atm_select

Extract subsets of air parcels from atmospheric data files.

The calling sequence is:

# calling atm_select
$ atm_select  <ctl> <atm_select> <atm1> [<atm2> ...]

The atmospheric data file(s) [ …] contain(s) a list of data points with the structure:

time altitude longitude latitude quantity_1 quantity_2 ...

Following the selection criteria provided in the control file atm_select extracts a subset of the data points and writes them into a new atmospheric data file with the file name provided in . The following atm_select specific configuration parameters can be used:

parameter	purpose	default
SELECT_STRIDE	select every i-th data point	1
SELECT_IP0	set index range start	0
SELECT_IP1	set index range end	0
SELECT_T0	set time range start [s]	0
SELECT_T1	set time range end [s]	0
SELECT_Z0	set altitude range start [km]	0
SELECT_Z1	set altitude range end [km]	0
SELECT_LON0	set longitude range start [deg]	0
SELECT_LON1	set longitude range end [deg]	0
SELECT_LAT0	set latitude range start [deg]	0
SELECT_LAT1	set latitude range end [deg]	0
SELECT_R0	set radius range start [km]	0
SELECT_R1	set radius range end [km]	0
SELECT_RLON	set station longitude [deg]	0
SELECT_RLAT	set station latitude [deg]	0

The parameters should be given as an indexed list in the control file (example).