# AIFS Single Data

**URL:** <https://forum.ecmwf.int/t/aifs-single-data/11387>\
**Category:** Datasets and Usage\
**Tags:** aifs, ecmwf\_open-data\
**Created:** [15 February 2025 03:29 UTC](https://forum.ecmwf.int/t/aifs-single-data/11387 "2025-02-15T03:29:50Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![gabrielcassol](https://forum.ecmwf.int/letter_avatar_proxy/v4/letter/g/9f8e36/32.png) [@gabrielcassol](https://forum.ecmwf.int/u/gabrielcassol)\
**Post date:** [15 February 2025 03:29 UTC](https://forum.ecmwf.int/t/aifs-single-data/11387/1 "2025-02-15T03:29:50Z")

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This week, the test data for the new operational version of AIFS Single was released to the public.

When I downloaded this data, I found that it was a Gaussian grid, whereas the current version of AIFS is in a lat-lon grid, which is more ideal. My question is: is there any plan to make AIFS Single data available in lat-lon grids?

[https://confluence.ecmwf.int/display/FCST/Implementation+of+AIFS+Single+v1](https://confluence.ecmwf.int/display/FCST/Implementation+of+AIFS+Single+v1)

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**Author:** ![Emma](https://forum.ecmwf.int/letter_avatar_proxy/v4/letter/e/57b2e6/32.png) [@Emma](https://forum.ecmwf.int/u/Emma)\
**Post date:** [17 February 2025 12:12 UTC](https://forum.ecmwf.int/t/aifs-single-data/11387/2 "2025-02-17T12:12:58Z")

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Hi,  
Thanks for raising this!  
We’ve implemented a change this morning and all future data will be in lat/long grid.  
Kind regards,  
Emma

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**Author:** ![Juan\_Jose\_Bustos-Seguela](https://forum.ecmwf.int/letter_avatar_proxy/v4/letter/j/a698b9/32.png) [@Juan\_Jose\_Bustos-Seguela](https://forum.ecmwf.int/u/Juan_Jose_Bustos-Seguela)\
**Post date:** [20 February 2025 09:57 UTC](https://forum.ecmwf.int/t/aifs-single-data/11387/3 "2025-02-20T09:57:53Z")

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Hello  
I think it would be useful for comparison between IAS and IFS forecasts to have point-based products such as [ENS Meteograms](https://charts.ecmwf.int/products/opencharts_meteogram) generated with AIFS data.  
Would this be possible at this time?

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**Author:** ![Patrick\_Zippenfenig](https://forum.ecmwf.int/user_avatar/forum.ecmwf.int/patrick_zippenfenig/32/777_2.png) [@Patrick\_Zippenfenig](https://forum.ecmwf.int/u/Patrick_Zippenfenig)\
**Post date:** [21 February 2025 08:42 UTC](https://forum.ecmwf.int/t/aifs-single-data/11387/4 "2025-02-21T08:42:04Z")

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I just added `AIFS Single` to Open-Meteo! You can compare data for individual points here: [🌦️ Docs | Open-Meteo.com](https://open-meteo.com/en/docs#models=ecmwf_ifs025,ecmwf_aifs025,ecmwf_aifs025_single,gfs_seamless,icon_seamless,gem_seamless,meteofrance_seamless,ukmo_seamless)

So far, AIFS Single looks similar to the previous AIFS version but aligns a bit better with other weather models. Even solar shortwave radiation performs well, which is usually tricky to forecast. Of course, it’s still somewhat limited due to the 6-hourly steps.