1. New snow QC in the CY47R3

ID Cycle Type Resolution Start End Control Description Result
hqx1 47R1.2 an TCo399 01/12/2019 31/03/2020 hezu New QC for SYNOP in China
htvb 47R3.4 an TCo399 01/12/2020 28/02/2021 hsla New QC for fresh snow
htvc 47R3.4 an TCo399 01/12/2020 28/02/2021 hsla htvb + new QC for SYNOP in China

2. Experiments for the CY49R1

ID Cycle Type Resolution Start End Control Description Result
hwcu 48R1.0 an TCo399 02/12/2020 31/08/2021
New QC for fresh snow and SYNOP in China
hxni 48R1.0 an TCo399 02/12/2020 31/08/2021 hwcu hwcu + snow DA changes (intermediate version) Details of snow DA changes for 49r1
i09s 48R1.0 an TCo399 02/06/2020 31/08/2020 hut7 CA contributions (except SCF change)
i09t 48R1.0 an TCo399 02/12/2020 28/02/2021 hut8 CA contributions (except SCF change)
i0qt 48R1.1 an TCo399 02/06/2020 31/08/2020 hzwt CA contributions (except SCF change)
i0qu 48R1.1 an TCo399 02/12/2020 28/02/2021 hzwu CA contributions (except SCF change)
i0qv 48R1.1 an TCo399 01/12/2021 28/02/2022 hzx1 CA contributions (except SCF change)
i0qw 48R1.1 an TCo399 01/06/2022 31/08/2022 hzx2 CA contributions (except SCF change)
i0of 49R1 v4 an TCo399 01/12/2021 28/02/2022 hzr7 CA contributions (except SCF change)
i0og 49R1 v4 an TCo399 01/06/2022 31/08/2022 hzr8 CA contributions (except SCF change)
i0ys 49R1 v4 an TCo399 01/12/2021 28/02/2022 hzr7 All CA contributions: final version for 49R1 v7
i132 49R1 v4 an TCo399 01/06/2022 31/08/2022 hzr8 All CA contributions: final version for 49R1 v7
i1il 49R1 v4 an TCo399 01/03/2022 30/06/2022
Control initialized from hzr7
i1im 49R1 v4 an TCo399 01/03/2022 30/06/2022 i1il Initialized from i0of
i1j6 49R1 v4 an TCo399 01/03/2022 30/06/2022 i1il Iinitialized from i0ys: final version for 49R1 v7
i1tn 49R1 v4 an TCo399 02/12/2020 30/06/2021
Control
i1to 49R1 v4 an TCo399 02/12/2020 30/06/2021 i1tn CA contributions (except SCF change)
i1tp 49R1 v4 an TCo399 02/12/2020 30/06/2021 i1tn All CA contributions: final version for 49R1 v7
i2rq 49R1 v6 an TCo799 01/12/2021 28/02/2022


i2rr 49R1 v7 an TCo799 01/12/2021 28/02/2022 i2rq All CA contributions at a higher resolution

3. Experiments for the CY49R2

ID Cycle Type Resolution Start End Control Description Result
i3zb 49R1 v11 an TCo399 01/12/2021 28/02/2022 i3ud Snow capping for entire the field

4. Experiments for a paper on the revised snow DA and SCF

ID Cycle Type Resolution Start End Control Description Result
i0t9 CY48R1.1 an TCo399 01/12/2021 31/05/2022
Control
i0ta CY48R1.1 an TCo399 02/12/2020 31/05/2021
Control
i0td CY48R1.1 an TCo399 01/12/2021 31/05/2022 i0t9 Snow DA changes
i0te CY48R1.1 an TCo399 02/12/2020 31/05/2021 i0ta Snow DA changes
i0zi CY48R1.1 an TCo399 01/12/2021 31/05/2022 i0t9 Snow DA + SCF changes
i0zj CY48R1.1 an TCo399 02/12/2020 31/05/2021 i0ta Snow DA + SCF changes
i644 CY48R1.1 an TCo399 01/12/2021 31/05/2022 i0t9 Snow DA + SCF changes (modified version)
i645 CY48R1.1 an TCo399 02/12/2020 31/05/2021 i0ta Snow DA + SCF changes (modified version)
i1yv CY48R1.1 an TCo399 01/12/2021 31/05/2022 i0t9 Permafrost changes (Cao et al. 2022)
i1yw CY48R1.1 an TCo399 02/12/2020 31/05/2021 i0ta Permafrost changes (Cao et al. 2022)
i213 CY48R1.1 an TCo399 01/12/2021 31/05/2022 i1yv i1yv + Snow DA changes
i214 CY48R1.1 an TCo399 02/12/2020 31/05/2021 i1yw i1yw + Snow DA changes
i2hu CY48R1.1 an TCo399 01/12/2021 31/05/2022 i1yv i1yv + Snow DA + SCF changes
i2hv CY48R1.1 an TCo399 02/12/2020 31/05/2021 i1yw i1yw + Snow DA + SCF changes

