source: TOOLS/CMIP6_FORCING/SOLAR/README @ 3595

Last change on this file since 3595 was 3595, checked in by tlurton, 4 years ago

20/02/2018 Th. Lurton
Updated paths to final location of input files on Ciclad: /prodigfs/project/input4MIPs/.

File size: 2.5 KB
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1Update 20/02/2018
2Thibaut Lurton
3Now directed to final location of data:
4/prodigfs/project/input4MIPs/CMIP6/CMIP/SOLARIS-HEPPA/SOLARIS-HEPPA-3-2/atmos/
5
6
7Update 05/02/2018
8Thibaut Lurton
9Scripts now have paths directed to version 3.2 of the data.
10/prodigfs/esgf/mirror/input4MIPs/CMIP6/CMIP/SOLARIS-HEPPA/SOLARIS-HEPPA-3-2/atmos/
11
12
13Solar forcing dataset from CMIP6
14See http://www.wcrp-climate.org/wgcm-cmip/wgcm-cmip6
15and http://solarisheppa.geomar.de/cmip6
16
17Version 3.1
18Not distributed through ESGF yet
19The data is available on ciclad in /prodigfs/project/input4MIPs/SOLAR/
20
21Data was processed by Rong-Ming in June 2016 and reprocessed in October 2016 by Olivier Boucher.
22The final versions of the script are CMIP6_historical.m and CMIP6_piControl.m
23it can be run in matlab on ciclad only on a line command
24> run CMIP6_historical.m
25A script process.sh runs all scripts and post-processes the files for use in IPSL-CM6.
26
27The data are used to prescribe the solar constant (tsi) and its distribution (ssi_frac) in the new
28(RRTM) SW scheme of the LMDz model. This is activated with the ok_suntime_rrtm=y flag.
29The solar constant and RSUN are output in the paramphy netcdf output file.
30
31Daily data are used. The number of timesteps in the nc file has to match the number of days
32of the year in the model (ie 360, 365 or 366 days). Otherwise the model stops.
33A tolerance was added so that a 366-day file can be used in a 365-day model year.
34
35Files are prepared for two bands (NSW=2) or 6 bands (NSW=6) option. Default NSW=6 is used !
36
37For piControl and pdControl, a single value (repeated over the number of days) is used:
38solarforcing_v3.1_XXControl_ave_Ybands_ZZZdays.nc
39XX=pi or pd for pre-industrial or present-day control
40Y=2 or 6 depending on whether NSW=2 or 6
41ZZZ=360, 365 or 366 days according to which calendar (and number of days in the year) is chosen.
42
43The average for piControl consists of the first two solar cycles after 1850 (as per CMIP6 protocol)
44The average for pdControl consists of a 1991-2010 average (not an official CMIP6 run).
45
46Annual files are available for the historical and future period:
47solarforcing_v3.1_daily_6bands_XXXX.nc
48where XXXX is the year. The files are for a Gregorian calendar (365 and 366 days according to the year).
49
50There is also a scenario with a lower solar constant in 21st century for sensitivity study.
51This is not an official CMIP6 scenario though.
52
53The solar forcing file is to be renamed solarforcing.nc in the running directory.
54 
55Olivier Boucher
5611/10/2016
57revised 27/09/2017
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