The CAMS IFS cycle 46R1 is based on ECMWF's IFS cycle 46R1. IFS Cycle 46r1 is an upgrade with many scientific contributions, including changes in the use of observations and in modelling. The new cycle also includes an upgrade of the vertical resolution from 60 model levels to 137 model levels.
The page will be updated as required. It was last changed on 11.04.2019.
For a record of changes made to this page please refer to Document versions.
Further information and advice regarding the upgrade can be obtained from User Support.
The planned timetable for the implementation of the cycle 46r1 is as follows:
Date | Event |
---|---|
TBC | Announcement of expected implementation date |
TBC | Implementation |
The timetable represents current expectations and may change in light of actual progress made.
IFS cycle 46r1 is going through its final testing phase.
The meteorological changes can be found on the ECMWF IFS CY46R1 page.
Assimilation
Observations
Model
Updated optical properties for aerosol. This has a small impact on the optical depth of organic matter and of sea-salt: both are less extinctive per unit mass.
The new cycle is being validated by the CAMS Validation team and the results will be presented in a validation report.
The GRIB model identifiers (generating process identification number) for cycle 43R3 will be changed as follows:
GRIB 1 Section 1 Octets | GRIB 2 Section 4 Octets | grib_api key | Component | Model ID | |
---|---|---|---|---|---|
Old | New | ||||
6 | 14 | generatingProcessIdentifier | Atmospheric model | 149 | 150 |
Ocean wave model | 114 | 115 | |||
HRES stand-alone ocean wave model | 214 | 215 |
There are no new parameters introduced with cycle 46r1.
ecCodes version 2.12.0 provides full support for the new model output parameters introduced in IFS Cycle 46r1.
Test data is available from MARS, either through direct access or through WebAPI. The CAMS operational FTP server (ECPDS) also serves daily test data in the directory "/DATA/CAMS_GLOBAL_TEST" and "/DATA/CAMS_EUROPE_BC_TEST" for global and regional boundary condition data, respectively. More details can be found here.
Date | Reason for update |
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11.04.2019 |
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