# Changes to CAMS global biomass burning emissions based on fire radiative power (GFAS) data availability on ADS and ECMWF Data Portal **URL:** \ **Category:** CAMS - Announcements\ **Tags:** cams, gfas, ads\ **Created:** [4 November 2025 12:00 UTC](https://forum.ecmwf.int/t/changes-to-cams-global-biomass-burning-emissions-based-on-fire-radiative-power-gfas-data-availability-on-ads-and-ecmwf-data-portal/14325 "2025-11-04T12:00:00Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![Michela](https://forum.ecmwf.int/letter_avatar_proxy/v4/letter/m/898d66/32.png) [@Michela](https://forum.ecmwf.int/u/Michela)\ **Post date:** [4 November 2025 12:00 UTC](https://forum.ecmwf.int/t/changes-to-cams-global-biomass-burning-emissions-based-on-fire-radiative-power-gfas-data-availability-on-ads-and-ecmwf-data-portal/14325/1 "2025-11-04T12:00:00Z")
As part of our continuous improvement to the CAMS service, some changes will be made to the “CAMS global biomass burning emissions based on fire radiative power (GFAS)” data available from the Atmosphere Data Store (ADS) and ECMWF Data Portal ([aux.ecmwf.int](http://aux.ecmwf.int); SFTP/FTP/HTTPS data access). These changes are due to the forthcoming expected discontinuation of MODIS. We will replace the production system with an improved GFAS processing algorithm version **1.4.2** using both MODIS (as long as the data is available) and VIIRS observations. For **ADS users** , the updates of GFAS version **1.2** data available from the catalogue [entry](https://ads.atmosphere.copernicus.eu/datasets/cams-global-fire-emissions-gfas?tab=overview) will **stop** from **04 December 2025**. An announcement will follow on when the new version of GFAS 1.4.2 will be available on the ADS. For **ECMWF Data Portal users** , from 4 December: - the GFAS daily **1.2** will be **no longer available** from the CAMS\_GFAS folder. - The CAMS\_GFAS folder will now be used to give access to the new GFAS hourly **1.4.2** data. - Users getting data from the CAMS\_GFAS\_HOURLY folder, are encouraged to migrate to the CAMS\_GFAS folder to get access to the new 1.4.2 GFAS version. For any enquiries please use the [ECMWF Support portal](https://confluence.ecmwf.int/site/support). ECMWF Support ---
**Author:** ![Michela](https://forum.ecmwf.int/letter_avatar_proxy/v4/letter/m/898d66/32.png) [@Michela](https://forum.ecmwf.int/u/Michela)\ **Post date:** [4 November 2025 21:21 UTC](https://forum.ecmwf.int/t/changes-to-cams-global-biomass-burning-emissions-based-on-fire-radiative-power-gfas-data-availability-on-ads-and-ecmwf-data-portal/14325/2 "2025-11-04T21:21:34Z")
Hi, this is a reminder that GFAS version **1.2** will **stop** on the ADS today, 04 Decemebr 2025. The new GFAS hourly **1.4.2** data is available through the ECMWF Data Portal ([aux.ecmwf.int](http://aux.ecmwf.int/); SFTP/FTP/HTTPS data access). For details on the dataset and access please see [documentation](https://confluence.ecmwf.int/x/GCLXIw). Thanks ---
**Author:** ![Michela](https://forum.ecmwf.int/letter_avatar_proxy/v4/letter/m/898d66/32.png) [@Michela](https://forum.ecmwf.int/u/Michela)\ **Post date:** [9 February 2026 11:36 UTC](https://forum.ecmwf.int/t/changes-to-cams-global-biomass-burning-emissions-based-on-fire-radiative-power-gfas-data-availability-on-ads-and-ecmwf-data-portal/14325/3 "2026-02-09T11:36:32Z")
Hi, GFAS hourly **1.4.2** data are now available from December 2025 from the [ECMWF data portal (aux.ecmwf.int; SFTP/FTP/HTTPS data access)](https://confluence.ecmwf.int/display/CKB/SFTP-FTP-HTTPS+data+access+to+CAMS+GFAS+data). For any enquiries please use the [ECMWF Support portal](https://confluence.ecmwf.int/site/support). ECMWF Support ---
**Author:** ![Konstantin\_Kuznetsov](https://forum.ecmwf.int/letter_avatar_proxy/v4/letter/k/8e7dd6/32.png) [@Konstantin\_Kuznetsov](https://forum.ecmwf.int/u/Konstantin_Kuznetsov)\ **Post date:** [16 March 2026 20:24 UTC](https://forum.ecmwf.int/t/changes-to-cams-global-biomass-burning-emissions-based-on-fire-radiative-power-gfas-data-availability-on-ads-and-ecmwf-data-portal/14325/4 "2026-03-16T20:24:04Z")
Hello ! How to get access to ECMWF Data Portal in order to get access to GFAS 1.4.2? Thank you. ---
