Earth Sciences

Earth Sciences Wiki

User Tools

Site Tools


initial_conditions:atmospheric

Description

The atmospheric initial conditions are generated with the IFS code at ECMWF using the FULLPOS system which is a physical interpolation that takes into account the model definitions. The initial conditions are currently generated from ERA-Interim and ERA40, while the surface parameters are replaced in some ICs with the ERA-Land analysis. The ERA-Land analysis is forced by bias-corrected input and represent the surface variables more accurate than ERA-Interim. The members are generated using singular vectors (SV-Pert) or with random perturbations of the SST (SST-Pert). At BSC, the initial conditions are available in the following folder: /esarchive/releases/ic/atmos/[resol]/[exp]/

Scripts can be retrieved from

git clone https://earth.bsc.es/gitlab/cp/ifs_initial_forcing.git

T159L62

ID ANALYSIS GRID FIRST LAST INTERVAL (MONTH) MEMBERS METHOD
b07n ERA-Interim T159L62 19600201 20110801 02,05,08,11 fc0 - fc9 SV-Pert
b0nq ERA-Interim T159L62 20130201 20141101 02,05,08,11 fc0 - fc9 SV-Pert
b0p4 ERA-Interim T159L62 19800201 20151031 02,05,06,08,10,11 fc0 - fc19 SV-Pert
b0qa ERA-Interim + ERA-Land analysis T159L62 19790201 20151101 02,05,08,11 fc0 - fc9 SST-Pert
b0q8 ERA40 T159L62 19600201 19781101 02,05,08,11 fc0 - fc9 SST-Pert
b0q9 ERA-Interim T159L62 19790201 20170501 02,05,08,11 fc0 - fc9 SST-Pert
b0rf ERA-Interim T159L62 20170801 20171101 08,11 fc0 - fc9 SST pert
b0so ERA-Interim T159L62 20180201 20181101 02,05,08,11 fc0 - fc29 SST pert

T255L91/62

ID COMPONENT GRID FIRST LAST INTERVAL (MONTH) MEMBERS METHOD
b0p6 ERA-Interim T255L91 19800201 20151101 02,06,10 fc0 - fc19 SV-Pert
b0oo ERA-Interim T255L91 19800201 20140201 02 fc0 - fc9 SV-Pert
b0p2 ERA-Interim T255L91 20150201 20150201 02 fc0 - fc99 SV-Pert
b0p9 ERA-Interim T255L91 19800101 20100101 01 fc0 - fc9 SV-Pert
b0pc ERA-Interim T255L91 20150101 20150101 01 fc0 - fc99 SV-Pert
b0ga ERA-Interim T255L62 19790801 20101101 02,05,08,11 fc0 - fc9 NOT IN ESNAS?
i05e ERA-Interim + ERA-Land analysis T255L91 19930501 20091101 05,11 fc0 - fc9 SV-Pert
i070 ERA-Interim + ERA-Land analysis forced by WFDEI T255L91 19930501 20091101 05,11 fc0 - fc9 SV-Pert
b0io ERA-Interim T255L91 19930501 20091101 05,11 fc0 - fc9 SV-Pert
b0q0 ERA-Interim + ERA-Land analysis T255L91 19790201 20171101 02,05,08,11 fc0 - fc9 3D T-Pert (SST-Pert on ECFS)
a1tz ERA-Interim + ERA-Land analysis T255L91 19790201 20181101 01,02,05,08,11 fc0 no pert (must use auto-ecearth3)
b0q3 ERA-Interim T255L91 19790201 20151101 02,05,08,11 fc0 - fc9 3D T-Pert (SST-Pert on ECFS)
b0q5 ERA40 T255L91 19600201 19781101 11 fc0 - fc9 3D T-Pert (SST-Pert on ECFS)
b0rt ERA-Interim T255L91 20160201 20171101 02,05,08,11 fc0 - fc9 3D T-Pert
b0ro ERA-Interim + ERA-Land analysis T255L91 20180201 20181101 02,05,08,11 fc0 - fc9 SST-Pert
official_repro AMIP T255L91 19500101 19500101 fc0 - fc4 3D T-Pert
a2k7 ERA5 T255L91 19790101 20191101 01,02,05,08,11 fc0 -fc9

T511L91

ID COMPONENT GRID FIRST LAST INTERVAL (MONTH) MEMBERS METHOD
b0it ERA-Interim T511L91 19920501 20091101 05,11 fc0 - fc9 SV-Pert
prim ERA-Interim + ERA-Land climatology (1981-2010) T511L91 19500101 19500101 01 fc0 SV-Pert
i05f ERA-Interim + ERA-Land analysis T511L91 19930501 20091101 05,11 fc0 - fc9 SV-Pert
b0q2 ERA-Interim + ERA-Land analysis T511L91 19790201 20171101 02,05,08,11 fc0 - fc9 3D T-Pert
a1uc ERA-Interim + ERA-Land analysis T511L91 19790201 20171101 01,02,05,08,11 fc0 no pert (must use auto-ecearth3)
b0q4 ERA-Interim T511L91 19790201 20151101 02,05,08,11 fc0 - fc9 SST-Pert / 3D T-Pert
b0q6 ERA40 T511L91 19600201 19781101 02,05,08,11 fc0 - fc9 SST-Pert (empty files on /esarchive)
b0r3 ERA-Interim T511L91 20160201 20171101 02,05,08,11 fc0 - fc9 3D T-Pert
b0rp ERA-Interim + ERA-Land analysis T511L91 20180201 20181101 02,05,08,11 fc0 - fc9 SST Pert
b0ru ERA-Interim T511L91 20160201 20171101 02,05,08,11 fc0 - fc9 SST Pert
a2ym ERA5 T255L91 19790101 20191101 01,02,05,08,11 fc0 - fc1

T1279L91

ID COMPONENT GRID FIRST LAST INTERVAL (MONTH) MEMBERS METHOD
b0pr ERA-Interim T1279L91 20050101 20060101 01 fc0

Need for atmospheric initial conditions

Add here any needs on initial conditions:

Current problems to generate intial conditions

1) ERA-Land conditions are only available until 20160831.

2) ERA-Land conditions are only available after 1980, conditions prior to this date can not be produced currently.

EC-Earth CPWG wiki

IC/nudging file generation howtos

initial_conditions/atmospheric.txt · Last modified: 2021/05/05 18:26 by acarreri