AIFS, IFS and OpenIFS

OpenIFS-SCM Welcome to the Single-Column Model (SCM) OpenIFS model forum! This is your hub for asking questions, and engaging with fellow users of the SCM model. Be sure to check the instructions below to get started! AIFS Welcome to the AIFS forum! This is your hub for asking questions, and engaging with fellow users of the AIFS model. Be sure to check the instructions below to get started! OpenIFS Data Hub Welcome to the OpenIFS Data Hub forum! This is your place for asking questions, and engaging with fellow users of the facility to generate initial experiment data and other data products for OpenIFS forecast model experiments. Be sure to check the instructions below to get started! OpenIFS Welcome to the OpenIFS forum! This is your hub for asking questions, and engaging with fellow users of the OpenIFS models. Be sure to check the instructions below to get started! IFS Welcome to the IFS forum! This is your hub for asking questions, and engaging with fellow users of the IFS model. Be sure to check the instructions below to get started!

Topic	Replies	Views	Activity
About the AIFS, IFS and OpenIFS category AIFS, IFS and OpenIFS	1	180	1 July 2025
Does switching variables from prognostic to forcing necessitate training from scratch? AIFS, IFS and OpenIFS aifs , ai-ml-based-predictions	0	5	12 February 2026
Seeking architecture and training configuration advice for 1° model AIFS, IFS and OpenIFS aifs , ai-ml-based-predictions , era5	0	7	12 February 2026
snow depth (and density) threshold for 100 % snow coverage: inconsistency between documentation on ECMWF charts and cy49r1 physical processes documentation ? IFS	0	9	10 February 2026
Reading and regridding from cloud-based datasets AIFS, IFS and OpenIFS anemoi , era5	0	37	2 February 2026
I am sharing 'Climate_Tipping_Point_Network_Copernicus_ECMWF_Contribution (1)' with you OpenIFS openifs-40r1	0	17	1 February 2026
Skin-temp vs SST vs soil temp OpenIFS openifs-surface-boundary , openifs-physics-parametrizations , openifs-43r3	3	87	23 January 2026
Question on cold ocean / warm layer parameterizations in operational IFS AIFS, IFS and OpenIFS era5	0	19	23 January 2026
OIFS does not iterate date in output file, only time OpenIFS openifs-long-runs	4	61	19 January 2026
Difficulties running inference with AIFS v1.1 AIFS, IFS and OpenIFS aifs	0	52	17 December 2025
AIFS Hindcasts/Re-forecasts AIFS, IFS and OpenIFS	0	47	11 December 2025
Initial state perturbations for ensemble forecasting (OpenIFS-OpenEPS) OpenIFS Data Hub openifs-48r1	1	33	8 December 2025
503 Slowdown errors for requests to s3://ecmwf-forecasts AIFS, IFS and OpenIFS ecmwf_open-data	2	79	18 November 2025
AIFS ENS TC tracks AIFS, IFS and OpenIFS	4	264	23 October 2025
Publishing toolchain-only CI build & Apptainer workflow for OpenIFS 48r1 AIFS, IFS and OpenIFS	0	19	9 October 2025
libdwarf_sladv.DP.so: undefined reference to 'intf__setup_'、‘‘inf__needs_nabla_’、'intf__execute_' OpenIFS openifs-48r1	0	14	30 September 2025
Issue with running tests and locating results in the new IFStest version IFS	1	44	29 September 2025
Data licensing change for some OpenIFS Data Hub products OpenIFS Data Hub openifs-initial-data , openifs-data-hub	2	126	2 September 2025
Soil temperature representation in AIFS v1 and precipitation results AIFS, IFS and OpenIFS aifs , era5-land	0	56	11 August 2025
Issue with AIFS AIFS aifs	3	240	8 August 2025
New Data Hub feature: Email notifications OpenIFS Data Hub openifs-data-hub	0	38	15 May 2025
New release: Single-column model experiment data now available from the Data Hub OpenIFS Data Hub scm-initial-data , openifs-initial-data , scm-48r1 , openifs-data-hub	0	35	6 August 2025
Timesteps in running OpenIFS cy48r1 with Tco1279L137 resolution OpenIFS	1	60	1 August 2025
QBO tuning via GGAUSSB with OpenIFS 43r3 OpenIFS	0	38	30 July 2025
AIFS ensemble model AIFS, IFS and OpenIFS aifs	4	125	8 July 2025
Output of grib variables 121 and 122 causes openIFS to fail OpenIFS openifs-40r1 , openifs-configuration-and-namelists , openifs-model-output	9	54	1 July 2025
AIFS ENS 2024 history AIFS, IFS and OpenIFS aifs	3	76	24 June 2025
AIFS expanded products AIFS, IFS and OpenIFS	1	66	24 June 2025
AIFS Historical Archive and Hindcasts? AIFS, IFS and OpenIFS	3	218	3 June 2025
Setting VMAX1 & 2 in a namelist? OIFS 48r1 does not run in T1279 AIFS, IFS and OpenIFS	0	28	30 May 2025