# C3S - Access and Login

**URL:** https://forum.ecmwf.int/c/access-and-login/c3s-access-and-login/11.md?page=2

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**Page:** 3

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## [Error while downloading CMIP6](https://forum.ecmwf.int/t/error-while-downloading-cmip6/1022)

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**Author:** [@Jenncy\_Villamizar](https://forum.ecmwf.int/u/Jenncy_Villamizar)\
**Replies:** 2\
**Last updated:** [1 December 2021 11:56 UTC](https://forum.ecmwf.int/t/error-while-downloading-cmip6/1022 "2021-12-01T11:56:00Z")

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Hi, I have tried to download the near-surface wind speed variable in the temporal range 2011-01-01 to 2070-12-31, but the download fails and shows me the following error: on other occasions, I have already downloade…

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## [CMIP6 requests remain in queue](https://forum.ecmwf.int/t/cmip6-requests-remain-in-queue/1598)

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**Author:** [@Rutger\_Dankers](https://forum.ecmwf.int/u/Rutger_Dankers)\
**Replies:** 0\
**Last updated:** [22 October 2021 07:04 UTC](https://forum.ecmwf.int/t/cmip6-requests-remain-in-queue/1598 "2021-10-22T07:04:35Z")

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Hi In the past week or so I have been unable to download CMIP6 data. Requests remain queued indefinitely with no reason given. Is this a known problem? Thanks! Rutger

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## [Where is the "Climate hazards data to prepare financial institutions for the future" dataset?](https://forum.ecmwf.int/t/where-is-the-climate-hazards-data-to-prepare-financial-institutions-for-the-future-dataset/1162)

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**Author:** [@Silvia\_Villapun](https://forum.ecmwf.int/u/Silvia_Villapun)\
**Replies:** 0\
**Last updated:** [17 August 2021 08:43 UTC](https://forum.ecmwf.int/t/where-is-the-climate-hazards-data-to-prepare-financial-institutions-for-the-future-dataset/1162 "2021-08-17T08:43:36Z")

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I read on the webpage that The dataset will be available in the CDS by late 2020 but when I check the CDS datasets I cannot find a dataset with this name. Does someone know if it is already released, and if this is the c…

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## [Model levels on CDS disks](https://forum.ecmwf.int/t/model-levels-on-cds-disks/847)

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**Author:** [@Mani\_Mahdinia](https://forum.ecmwf.int/u/Mani_Mahdinia)\
**Replies:** 4\
**Last updated:** [11 August 2021 02:02 UTC](https://forum.ecmwf.int/t/model-levels-on-cds-disks/847 "2021-08-11T02:02:41Z")

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Hello everbody, I need to access ERA5 reanalysis, model levels (1/to/137), within some past times (say 1 Jan, 2015). On the webpage of Climate Data Store (CDS) API Keywords only 'reanalysis-era5-complete' (on MARS) seem…

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## [Why it is much slower downloading from 'reanalysis-era5-complete'?](https://forum.ecmwf.int/t/why-it-is-much-slower-downloading-from-reanalysis-era5-complete/1471)

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**Author:** [@Xiaobo\_Yang](https://forum.ecmwf.int/u/Xiaobo_Yang)\
**Replies:** 34\
**Last updated:** [2 June 2021 15:38 UTC](https://forum.ecmwf.int/t/why-it-is-much-slower-downloading-from-reanalysis-era5-complete/1471 "2021-06-02T15:38:32Z")

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As title, when compared with downloading other ERA5 datasets from the CDS. This is because data request for 'reanalysis-era5-complete' will retrieve data from ECMWF MARS, a tape based archiving system. While other ERA5…

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## [Downloading the daily mean of ERA5](https://forum.ecmwf.int/t/downloading-the-daily-mean-of-era5/903)

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**Author:** [@Tim\_suny](https://forum.ecmwf.int/u/Tim_suny)\
**Replies:** 4\
**Last updated:** [24 March 2021 13:06 UTC](https://forum.ecmwf.int/t/downloading-the-daily-mean-of-era5/903 "2021-03-24T13:06:28Z")

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Hello, I am interested in downloading the ERA-5 daily-mean data. I am downloading the hourly data first using the following script , then I calculate the daily means. I am wondering if there is a way to download the …

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## [Accessing data that has not been re-analyzed](https://forum.ecmwf.int/t/accessing-data-that-has-not-been-re-analyzed/862)

