# \#carra2
**URL:** https://forum.ecmwf.int/tag/carra2/285.md
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## [CARRA2 - user information: x-y grid size may be different for different variables](https://forum.ecmwf.int/t/carra2-user-information-x-y-grid-size-may-be-different-for-different-variables/15169)
**Author:** [@Andreas\_Walbroel](https://forum.ecmwf.int/u/Andreas_Walbroel)\
**Replies:** 0\
**Last updated:** [16 July 2026 08:02 UTC](https://forum.ecmwf.int/t/carra2-user-information-x-y-grid-size-may-be-different-for-different-variables/15169 "2026-07-16T08:02:49Z")
Hi, this is just an information to new users of CARRA2. When downloading sub-daily data from the Climate Data Store as netCDF files, the x-y grid of the Polar Stereographic projection may have a different size dependin…
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## [CARRA2/CARRA data confusion total precipitation](https://forum.ecmwf.int/t/carra2-carra-data-confusion-total-precipitation/15013)
**Author:** [@Jayne\_Doshi](https://forum.ecmwf.int/u/Jayne_Doshi)\
**Replies:** 2\
**Last updated:** [27 May 2026 12:27 UTC](https://forum.ecmwf.int/t/carra2-carra-data-confusion-total-precipitation/15013 "2026-05-27T12:27:57Z")
Hello, Please urgently help me anyone: CARRA data which all forecast and time hours i need to download in order to convert to the daily data total precipitation. Copernicus also provide daily calculated total precipita…
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## [CARRA2 full historical period from 1986 to 2025 now available on the CDS](https://forum.ecmwf.int/t/carra2-full-historical-period-from-1986-to-2025-now-available-on-the-cds/14998)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\
**Replies:** 0\
**Last updated:** [27 May 2026 10:00 UTC](https://forum.ecmwf.int/t/carra2-full-historical-period-from-1986-to-2025-now-available-on-the-cds/14998 "2026-05-27T10:00:34Z")
We are happy to inform you that the Copernicus pan-Arctic Regional Reanalysis (CARRA2) dataset had been extended to a full historical Arctic climate monitoring dataset covering the period 1986-2025 and it is now availabl…
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## [New datasets family published in CDS: Copernicus pan-Arctic regional reanalysis (CARRA2)](https://forum.ecmwf.int/t/new-datasets-family-published-in-cds-copernicus-pan-arctic-regional-reanalysis-carra2/14483)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\
**Replies:** 0\
**Last updated:** [10 December 2025 09:45 UTC](https://forum.ecmwf.int/t/new-datasets-family-published-in-cds-copernicus-pan-arctic-regional-reanalysis-carra2/14483 "2025-12-10T09:45:42Z")
We are pleased to announce that the first batch of the second-generation Copernicus Arctic Regional Reanalysis called Copernicus pan-Arctic Regional Reanalysis (CARRA2) datasets have been published in the Climate Data St…