source: LMDZ6/trunk/libf/phylmd/ecrad/test/ckdmip/README @ 4773

Last change on this file since 4773 was 4773, checked in by idelkadi, 12 months ago
  • Update of Ecrad in LMDZ The same organization of the Ecrad offline version is retained in order to facilitate the updating of Ecrad in LMDZ and the comparison between online and offline results. version 1.6.1 of Ecrad (https://github.com/lguez/ecrad.git)
  • Implementation of the double call of Ecrad in LMDZ


File size: 1.6 KB
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1*** BASIC TEST ***
2
3This file contains
4"ckdmip_evaluation1_concentrations_present_reduced.nc", the 50
5clear-sky atmospheric profiles of the CKDMIP "Evaluation-1" dataset
6described by Hogan and Matricard (GMDD 2020), and the corresponding
7line-by-line fluxes in
8"ckdmip_evaluation1_lw_fluxes_present_reduced.nc" and
9"ckdmip_evaluation1_sw_fluxes_present_reduced.nc".
10
11Type "make" in this directory to run ecRad on these profiles.  You
12will need the nco tools, because the shortwave calculation is
13performed five times for different solar zenith angles and the results
14are concatenated into one file.
15
16Then run the Matlab script "do_evaluate_ecrad.m" to evaluate the ecRad
17calculations against line-by-line, producing plots in the same style
18as Figs. 5 and 7 of Hogan and Matricardi (2020).
19
20By default the ecCKD gas optics is used: to use RRTMG, use instead
21"make GASMODEL=rrtmg", which uses the namelist file config-rrtmg.nam
22instead of config-ecckd.nam.  To use a different spectral
23configuration file with ecCKD, edit config-ecckd.nam.
24
25
26*** CKDMIP SCENARIOS ***
27
28To run ecRad on a wider range of CKDMIP scenarios, first download a
29selection of concentration files from the CKDMIP FTP site to the
30"concentrations" directory:
31
32  make download
33
34This also downloads the line-by-line reference fluxes to "lbl_fluxes".
35Then run ecRad on them using ecCKD gas optics with:
36
37  make scenarios
38
39This generates *_lw_fluxes_* and *_sw_fluxes_* files in the "fluxes"
40directory.
41
42Or with the following you can use RRTMG gas optics:
43
44  make GASMODEL=rrtmg scenarios
45
46You can clean up with "make clean" or delete any downloaded files with
47"make distclean".
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