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Processing of ECMWF data for BOLCHEM

Structure of the directory where to process ECMWF data:

• include/def_soil.F90, dimensions.inc, preproc.inc
• pre/preproc.F90, preproc.run
• soil/orogr_global_latlon_1km.bin, veget_global_latlon_1km.bin, soil_fao_global_latlon_8km.bin, worldexp.dat
• input_data/
• output_data/

WARNING: libgribex package is needed!

WARNING: ECMWF domain should be greater than BOLAM domain (ask Massimo D'Isidoro for details.)

Procedure:

1) modify the script pre/preproc.run to find the files located in include, soil and input_data

2) modify the file include/preproc.inc

• Bolam grid needs:

DLON, DLAT : which can be <= ECMWF resolution (DXA and DYA in this file)

X0D,Y0D : center of Bolam domain and is almost equal to geographical center of the domain

• Analisi grid section refers to ECMWF data and needs:

IANA and JANA: number of longitude and latitude points (eg. IANA=(latN-latS)/DYA))

X1A,Y1A : coordinates of south-west angle of ECMWF domain

• BOLAM grid needs also ALFA which can vary between 1 and 2. Usually works with 2.7 for 'ibridi'(ask Massimo D'Isidoro for details.).

3) modify the file include/dimensions.inc NLON, NLAT :number of points in BOLAM domain

 There is no direct relationship between NLON&NLAT and IANA&JANA,
only the rule that NLON,NLAT should be smaller than IANA, JANA.

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