2A-56 product ID HSTN GV Site HAR rain gauge network (in this case HAR=Harris County) 2270 rain gauge ID 200304 April 2003 4 file version asc ascii file
File header
2A-56 HSTN HAR 2270 W100_Buffa TIP 1.0 29.76222 -95.55750 KHGX 56.45 304.92 52 91 -99.9 04/07/2003 18:38 04/24/2003 15:52
2A-56 HSTN HAR 2270 same as in file name
W100_Buffa name of rain gauge location
TIP rain gauge type: tipping bucket
1.0 resoultion: 1 minute
29.76222 latitude in degree
-95.55750 longitude in degree
KHGX primary radar
56.45 range, i.e. distance between primary radar and gauge
304.92 azimuth between primary radar and gauge
Azimuth is a direction in terms of the 360 degree compass;
north at 0, east at 90, south at 180, west at 270, etc.
52 gauge coordinate in pixel at X axis
91 gauge coordinate in pixel at Y axis
Radar location is at center pixel (75,75);
Pixel (0,0) is at the SW corner. One pixel is 2kmX2km.
-99.99 radar elevation above sea level. (-99.9 not available)
04/07/2003 start date
18:38 start time (UTC)
04/24/2003 end date
15:52 end time
Data format
...............................
2003 04 07 097 20 16 00 13.30
2003 04 07 097 20 17 00 18.83
2003 04 07 097 20 18 00 25.15
2003 04 07 097 20 19 00 31.36
2003 04 07 097 20 20 00 33.86
2003 04 07 097 20 21 00 32.81
2003 04 07 097 20 22 00 32.41
...............................
2003 04 20 110 21 03 00 -23.99
2003 04 20 110 21 04 00 -23.99
...............................
2003 year
04 month
07 day # in the month
097 Julian day #
20 hour (UTC)
16 minute
00 second
13.30 rain rate in mm/hr from 20:15:00 to 20:15:59
negative sign '-' indicates low data quality due to interpolation.