5. Offline land surface reanalyses

ID Cycle Type Resolution Start End Control Description Result
hsts 48R1 v11 surface TCo319 01/09/1998 31/12/2021
Open-loop
hsv1 48R1 v11 surface TCo319 01/09/1998 31/12/2021 hsts Snow analysis
htyv 48R1 v11 surface TCo319 01/09/1998 31/12/2021 hsts Soil moisture + snow analysis
hwlo 48R1.0 surface TCo319 01/09/1968 31/12/2022
Open-loop: used to compare with the SSA only reanalysis
hwlq 48R1.0 surface TCo319 01/09/1968 31/12/2022 hwlo Soil moisture + snow analysis
i09w 49R1 v4 surface TCo319 01/09/1968 31/12/2022
Open-loop
i0a0 49R1 v4 surface TCo199 01/09/1968 31/12/2022
Open-loop
i0iz 49R1 v4 surface TCo319 01/09/1968 31/12/2022 i09w Soil moisture + snow analysis
i0j0 49R1 v4 surface TCo199 01/09/1968 31/12/2022 i0a0 Soil moisture + snow analysis
i0uq 49R1 v4 surface TCo319 03/01/1939 31/12/2022
Open-loop
i0ur 49R1 v4 surface TCo319 03/01/1939 31/12/2022 i0uq Soil moisture + snow analysis: ERA6-Land-Pv1
i5xx 49R1 v4 surface TCo319 01/09/1982 31/12/2023 i0iz

Soil moisture + snow analysis

(CryoClim from 1982 to 2010, IMS from 2010)

6. SSA only reanalysis experiments using the revised snow DA and CryoClim assimilation

ID Cycle Type Resolution Start End Control Description SST
i790 48R1.1 an TCo319 01/09/1968 31/08/1972
In situ observations only
i791 48R1.1 an TCo319 01/09/1972 31/08/1976
In situ observations only
i792 48R1.1 an TCo319 01/09/1976 31/08/1980
In situ observations only
i6f5 48R1.1 an TCo319 01/09/1980 31/08/1984
In situ observations only
i6ga 48R1.1 an TCo319 01/09/1984 31/08/1988
In situ + CryoClim (from 01/09/1987)
i6gb 48R1.1 an TCo319 01/09/1988 31/08/1992
In situ + CryoClim
i6gh 48R1.1 an TCo319 01/09/1992 31/08/1996
In situ + CryoClim
i6gi 48R1.1 an TCo319 01/09/1996 31/08/2000
In situ + CryoClim
i6gj 48R1.1 an TCo319 01/09/2000 31/08/2004
In situ + CryoClim
i6gk 48R1.1 an TCo319 01/09/2004 31/08/2008
In situ + CryoClim ↑HadISST
i6gl 48R1.1 an TCo319 01/09/2008 31/08/2012

In situ + CryoClim (until 31/08/2010)

In situ + IMS (from 01/09/2010)

 ↓OSTIA
i6q2 48R1.1 an TCo319 01/09/2008 31/08/2012

Without snow DA (to compare with i6gl)
i6gm 48R1.1 an TCo319 01/09/2012 31/08/2016
In situ + IMS
i6gn 48R1.1 an TCo319 01/09/2016 31/08/2020
In situ + IMS
  • These experiments are set up based on "eras/4616". (Thanks to Dinand!)
  • Here are details of the eras experiment: IFS Development for ERA6

7. A test for snow analysis in the SEKF

ID Cycle Type Resolution Start End Control Description Result
i5eq 48R1.1 an TCo399 01/12/2021 01/12/2021 hzx1 Implement snow analysis in the SEKF

8. A test for assimilating SNOTEL observations in the snow analysis

ID Cycle Type Resolution Start End Control Description Result
i6zq 49R1 v11 an TCo799 01/09/2023 30/06/2024
Control without SNOTEL
i6zr 49R1 v11 an TCo799 01/09/2023 30/06/2024 i6zq Assimilate SNOTEL observations