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initial_conditions:atmospheric [2021/05/05 16:26]
acarreri [T255L91/62] 		initial_conditions:atmospheric [2022/08/24 17:04]
etourign [T255L91/62]
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 ==== Description ==== ==== 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]/+The atmospheric initial conditions are generated with OpenIFS  using the FULLPOS system which is a physical interpolation that takes into account the model definitions. The initial conditions are currently generated from ERA5 reanalysis. The members (e.g. fc1-fc9) are generated from the official member fc0, by applying reproducible random perturbations of the 3D temperature field. At BSC, the initial conditions are available in the following folder: /esarchive/releases/ic/atmos/[resol]/[exp]/
  
-Scripts can be retrieved from +Scripts to download and interpolate these fields can be retrieved from https://earth.bsc.es/gitlab/cp/ifs_initial_forcing.git
  
-git clone https://earth.bsc.es/gitlab/cp/ifs_initial_forcing.git+==== Old Description (before 2021) ==== 
 + 
 +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]/
  
 ==== T159L62 ==== ==== T159L62 ====
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 | i070 | ERA-Interim + ERA-Land analysis forced by WFDEI | 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 | | 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) |+| b0q0 | ERA-Interim + ERA-Land analysis (gbg4) | 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) | | 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) | | b0q3 | ERA-Interim | T255L91| 19790201| 20151101| 02,05,08,11 | fc0 - fc9 | 3D T-Pert (SST-Pert on ECFS) |
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 | b0ro | ERA-Interim + ERA-Land analysis | T255L91| 20180201| 20181101| 02,05,08,11 | fc0 - fc9 | SST-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 | | official_repro | AMIP | T255L91| 19500101| 19500101| --- | fc0 - fc4 | 3D T-Pert |
-| a2k7 | ERA5| T255L91| 19790101| 20191101| 01,02,05,08,11 | fc0 -fc9 |  |+| a2k7 | ERA5| T255L91| 19590101| 20191101| 01,02,05,08,11 | fc00 -fc01 | no pert (must use auto-ecearth3), era5-be (1959-2978) links to a543 | 
 +| cmip6dcpp | ERA40 (b0q5, 1960-1978) / ERA-Interim (b0q0,1979-2017) / ERA5 (a2k7,2018-2020) | T255L91| 19790101| 20191101| 11 | fc00 -fc09 | 3D T-Pert | 
 +| a3p3 | ERA5-BE preliminary | T255L91| 19600101| 19781101| 01,02,05,08,11 | fc00 -fc01 | no pert (must use auto-ecearth3) | 
 +| a543 | ERA5-BE final | T255L91| 19590101| 19781101| 01,02,05,08,11 | fc00 -fc01 | no pert (must use auto-ecearth3), needs update once 1940-1957 is released |
  
 ==== T511L91 ==== ==== T511L91 ====
  
 ^ ID^ COMPONENT^ GRID^ FIRST^ LAST^ INTERVAL (MONTH)^ MEMBERS^ METHOD | ^ 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 | | 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) | | b0q6 | ERA40 | T511L91| 19600201| 19781101| 02,05,08,11 | fc0 - fc9 | SST-Pert (empty files on /esarchive) |
 +| b0it | ERA-Interim| T511L91 | 19920501| 20091101| 05,11| fc0 - fc9 | SV-Pert |
 +| b0q4 | ERA-Interim | T511L91| 19790201| 20151101| 02,05,08,11 | fc0 - fc9 | SST-Pert / 3D T-Pert |
 | b0r3 | ERA-Interim | T511L91| 20160201| 20171101 | 02,05,08,11 | fc0 - fc9 | 3D T-Pert | | b0r3 | ERA-Interim | T511L91| 20160201| 20171101 | 02,05,08,11 | fc0 - fc9 | 3D T-Pert |
 +| b0ru | ERA-Interim | T511L91| 20180201| 20181101 | 02,05,08,11 | fc0 - fc9 | SST Pert |
 | b0rp | ERA-Interim + ERA-Land analysis | T511L91| 20180201| 20181101| 02,05,08,11 | fc0 - fc9 | SST 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 | +| i05f | ERA-Interim + ERA-Land analysis | T511L91| 19930501| 20091101| 05,11| fc0 - fc9 | SV-Pert | 
-| a2ym | ERA5| T255L91| 19790101| 20191101| 01,02,05,08,11 | fc0 - fc1 |  |+| b0q2 | ERA-Interim + ERA-Land analysis | T511L91| 19790201| 20171101| 02,05,08,11 | fc0 - fc9 | 3D T-Pert | 
 +| a1uc | ERA-Interim + ERA-Land analysis (gbg6) | T511L91| 19790101| 20181101| 01,02,05,08,11 | fc00 -fc01 | no pert (must use auto-ecearth3) | 
 +| a2ym | ERA5-HRES| T511L91| 19500101| 20211101| 01,02,05,08,11 | fc0 - fc1 | use auto-ecearth3 |
  
 ==== T1279L91 ==== ==== T1279L91 ====
initial_conditions/atmospheric.txt · Last modified: 2022/08/24 17:05 by etourign

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