**Author:** ![Erica\_Whiting](https://forum.ecmwf.int/letter_avatar_proxy/v4/letter/e/5f9b8f/32.png) [@Erica\_Whiting](https://forum.ecmwf.int/u/Erica_Whiting)\ **Post date:** [19 March 2026 21:58 UTC](https://forum.ecmwf.int/t/changes-to-cams-global-biomass-burning-emissions-based-on-fire-radiative-power-gfas-data-availability-on-ads-and-ecmwf-data-portal/14325/5 "2026-03-19T21:58:20Z")
There is some information at [this site](https://confluence.ecmwf.int/display/CKB/SFTP-FTP-HTTPS+data+access+to+CAMS+GFAS+data#SFTPFTPHTTPSdataaccesstoCAMSGFASdata-Useraccounts) from GFAS 1.4.1 on getting access to the ECMWF Data Portal that seems to apply for this updated version. You will have to create a ticket through the [ECMWF Support Portal](https://jira.ecmwf.int/plugins/servlet/desk/portal/1/create/202) with a few added details. This information should be posted on the GFAS 1.4.2 site as well. Best of luck! ![Screenshot 2026-03-19 at 5.26.42 PM](https://forum.ecmwf.int/uploads/default/original/2X/5/5a55981556e00f468e410a9aa210353d3f23d002.png) ---
**Author:** ![\_He](https://forum.ecmwf.int/letter_avatar_proxy/v4/letter/_/3bc359/32.png) [@\_He](https://forum.ecmwf.int/u/_He)\ **Post date:** [21 May 2026 13:01 UTC](https://forum.ecmwf.int/t/changes-to-cams-global-biomass-burning-emissions-based-on-fire-radiative-power-gfas-data-availability-on-ads-and-ecmwf-data-portal/14325/6 "2026-05-21T13:01:14Z")
Hello, I noticed that the GFAS emissions dataset has no data for the period from 2026-04-30 to 2026-05-16. Could you please clarify why this gap exists and if there is any plan to provide the missing data? Thank you! ---
**Author:** ![Michela](https://forum.ecmwf.int/letter_avatar_proxy/v4/letter/m/898d66/32.png) [@Michela](https://forum.ecmwf.int/u/Michela)\ **Post date:** [22 May 2026 18:22 UTC](https://forum.ecmwf.int/t/changes-to-cams-global-biomass-burning-emissions-based-on-fire-radiative-power-gfas-data-availability-on-ads-and-ecmwf-data-portal/14325/7 "2026-05-22T18:22:03Z")
> [@Michela](#): > > Hi, > GFAS hourly **1.4.2** data are now available from December 2025 from the [ECMWF data portal (aux.ecmwf.int; SFTP/FTP/HTTPS data access)](https://confluence.ecmwf.int/display/CKB/SFTP-FTP-HTTPS+data+access+to+CAMS+GFAS+data). > > For any enquiries please use the [ECMWF Support portal](https://confluence.ecmwf.int/site/support). > > ECMWF Support Please watch the forum for updates on the ADS. ---
**Author:** ![\_He](https://forum.ecmwf.int/letter_avatar_proxy/v4/letter/_/3bc359/32.png) [@\_He](https://forum.ecmwf.int/u/_He)\ **Post date:** [25 May 2026 03:34 UTC](https://forum.ecmwf.int/t/changes-to-cams-global-biomass-burning-emissions-based-on-fire-radiative-power-gfas-data-availability-on-ads-and-ecmwf-data-portal/14325/8 "2026-05-25T03:34:51Z")
![image](https://forum.ecmwf.int/uploads/default/original/2X/2/296fc85dc1352549161d63f6952a94ff4030278c.png) The GFAS data has no data for the period from 2026-04-30 to 2026-05-19. ---
**Author:** ![Michela](https://forum.ecmwf.int/letter_avatar_proxy/v4/letter/m/898d66/32.png) [@Michela](https://forum.ecmwf.int/u/Michela)\ **Post date:** [1 June 2026 12:34 UTC](https://forum.ecmwf.int/t/changes-to-cams-global-biomass-burning-emissions-based-on-fire-radiative-power-gfas-data-availability-on-ads-and-ecmwf-data-portal/14325/9 "2026-06-01T12:34:15Z")
Hi, please have a look now. Thanks Michela ---
**Author:** ![Michela](https://forum.ecmwf.int/letter_avatar_proxy/v4/letter/m/898d66/32.png) [@Michela](https://forum.ecmwf.int/u/Michela)\ **Post date:** [5 October 2026 15:38 UTC](https://forum.ecmwf.int/t/changes-to-cams-global-biomass-burning-emissions-based-on-fire-radiative-power-gfas-data-availability-on-ads-and-ecmwf-data-portal/14325/10 "2026-10-05T15:38:47Z")
Hi, please have a look at the latest news about GFAS data: > [@GFAS 1.4.2 data now available on the ADS](https://forum.ecmwf.int/t/gfas-1-4-2-data-now-available-on-the-ads/15351): > > Following the announcement in November 2025 of the release of CAMS global biomass burning emissions based on fire radiative power (GFAS) version 1.4.2 on the ECMWF Data Portal ([aux.ecmwf.int](http://aux.ecmwf.int); SFTP/FTP/HTTPS data access), we are pleased to announce that the data are now also available on the Atmosphere Data Store (ADS): The ADS entry will contain two GFAS versions: Version 1.2 which covers the period 2003-2025 Version 1.4.2 which covers the period from 1 January 2026 onwards. The two versio…