# \#utci
**URL:** https://forum.ecmwf.int/tag/utci/70.md
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## [New dataset published in CDS: Thermal comfort indices time-series derived from ERA5 reanalysis](https://forum.ecmwf.int/t/new-dataset-published-in-cds-thermal-comfort-indices-time-series-derived-from-era5-reanalysis/14864)
**Author:** [@Anabelle](https://forum.ecmwf.int/u/Anabelle)\
**Replies:** 0\
**Last updated:** [23 April 2026 14:00 UTC](https://forum.ecmwf.int/t/new-dataset-published-in-cds-thermal-comfort-indices-time-series-derived-from-era5-reanalysis/14864 "2026-04-23T14:00:00Z")
We are pleased to announce that a new dataset has been published today, 23rd April 2026, in the Climate Data Store (CDS): This dataset is a post-processed version of the original CDS Thermal comfort indices derived fr…
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## [New C3S application published: Thermal Trace](https://forum.ecmwf.int/t/new-c3s-application-published-thermal-trace/14021)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\
**Replies:** 0\
**Last updated:** [20 August 2025 09:00 UTC](https://forum.ecmwf.int/t/new-c3s-application-published-thermal-trace/14021 "2025-08-20T09:00:57Z")
We are pleased to announce that the new C3S application Thermal Trace has been launched today, 20 August 2025: thermaltrace.climate.copernicus.eu Thermal Trace is an interactive web-application to explore heat and cold…
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## ["Unknown file format" when trying to open ERA5 UTCI dataset](https://forum.ecmwf.int/t/unknown-file-format-when-trying-to-open-era5-utci-dataset/10796)
**Author:** [@Gabriele\_Bentivoglio](https://forum.ecmwf.int/u/Gabriele_Bentivoglio)\
**Replies:** 3\
**Last updated:** [5 March 2025 17:39 UTC](https://forum.ecmwf.int/t/unknown-file-format-when-trying-to-open-era5-utci-dataset/10796 "2025-03-05T17:39:28Z")
Hi everyone, I am trying to read a netcdf file (downloaded using the code below) coming from the ER5 UTCI dataset. I am unable to read the files, both using ncview and with python. I use the same setup to open other net…
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## [UTCI data download](https://forum.ecmwf.int/t/utci-data-download/10166)
**Author:** [@Samantha\_Lavender](https://forum.ecmwf.int/u/Samantha_Lavender)\
**Replies:** 1\
**Last updated:** [27 December 2024 19:22 UTC](https://forum.ecmwf.int/t/utci-data-download/10166 "2024-12-27T19:22:48Z")
I’m having trouble downloading the UTCI dataset (Thermal comfort indices derived from ERA5 reanalysis). I managed to download a single year using the web interface but when I try to download several years it fails with U…
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## [UTCI data missing output format and extent settings](https://forum.ecmwf.int/t/utci-data-missing-output-format-and-extent-settings/7331)
**Author:** [@Koen\_Hufkens](https://forum.ecmwf.int/u/Koen_Hufkens)\
**Replies:** 2\
**Last updated:** [12 November 2024 16:57 UTC](https://forum.ecmwf.int/t/utci-data-missing-output-format-and-extent-settings/7331 "2024-11-12T16:57:28Z")
\#bug The UTCI data request page misses output format and geographic extent settings online. Using these parameters in the API however works perfectly fine, they are however not exposed and the returned request at the…
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## [ERA5-HEAT extended back to 1940](https://forum.ecmwf.int/t/era5-heat-extended-back-to-1940/1183)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\
**Replies:** 0\
**Last updated:** [27 October 2022 15:45 UTC](https://forum.ecmwf.int/t/era5-heat-extended-back-to-1940/1183 "2022-10-27T15:45:25Z")
We are pleased to announce today, 2nd November 2022, the release of the back extension of the Thermal comfort indices derived from ERA5 reanalysis dataset also known as ERA5-HEAT. Since its release in 2020, ERA5-HEAT ha…
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## [Identified issue in Thermal comfort indices derived from ERA5 reanalysis](https://forum.ecmwf.int/t/identified-issue-in-thermal-comfort-indices-derived-from-era5-reanalysis/1134)
**Author:** [@Eduardo\_Damasio-Da-C](https://forum.ecmwf.int/u/Eduardo_Damasio-Da-C)\
**Replies:** 0\
**Last updated:** [4 March 2022 16:09 UTC](https://forum.ecmwf.int/t/identified-issue-in-thermal-comfort-indices-derived-from-era5-reanalysis/1134 "2022-03-04T16:09:47Z")
An issue has been identified in the dataset Thermal comfort indices derived from ERA5 reanalysis. The issue affects the period 20210714-20220214 concerning the intermediate part of the dataset and the period 20210429-…
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## [How to Sub-region extraction of Thermal Comport Indices data by CDSAPI?](https://forum.ecmwf.int/t/how-to-sub-region-extraction-of-thermal-comport-indices-data-by-cdsapi/908)
**Author:** [@Anusha\_Warnasooriya](https://forum.ecmwf.int/u/Anusha_Warnasooriya)\
**Replies:** 1\
**Last updated:** [8 July 2021 08:32 UTC](https://forum.ecmwf.int/t/how-to-sub-region-extraction-of-thermal-comport-indices-data-by-cdsapi/908 "2021-07-08T08:32:47Z")
Thermal Comport indices derived from ERA5 reanalysis data are available for global coverage. To reduce the download time and size of data, I need extraction of data only my region. I try to download sample data by CDSAPI…
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## [Release of Universal thermal climate index and Mean radiant temperature data](https://forum.ecmwf.int/t/release-of-universal-thermal-climate-index-and-mean-radiant-temperature-data/1338)
**Author:** [@Christopher\_Barnard](https://forum.ecmwf.int/u/Christopher_Barnard)\
**Replies:** 0\
**Last updated:** [15 January 2020 10:00 UTC](https://forum.ecmwf.int/t/release-of-universal-thermal-climate-index-and-mean-radiant-temperature-data/1338 "2020-01-15T10:00:54Z")
Universal thermal comfort index (UTCI) and Mean radiant temperature (MRT) based on ERA5 Reanalysis data is now being provided by the CDS. This dataset provides modelled hourly data for a set of indices representing hum…