Versions Compared

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

...

Technical details of the new cycle

Note

Please note: 3 hourly analysis fields now available

With the implementation of the IFS Cycle 50r1 analysis fields will be available every 3 hours, at times 0 UTC, 3 UTC ... 18 UTC and 21 UTC.
(Previously, analysis fields were available only every 6 hours, at times 0 UTC, 6 UTC, 12 UTC and 18 UTC.) 

Note

Please note: Hourly forecast fields now available

With the implementation of the IFS Cycle 50r1 model level and pressure level forecast fields will be available every hourly step at 0, 1, 2 ... 119 and 120.
(Previously, only surface level forecast fields were available every hourly step).

Change to GRIB encoding

The GRIB model identifiers (generating process identification number) for cycle 50r1 will be changed as follows:

generatingProcessIdentifier

GRIB 1

Section 1

Octets

GRIB 2

Section 4

Octets

ecCodes key 

Component

Model identifier

49r1

50r1

6

 14  

generatingProcessIdentifier

Atmospheric model

158

161

6

 14  

generatingProcessIdentifier

Ocean wave model

106

109

6

14

soil moisture model

146

146

For all parameters in GRIB 2 the Master Tables Version Number will be changed as follows:

...

Note
iconfalse

The CAMS operational ECMWF data portal (aux.ecmwf.int; SFTP/FTP/HTTPS data access) will serve the most recent 3 days of test data, once the e-suite is running in near-real-time, in the directories "/DATA/CAMS_GLOBAL_TEST" and "/DATA/CAMS_EUROPE_BC_TEST" for global and regional boundary condition data, respectively.

In addition, surface level fields (model level 137) will be provided as individual files in the "/DATA/CAMS_GLOBAL_ADDITIONAL_TEST" directory. 

Users wanting to access the output from the current test system for a longer period can access the data from <> 05-2025 onwards directly on MARS or through the Atmosphere Data Store. More details can be found here: Accessing CAMS 50r1 test data.

...