# CARRA2/CARRA data confusion total precipitation

**URL:** <https://forum.ecmwf.int/t/carra2-carra-data-confusion-total-precipitation/15013>\
**Category:** C3S - Datasets and Usage\
**Tags:** c3s, carra, carra2\
**Created:** [26 May 2026 17:26 UTC](https://forum.ecmwf.int/t/carra2-carra-data-confusion-total-precipitation/15013 "2026-05-26T17:26:57Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Jayne\_Doshi](https://forum.ecmwf.int/letter_avatar_proxy/v4/letter/j/278dde/32.png) [@Jayne\_Doshi](https://forum.ecmwf.int/u/Jayne_Doshi)\
**Post date:** [26 May 2026 17:26 UTC](https://forum.ecmwf.int/t/carra2-carra-data-confusion-total-precipitation/15013/1 "2026-05-26T17:26:58Z")

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Hello, Please urgently help me anyone:

1. CARRA data which all forecast and time hours i need to download in order to convert to the daily data total precipitation.
2. Copernicus also provide daily calculated total precipitation but it has a lead time of 6 hrs in the time variable.  
Also is there any way quick to download the data other then the API request one. I wish there was an FTP server from where you can download everything in one go.

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**Author:** ![Andras\_Horanyi](https://forum.ecmwf.int/letter_avatar_proxy/v4/letter/a/ecd19e/32.png) [@Andras\_Horanyi](https://forum.ecmwf.int/u/Andras_Horanyi)\
**Post date:** [27 May 2026 11:42 UTC](https://forum.ecmwf.int/t/carra2-carra-data-confusion-total-precipitation/15013/2 "2026-05-27T11:42:25Z")

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Dear Jayne,

Thanks for your questions, hereafter see some information and hints.

In general you can find information how to compute precipitation amount from the CARRA dataset at [The use of precipitation information from the Copernicus Arctic Regional Reanalysis (CARRA) - Copernicus Knowledge Base - ECMWF Confluence Wiki](https://confluence.ecmwf.int/pages/viewpage.action?pageId=338485814)

We have also daily/monthly data, which already makes the computation for you and provides daily/monthly precipitation amounts.

For CARRA1 (two European Arctic domain): [Arctic regional reanalysis daily and monthly data from 1991 to present](https://cds.climate.copernicus.eu/datasets/reanalysis-carra-means?tab=overview)

For CARRA2 (pan-Arctic, i.e. full Arctic coverage): [pan-Arctic regional reanalysis daily and monthly data from 1986 to present](https://cds.climate.copernicus.eu/datasets/reanalysis-pan-carra-means?tab=overview)

I hope it helps, thank you, best regards

```auto
                                  Andras Horanyi

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**Author:** ![Jayne\_Doshi](https://forum.ecmwf.int/letter_avatar_proxy/v4/letter/j/278dde/32.png) [@Jayne\_Doshi](https://forum.ecmwf.int/u/Jayne_Doshi)\
**Post date:** [27 May 2026 12:27 UTC](https://forum.ecmwf.int/t/carra2-carra-data-confusion-total-precipitation/15013/3 "2026-05-27T12:27:57Z")

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Thank you so much. Really thank you. I was not sure whether i was doing it right or not. Actually I wanted daily only but the issue is that the one uploaded for CARRA1 and CARRA2 is with 6hrs UTC time ahead. I wanted 0 UTC time. So am I correct I need to download hourly as explained on wiki page and then get it.