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! 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! 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!

Topic	Replies	Views	Activity
About the AIFS, IFS and OpenIFS category AIFS, IFS and OpenIFS	1	319	1 July 2025
Running OpenIFS with TCo resolution OpenIFS openifs-configuration-and-namelists	2	42	6 October 2026
Hourly relaxation files from Data Hub OpenIFS Data Hub openifs-data-hub , openifs-nudged-configuration	3	83	5 October 2026
Data licensing change for some OpenIFS Data Hub products OpenIFS Data Hub openifs-initial-data , openifs-data-hub	4	231	28 September 2026
Open data - 9 km free subset AIFS, IFS and OpenIFS	3	86	18 September 2026
Ecmwf-opendata source="azure" failing – Planetary Computer SAS token endpoint certificate error AIFS, IFS and OpenIFS	0	24	15 September 2026
AIFS static fields timestamp AIFS aifs	0	45	1 September 2026
Increase in TC genesis tracks in stream=oper, type=tf since IFS Cycle 50r1 AIFS, IFS and OpenIFS cycle-upgrade	3	126	31 August 2026
AIFS V3 Fields and Levels? AIFS	0	55	24 August 2026
Possible inconsistency in stormIdentifier assignment in operational tropical cyclone BUFR products (IFS and AIFS-ENS) AIFS, IFS and OpenIFS ifs , ecmwf_open-data	2	75	30 July 2026
snow depth (and density) threshold for 100 % snow coverage: inconsistency between documentation on ECMWF charts and cy49r1 physical processes documentation ? IFS	1	74	27 July 2026
AIFS-ENS v2 inputs: is w on pressure levels required or not? AIFS, IFS and OpenIFS aifs	0	43	17 July 2026
Strange wind speed result on pressure level around Polar point OpenIFS openifs-model-output	6	113	18 June 2026
TCo2559 test run segmentation fault (model settings) OpenIFS	1	55	13 June 2026
Question for hybrid linear ozone scheme in IFS IFS	1	54	13 June 2026
Python interface with client set to Google AIFS, IFS and OpenIFS ecmwf_open-data	1	134	20 May 2026
AIFS Single v2 and AIFS ENS v2 AIFS api , aifs , ecmwf_open-data	2	220	14 May 2026
503 Slowdown errors for requests to s3://ecmwf-forecasts AIFS ecmwf_open-data	6	447	12 May 2026
Inference with AIFS-ENS v.1 on S2S Timescales AIFS aifs	1	149	29 April 2026
AIFS ENS TC tracks AIFS aifs	8	554	27 April 2026
Reading and regridding from cloud-based datasets AIFS anemoi , era5	2	173	6 April 2026
Does switching variables from prognostic to forcing necessitate training from scratch? AIFS aifs , ai-ml-based-predictions	2	97	6 April 2026
AIFS Hindcasts/Re-forecasts AIFS aifs	1	171	31 March 2026
JASMIN Installation - Test stuck at 458 OpenIFS openifs-48r1	5	119	31 March 2026
Soil temperature representation in AIFS v1 and precipitation results AIFS aifs , era5-land	1	118	18 March 2026
TC trajectory data for 50r1 AIFS, IFS and OpenIFS	1	93	13 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	75	10 March 2026
JASMIN Installation - Floating point error on running example forecast OpenIFS openifs-48r1	1	68	9 March 2026
Seeking architecture and training configuration advice for 1° model AIFS aifs , ai-ml-based-predictions , era5	0	71	12 February 2026
I am sharing 'Climate_Tipping_Point_Network_Copernicus_ECMWF_Contribution (1)' with you OpenIFS openifs-40r1	0	50	1 February 2026