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(follow the model version links below for more details)

 

CY43R3

CY43R1

  • changes include increased ocean model resolution to 1/4 degree and active sea-ice
  • operational since  22/11/2016 (included)

CY41R2

  • operational from  8/03/2016 (included) to 22/11/2016 (excluded)

CY41R1

  • changes include extension of re-forecast ensemble size to 11 twice-weekly and forecast length to 46 days
  • operational from 14/05/2015 (included) to 8/03/2016 (excluded)

CY40R1

  • operational before 14/05/2015  (excluded)

 

 

Implementation

Date in S2S

 Model version
Time range
Atmosphere
Resolution
Ens. Size
Frequency
Re-forecasts
Rfc length
Rfc frequency
Rfc size

Ocean

Resolution

Active Sea Ice
1/1/2015CY40R1d 0-32

32 km  up to day 10

64 km after day 10

51

2/week

Mon/Thu

on the flypast 20 years

once a week

(Thu real-time)

5 1 degreeNo
14/05/2015CY41R1d 0-46

32 km  up to day 10

64 km after day 10
51

2/week

Mon/Thu
on the flypast 20 years

2/week

(Mon/Thu real time)

111 degreeNo
08/03/2016CY41R2d 0-46

16 km  up to day 15

31 km after day 15
51

2/week

Mon/Thu
on the flypast 20 years

2/week

(Mon/Thu real time)
111 degreeNo
22/11/2016CY43R1d 0-46

16 km  up to day 15

31 km after day 15
51

2/week

Mon/Thu
on the flypast 20 years

2/week

(Mon/Thu real time)
111/4 degreeYes

11/07/2017

CY43R3d 0-46

16 km  up to day 15

31 km after day 15
51

2/week

Mon/Thu
on the flypast 20 years

2/week

(Mon/Thu real time)
111/4 degreeYes

The text in red indicates changes to the model configuration (in addition to model physics) introduced with a new version of the ECMWF model

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