Detailed model description

Page containing details for all model configurations available in S2S since the project start => CNRM model description

Overview of the model changes

Model version

Implement. date in S2S

Time range

Resolution

Ens. Size

Frequency

Re-forecasts

Rfc period

Rfc frequency

Rfc size

Ocean resolutionActive Sea IceRemarks

CNRM-CM 6.1

22/10/2020 

d 0-47

T359 L91

25weeklyfixed

1993-2017

(model version date 01/07/2019)

every 7 days

(starting from 31/12/1992 *2)

100.25° L75yes

additional ocean parameters added since  

CNRM-CM 6.0

01/03/2016 

d 0-32

T255 L91

51weeklyfixed

1993-2014

(model version date 01/12/2014)

4/month

(always on the 1st, 8th, 15th and 22nd *2)

15

1° L42

yes

Description of the main changes

CNRM-CM 6.1

  • operational since  22/10/2020 (included)
    • the corresponding fixed reforecast set is with the model version date 2019-07-01
  • the forecast length was prolonged to 47 days (from 32)
  • the ensemble size was decreased to 25 (from 51) for the real-time data and to 10 (from 15) for the reforecasts
  • Additional parameters added:
    • CAPE
    • Skin Temperature
    • Soil Moisture (top 20 and 100 cm)
    • Soil temperature (top 20 and 100 cm)
    • Surface water runoff
    • 9 ocean fields (Average potential temperature in the upper 300 m, Average salinity in the upper 300 m, Depth of 20 C isotherm, Eastward sea water velocity, Northward sea water velocity, Mixed layer depth, Sea-ice thickness, Sea surface height, Sea water practical salinity)
    • 10 metre wind U / V is archived now as 6-hourly in contrary to once per day before
  • No-longer available parameters:
    • Potential vorticity
    • For all pressure level fields : level 1000 hPa will be missing
    • For vertical velocity only, 10 hPa level will be missing in addition to level 1000 hPa

CNRM-CM 6.0