees*100, 999 missing beams) Line 11: Labels for columns of data that follow Line 12: Start of data [A LINE FOR EACH RANGE GATE, INCLUDES THE FOLLOWING] Height above ground (km) Wind speed (m/s) Wind direction (deg E of N from) Resultant-wind quality control number (0=valid; 2=estimated; 7=supect; 9=invalid) [for each beam] Radial velocity (m/s) (positive toward radar; 9999. missing data) [for each beam] Number of records that made consensus [for each beam] Average SNR (dB) of records in consensus [for each beam] Radial quality control number (valid <=10; >10 suspect <=100; invalid >100) NOTE: Beam order is determined by the azimuth & elevation values in line 10.