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**Author:** [@Gizem\_Boztas](https://forum.ecmwf.int/u/Gizem_Boztas)\
**Replies:** 0\
**Last updated:** [19 November 2020 12:00 UTC](https://forum.ecmwf.int/t/accessing-data-that-has-not-been-re-analyzed/862 "2020-11-19T12:00:54Z")

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Hello, I need total column water vapor data before reanalysis. How can I access them? Also, when I want to download data from C3S, if I remove re-analysis as product type and select one of the others, can I access data…

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## [Correct MARS request for ERA5.1](https://forum.ecmwf.int/t/correct-mars-request-for-era5-1/902)

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**Author:** [@Tom\_Akkermans](https://forum.ecmwf.int/u/Tom_Akkermans)\
**Replies:** 2\
**Last updated:** [19 May 2020 07:53 UTC](https://forum.ecmwf.int/t/correct-mars-request-for-era5-1/902 "2020-05-19T07:53:26Z")

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Hi, Given the recent ERA update to ERA5.1, i wanted to know if my new MARS request is correct. Below the parameters I supplied, the only change compared to my earlier script is parameter DATASET which i changed to era5…

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## [C3S seasonal hindcasts 2017-2018](https://forum.ecmwf.int/t/c3s-seasonal-hindcasts-2017-2018/1331)

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**Author:** [@Valentina\_Pavan](https://forum.ecmwf.int/u/Valentina_Pavan)\
**Replies:** 1\
**Last updated:** [14 May 2020 12:26 UTC](https://forum.ecmwf.int/t/c3s-seasonal-hindcasts-2017-2018/1331 "2020-05-14T12:26:01Z")

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Would it be possible to add to the C3S archive also 2017 and 2018 multi-model seasonal hindcasts so as to give access to a complete set covering all years from first reforecast (1993) to last forecast (present time)? Thi…

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## [List of available datasets on the CDS](https://forum.ecmwf.int/t/list-of-available-datasets-on-the-cds/1337)

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**Author:** [@Matteo\_De\_Felice](https://forum.ecmwf.int/u/Matteo_De_Felice)\
**Replies:** 2\
**Last updated:** [2 March 2020 12:20 UTC](https://forum.ecmwf.int/t/list-of-available-datasets-on-the-cds/1337 "2020-03-02T12:20:10Z")

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Is there any possibility to show a list of all the datasets on the CDS ordered by date (from the most recent to the oldest one)?

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## [ERA5 reanalysis data mixed with ERA5 ensemble mean data](https://forum.ecmwf.int/t/era5-reanalysis-data-mixed-with-era5-ensemble-mean-data/1203)

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**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\
**Replies:** 0\
**Last updated:** [18 February 2020 09:32 UTC](https://forum.ecmwf.int/t/era5-reanalysis-data-mixed-with-era5-ensemble-mean-data/1203 "2020-02-18T09:32:42Z")

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Mixed CDS requests for ERA5 Reanalysis data and ERA5 ensemble mean data fail due to the different spatial grid and temporal frequency. Suggestion is to ask for these data in separate requests. For more details about ERA…

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## [Why can I only select 1 day of Seasonal Forecast data from the CDS?](https://forum.ecmwf.int/t/why-can-i-only-select-1-day-of-seasonal-forecast-data-from-the-cds/1142)

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**Author:** [@Anabelle](https://forum.ecmwf.int/u/Anabelle)\
**Replies:** 1\
**Last updated:** [15 January 2020 14:55 UTC](https://forum.ecmwf.int/t/why-can-i-only-select-1-day-of-seasonal-forecast-data-from-the-cds/1142 "2020-01-15T14:55:44Z")

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While downloading data from ECMWF originating center, we can select only day 1. I need forecast for all days in hindcast period. Day shows start date day.

