tropo_sample

Sample the tropopause height from tropopause data file created by e.g. tropo at a given time, latitude, and longitude provided in the atmosphere data file . The tropopause data files may contain snapshots at a certain time or climatologies. The results in terms of tropopause geometric height, pressure, temperature, and water vapour volume mixing ratio are written to the tropopause sample output file .

# calling tropo_sample
$ tropo_sample  <ctl> <sample.tab> <tropo.nc> <var> <atm_in>

The type of tropopause information to be extracted is selected with the \<var> argument. The following options are provided by the data files generated by tropo:

parameter	description
0	none
1	climatology
2	cold point tropopause
3	WMO first lapse rate tropopause
4	WMO second lapse rate tropopause
5	dynamical tropopause

The following configuration parameters are effective in tropo_sample:

parameter	purpose	default
TROPO_SAMPLE_METHOD	Define interpolation method. Default=1: linear interpolation. Everything else: nearest neighbor.	1