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! 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! 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! 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 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!

Topic	Replies	Views	Activity
About the AIFS, IFS and OpenIFS category AIFS, IFS and OpenIFS	1	221	1 July 2025
Reading and regridding from cloud-based datasets AIFS anemoi , era5	2	88	6 April 2026
Does switching variables from prognostic to forcing necessitate training from scratch? AIFS aifs , ai-ml-based-predictions	2	42	6 April 2026
AIFS Hindcasts/Re-forecasts AIFS aifs	1	96	31 March 2026
JASMIN Installation - Test stuck at 458 OpenIFS openifs-48r1	5	42	31 March 2026
Inference with AIFS-ENS v.1 on S2S Timescales AIFS aifs	0	34	30 March 2026
Soil temperature representation in AIFS v1 and precipitation results AIFS aifs , era5-land	1	76	18 March 2026
TC trajectory data for 50r1 AIFS, IFS and OpenIFS	1	37	13 March 2026
AIFS ENS TC tracks AIFS	6	349	12 March 2026
Hourly relaxation files from Data Hub OpenIFS Data Hub openifs-data-hub , openifs-nudged-configuration	2	33	12 March 2026
Snowfall variable available on "ERA5 hourly data on single levels from 1940 to present" but not on "Complete ERA5 global atmospheric reanalysis"? AIFS era5 , aifs	2	24	10 March 2026
JASMIN Installation - Floating point error on running example forecast OpenIFS openifs-48r1	1	18	9 March 2026
Seeking architecture and training configuration advice for 1° model AIFS aifs , ai-ml-based-predictions , era5	0	33	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	18	10 February 2026
I am sharing 'Climate_Tipping_Point_Network_Copernicus_ECMWF_Contribution (1)' with you OpenIFS openifs-40r1	0	22	1 February 2026
Skin-temp vs SST vs soil temp OpenIFS openifs-surface-boundary , openifs-physics-parametrizations , openifs-43r3	3	110	23 January 2026
Question on cold ocean / warm layer parameterizations in operational IFS AIFS, IFS and OpenIFS era5	0	23	23 January 2026
OIFS does not iterate date in output file, only time OpenIFS openifs-long-runs	4	82	19 January 2026
Difficulties running inference with AIFS v1.1 AIFS aifs	0	72	17 December 2025
Initial state perturbations for ensemble forecasting (OpenIFS-OpenEPS) OpenIFS Data Hub openifs-48r1	1	41	8 December 2025
503 Slowdown errors for requests to s3://ecmwf-forecasts AIFS ecmwf_open-data	2	125	18 November 2025
Publishing toolchain-only CI build & Apptainer workflow for OpenIFS 48r1 AIFS, IFS and OpenIFS	0	33	9 October 2025
libdwarf_sladv.DP.so: undefined reference to 'intf__setup_'、‘‘inf__needs_nabla_’、'intf__execute_' OpenIFS openifs-48r1	0	18	30 September 2025
Issue with running tests and locating results in the new IFStest version IFS	1	49	29 September 2025
Data licensing change for some OpenIFS Data Hub products OpenIFS Data Hub openifs-initial-data , openifs-data-hub	2	152	2 September 2025
Issue with AIFS AIFS aifs	3	262	8 August 2025
New Data Hub feature: Email notifications OpenIFS Data Hub openifs-data-hub	0	40	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	38	6 August 2025
Timesteps in running OpenIFS cy48r1 with Tco1279L137 resolution OpenIFS	1	81	1 August 2025
QBO tuning via GGAUSSB with OpenIFS 43r3 OpenIFS	0	42	30 July 2025