High Resolution Radiosonde - Aberporth
Data file format
The Aberporth radiosonde data is in a simple
ASCII format.
The naming convention is balYYMMDD_HH, where "YYMMDD"
is year/month/day eg 960920, "HH" is the hour of release
of the balloon.
Each file contains one ascent. The measurements are displayed
in the following format. Where data is missing, a default value
is written.
The fields in each file are as indicated below ...
FORMAT PARAMETER FIELDS COLUMNS UNITS DEFAULT
-------------------------------------------------------------------------------------
I4 Time after launch 1 1-4 mins
I3 Time after launch 2 5-7 secs
I5 Pressure 3 8-12 mb 9999
F6.1 Temperature 4 13-18 deg C 9999
I4 Relative humidity 5 19-22 % 999
F8.4 Humidity mixing ratio 6 23-30 g/kg 99.9999
I6 Height (from sonde data) 7 31-36 m -9999
I6 Height (from radar data) 8 37-42 m -9999
I4 Azimuth of sonde from launch 9 43-46 deg -99
F5.1 Elevation of sonde from launch 10 47-51 deg -9.9
I7 Slant range of sonde 11 52-58 m -9999
I4 Wind direction 12 59-62 deg 999
F6.1 Wind speed 13 63-68 m/s 999.9
-------------------------------------------------------------------------------------