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How to start FSDW from 1979-01-01

L

liy2015@lzu_edu_cn

New Member
I am investigating the influence of emission in East Asia on troposphere ozone trend. I want to design an experiment from 1979 to 2015 by using CESM and the compest is FSDW. The GEOS5 ncdatas have been downloaded from https://www.earthsystemgrid.org/dataset/ucar.cgd.ccsm4.geos5.19x2.html. but the data only start from 2004-01-02. So I don't know how to start the simulation from 1997-01-01. I am looking forward to your reply. Thank you very much.
 
T

tilmes

Member
You will have to use MERRA data, those start in 1979. GEOS5 data are not available before 2004, Simone
 
L

liy2015@lzu_edu_cn

New Member
Hi，tilmes，thank you very much. I have found the MERRA data here:  https://www.earthsystemgrid.org/dataset/ucar.cgd.ccsm4.merra.1.9x2.5.atm.forcing.6hourly_inst/file.html. But there are only offline meteorology data in the website and I don't know how to find the ncdata(initial atmospheric state dataset), because there are only the waccm_geos5_2x_88L_2005-01-01_c110419.nc. in website:https://svn-ccsm-inputdata.cgd.ucar.edu/trunk/inputdata/atm/waccm/ic/. 
 
T

tilmes

Member
MERRA and GEOS5 have the same number of levels. You should be able to use the same ncdata file, Simone
 
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