Changes between Version 2 and Version 3 of Documentation/UserGuide/ChangeCForcing

Timestamp:

2020-02-28T11:42:39+01:00 (4 years ago)

Author:

aducharne

Comment:

--

Documentation/UserGuide/ChangeCForcing

@@ -1 @@
-Making the following change in orchidee_ol.card on asterix seems to work.
+= 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 [https://forge.ipsl.jussieu.fr/orchidee/browser/trunk/ORCHIDEE_OL/OOL_SEC_STO_FG2/COMP/orchidee_ol.card OOL_SEC_STO_FG2]
+- WFDEI_GPCC/v1 at 0.5° with [https://forge.ipsl.jussieu.fr/orchidee/browser/trunk/ORCHIDEE_OL/OOL_SEC_STO_FG3/COMP/orchidee_ol.card 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= (${R_BC}/OOL/${config_UserChoices_TagName}/NCC/ncc_for_${CyclicYear}.nc, forcing_file.nc)
-
-List= (${R_BC}/OOL/${config_UserChoices_TagName}/CRU-NCEP/v5.2/cruncep_${CyclicYear}.nc, forcing_file.nc)
+#List=  (${R_IN}/SRF/METEO/CRU-NCEP/v5.3.2/twodeg/cruncep_twodeg_${year}.nc, forcing_file.nc)
+List=  (${R_IN}/SRF/METEO/Princeton_GPCC/v1/1deg_3h/cruncep_twodeg_${year}.nc, forcing_file.nc)
 ListNonDel= ()
 }}}
-One thing to notice is that CRU-NCEP and CRU are both at 0.5 degrees. This means if you use the same run def file as for the NCC forcing, you will run four pixels instead of one using these maps.
+
+== 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)
+}}}
+
+
+