# \#c3s-atlas

**URL:** https://forum.ecmwf.int/tag/c3s-atlas/95.md

[Latest](https://forum.ecmwf.int/latest.md) · [Categories](https://forum.ecmwf.int/categories.md) · [Tags](https://forum.ecmwf.int/tags.md)

---

## [Climate dataset for C3S Atlas: SPEI-6 upper/lower bounds?](https://forum.ecmwf.int/t/climate-dataset-for-c3s-atlas-spei-6-upper-lower-bounds/15253)

<div class="topic-metadata">

**Author:** [@Merijn\_van\_den\_Bosch](https://forum.ecmwf.int/u/Merijn_van_den_Bosch)\
**Replies:** 3\
**Last updated:** [28 August 2026 14:41 UTC](https://forum.ecmwf.int/t/climate-dataset-for-c3s-atlas-spei-6-upper-lower-bounds/15253 "2026-08-28T14:41:38Z")

</div>

Hello, In working with the C3S Atlas data, I find that across Member models and locations, there are negative and positive values that are exactly -/+ -8.209961. Not only are these very extreme SPEI values, they are als…

---

## [Multi-model ensembles are the standard download now?](https://forum.ecmwf.int/t/multi-model-ensembles-are-the-standard-download-now/15214)

<div class="topic-metadata">

**Author:** [@Merijn\_van\_den\_Bosch](https://forum.ecmwf.int/u/Merijn_van_den_Bosch)\
**Replies:** 4\
**Last updated:** [13 August 2026 14:14 UTC](https://forum.ecmwf.int/t/multi-model-ensembles-are-the-standard-download-now/15214 "2026-08-13T14:14:47Z")

</div>

Hello everyone, Let me preface this by saying I am not a climate scientist, but in the past, downloads from the CDS have greatly aided me. I just noticed that when looking at climate projections downloads (e.g. Gridde…

---

## [New Jupyter notebooks available in the Copernicus Interactive Climate Atlas (C3S Atlas) User Tools of the :](https://forum.ecmwf.int/t/new-jupyter-notebooks-available-in-the-copernicus-interactive-climate-atlas-c3s-atlas-user-tools-of-the/15238)

<div class="topic-metadata">

**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\
**Replies:** 0\
**Last updated:** [10 August 2026 09:30 UTC](https://forum.ecmwf.int/t/new-jupyter-notebooks-available-in-the-copernicus-interactive-climate-atlas-c3s-atlas-user-tools-of-the/15238 "2026-08-10T09:30:23Z")

</div>

We are pleased to announce that 5 new Jupyter notebooks are available for the C3S Atlas User Tools. The User Tools have been developed to enhance transparency and facilitate the reusability of the software developed to …

---

## [New version 2.5 of the Copernicus Interactive Climate Atlas viewer and related dataset](https://forum.ecmwf.int/t/new-version-2-5-of-the-copernicus-interactive-climate-atlas-viewer-and-related-dataset/15025)

<div class="topic-metadata">

**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\
**Replies:** 0\
**Last updated:** [2 June 2026 13:00 UTC](https://forum.ecmwf.int/t/new-version-2-5-of-the-copernicus-interactive-climate-atlas-viewer-and-related-dataset/15025 "2026-06-02T13:00:54Z")

</div>

We are pleased to announce that the new version (v2.5) of the Copernicus Interactive Climate Atlas (C3S Atlas) viewer and related dataset have been published on the Climate Data Store (CDS). The new version of the vie…

---

## [New version of the Copernicus Interactive Climate Atlas dataset and viewer](https://forum.ecmwf.int/t/new-version-of-the-copernicus-interactive-climate-atlas-dataset-and-viewer/12835)

<div class="topic-metadata">

**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\
**Replies:** 3\
**Last updated:** [18 August 2025 08:27 UTC](https://forum.ecmwf.int/t/new-version-of-the-copernicus-interactive-climate-atlas-dataset-and-viewer/12835 "2025-08-18T08:27:01Z")

</div>

We are pleased to announce that the new version (v2) of the Copernicus Interactive Climate Atlas (C3S Atlas) dataset and viewer has been published on 07-05-2025. Gridded dataset underpinning the Copernicus Interactive …

