Version 4 (modified by aducharne, 4 years ago) (diff) |
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Change climate forcing
Author: S. Luyssaert
Last revision: 2020/28/02, A. Ducharne
This page is only relevant for offline runs, of course!
The list of available climate forcing datasets is provided on https://forge.ipsl.jussieu.fr/orchidee/wiki/Documentation/Forcings. This page also gives information on two drivers which are are available to run ORCHIDEE offline, and the required structure of the forcing files for each driver.
1. If you use the "old" driver
This driver can make use of all the shared atmospheric forcing datasets. The standard libIGCM configurations already offer the choice between two forcings:
- CRU-NCEP at 2° with OOL_SEC_STO_FG2
- WFDEI_GPCC/v1 at 0.5° with OOL_SEC_STO_FG3
If you want to change the default forcing of the above configurations, you must change the following line in COMP/orchidee_ol.card, like below to change CRU-NCEP with PGF
[BoundaryFiles] #List= (${R_IN}/SRF/METEO/CRU-NCEP/v5.3.2/twodeg/cruncep_twodeg_${year}.nc, forcing_file.nc) List= (${R_IN}/SRF/METEO/Princeton_GPCC/v1/1deg_3h/PGF_GPCC_1deg_3h__${year}.nc, forcing_file.nc) ListNonDel= ()
2. If you use the "new" driver
An example with libIGCM is provided in the standard ORCHIDEE_OL configurations under the name OOL_SEC_STO_FG3nd, designed to use WFDEI_GPCC/v2, see https://forge.ipsl.jussieu.fr/orchidee/browser/trunk/ORCHIDEE_OL/OOL_SEC_STO_FG3nd
The atmospheric forcing dataset is defined in ochidedriver.card, where you must insert a line for the simulated year, and two other lines for the previous and following years:
[BoundaryFiles] List= (${R_IN}/SRF/METEO/WFDEI_GPCC/v2/leap/WFDEI_GPCC_${year_m1}.nc, forcing_yearm1.nc),\ (${R_IN}/SRF/METEO/WFDEI_GPCC/v2/leap/WFDEI_GPCC_${year}.nc, forcing_year.nc),\ (${R_IN}/SRF/METEO/WFDEI_GPCC/v2/leap/WFDEI_GPCC_${year_p1}.nc, forcing_yearp1.nc)