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## [What is the best (and quickest) way to download the full archive (from 1979) of runoff from reanalysis-era5-single-levels?](https://forum.ecmwf.int/t/what-is-the-best-and-quickest-way-to-download-the-full-archive-from-1979-of-runoff-from-reanalysis-era5-single-levels/789)

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**Author:** [@Michael\_Shaw](https://forum.ecmwf.int/u/Michael_Shaw)\
**Replies:** 5\
**Last updated:** [23 December 2019 11:21 UTC](https://forum.ecmwf.int/t/what-is-the-best-and-quickest-way-to-download-the-full-archive-from-1979-of-runoff-from-reanalysis-era5-single-levels/789 "2019-12-23T11:21:36Z")

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I try to do the following in a simply little python script, and the API (or queue) takes days to get a month of runoff and sometimes throws errors or stops incomplete. Is it because, in part, much of this data is offlin…

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## [Where to find daily diabatic heating rates in C3S reanalysis data](https://forum.ecmwf.int/t/where-to-find-daily-diabatic-heating-rates-in-c3s-reanalysis-data/1589)

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**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\
**Replies:** 0\
**Last updated:** [24 October 2019 15:11 UTC](https://forum.ecmwf.int/t/where-to-find-daily-diabatic-heating-rates-in-c3s-reanalysis-data/1589 "2019-10-24T15:11:13Z")

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In ERA-Interim: The net temperature tendency from the parametrised processes (accumulated from the beginning of the forecast) is available on model levels from the twice daily forecasts at forecast steps 3, 6, 9, 12 hou…

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## [ERA5: how download data between 1 hPa to 0.01 hPa](https://forum.ecmwf.int/t/era5-how-download-data-between-1-hpa-to-0-01-hpa/1198)

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**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\
**Replies:** 0\
**Last updated:** [17 October 2019 13:42 UTC](https://forum.ecmwf.int/t/era5-how-download-data-between-1-hpa-to-0-01-hpa/1198 "2019-10-17T13:42:28Z")

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ERA5 was produced using 4D-Var data assimilation in CY41R2 of ECMWF’s Integrated Forecast System (IFS), with 137 hybrid sigma/pressure (model) levels in the vertical, with the top level at 0.01 hPa. These are hybrid pres…

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## [What is the data policy to use the Climate Data Store (CDS) datasets?](https://forum.ecmwf.int/t/what-is-the-data-policy-to-use-the-climate-data-store-cds-datasets/1065)

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**Author:** [@Kevin\_Marsh](https://forum.ecmwf.int/u/Kevin_Marsh)\
**Replies:** 1\
**Last updated:** [24 September 2019 10:52 UTC](https://forum.ecmwf.int/t/what-is-the-data-policy-to-use-the-climate-data-store-cds-datasets/1065 "2019-09-24T10:52:58Z")

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I would like to use CDS datasets; what licences apply to these data?

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## [The Quality Assessment page attached to each dataset is not displayed when browsing the catalogue overviews. What is the reason for this?](https://forum.ecmwf.int/t/the-quality-assessment-page-attached-to-each-dataset-is-not-displayed-when-browsing-the-catalogue-overviews-what-is-the-reason-for-this/1820)

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**Author:** [@Kevin\_Marsh](https://forum.ecmwf.int/u/Kevin_Marsh)\
**Replies:** 1\
**Last updated:** [24 September 2019 10:51 UTC](https://forum.ecmwf.int/t/the-quality-assessment-page-attached-to-each-dataset-is-not-displayed-when-browsing-the-catalogue-overviews-what-is-the-reason-for-this/1820 "2019-09-24T10:51:00Z")

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I am trying to find quality assessments for CDS datasets - where are they?

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## [Trouble connecting to download source? Using downloaded file CDS API ERA5](https://forum.ecmwf.int/t/trouble-connecting-to-download-source-using-downloaded-file-cds-api-era5/925)

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**Author:** [@Rachel\_Gaal](https://forum.ecmwf.int/u/Rachel_Gaal)\
**Replies:** 5\
**Last updated:** [14 August 2019 14:29 UTC](https://forum.ecmwf.int/t/trouble-connecting-to-download-source-using-downloaded-file-cds-api-era5/925 "2019-08-14T14:29:11Z")

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Hi there, I'm downloading a small test subset of total precip from ERA5 through CDS API. I think that my download is working properly, however, when I try to use the netcdf4 dataset command to open the file through opend…

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## [Cmip6](https://forum.ecmwf.int/t/cmip6/1210)

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**Author:** [@Joseph\_Janssen](https://forum.ecmwf.int/u/Joseph_Janssen)\
**Replies:** 1\
**Last updated:** [19 July 2019 23:39 UTC](https://forum.ecmwf.int/t/cmip6/1210 "2019-07-19T23:39:47Z")

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Hi, is there an ETA on when CMIP6 will arrive on this site? Thank you for your time, Joe

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