---

## [Scheduled maintenance of the C3S Atlas - 24 February 2025 - No access to service](https://forum.ecmwf.int/t/scheduled-maintenance-of-the-c3s-atlas-24-february-2025-no-access-to-service/11361)

<div class="topic-metadata">

**Author:** [@Anabelle](https://forum.ecmwf.int/u/Anabelle)\
**Replies:** 1\
**Last updated:** [25 February 2025 10:41 UTC](https://forum.ecmwf.int/t/scheduled-maintenance-of-the-c3s-atlas-24-february-2025-no-access-to-service/11361 "2025-02-25T10:41:53Z")

</div>

A scheduled maintenance of the Copernicus Interactive Climate Atlas (C3S Atlas) is planned on 24th February 2025, during which day, the C3S Atlas will be out of service and therefore not available. Access to the service…

---

## [ConnectionError requesting datasets](https://forum.ecmwf.int/t/connectionerror-requesting-datasets/10695)

<div class="topic-metadata">

**Author:** [@Leonardo\_Gottardi](https://forum.ecmwf.int/u/Leonardo_Gottardi)\
**Replies:** 0\
**Last updated:** [9 January 2025 14:42 UTC](https://forum.ecmwf.int/t/connectionerror-requesting-datasets/10695 "2025-01-09T14:42:46Z")

</div>

I’ve been trying to request datasets from “Gridded dataset underpinning the Copernicus Interactive Climate Atlas - CORDEX-EUR-11” since this morning and it keeps on failing returning the error “ConnectionError”. Is anybo…

---

## [New dataset published in CDS-Beta: Gridded dataset underpinning the Copernicus Interactive Climate Atlas](https://forum.ecmwf.int/t/new-dataset-published-in-cds-beta-gridded-dataset-underpinning-the-copernicus-interactive-climate-atlas/3982)

<div class="topic-metadata">

**Author:** [@Anabelle](https://forum.ecmwf.int/u/Anabelle)\
**Replies:** 0\
**Last updated:** [12 August 2024 11:02 UTC](https://forum.ecmwf.int/t/new-dataset-published-in-cds-beta-gridded-dataset-underpinning-the-copernicus-interactive-climate-atlas/3982 "2024-08-12T11:02:35Z")

</div>

We are pleased to announce that the gridded climate data (monthly/annual time series) used for the Copernicus Interactive Climate Atlas (C3S Atlas) has been published in the new Climate Data Store Beta (CDS-Beta): Gridd…

---

## [Question about SPEI (missing information in the documentation)](https://forum.ecmwf.int/t/question-about-spei-missing-information-in-the-documentation/2482)

<div class="topic-metadata">

**Author:** [@Matteo\_De\_Felice12](https://forum.ecmwf.int/u/Matteo_De_Felice12)\
**Replies:** 5\
**Last updated:** [11 July 2024 13:20 UTC](https://forum.ecmwf.int/t/question-about-spei-missing-information-in-the-documentation/2482 "2024-07-11T13:20:34Z")

</div>

Good morning, the Climate Atlas provides both SPI and SPEI indices. I searched for information on how the SPEI has been implemented but the official documentation lacks some basic information. The SPEI index (spei6) s…

---

## [Climate Atlas updates](https://forum.ecmwf.int/t/climate-atlas-updates/2984)

<div class="topic-metadata">

**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\
**Replies:** 0\
**Last updated:** [10 June 2024 13:59 UTC](https://forum.ecmwf.int/t/climate-atlas-updates/2984 "2024-06-10T13:59:37Z")

</div>

The C3S Atlas is periodically updated to make various improvements and amendments! Stay tuned and look at this page for more details: https://confluence.ecmwf.int/display/CKB/Copernicus+Interactive+Climate+Atlas%3A+Use…

---

## [New version of the Copernicus Interactive Climate Atlas (C3S Atlas) released](https://forum.ecmwf.int/t/new-version-of-the-copernicus-interactive-climate-atlas-c3s-atlas-released/2564)

<div class="topic-metadata">

**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\
**Replies:** 0\
**Last updated:** [22 April 2024 17:32 UTC](https://forum.ecmwf.int/t/new-version-of-the-copernicus-interactive-climate-atlas-c3s-atlas-released/2564 "2024-04-22T17:32:48Z")

</div>

We are pleased to announce that the Copernicus Interactive Climate Atlas (C3S Atlas) was updated today, 22 April 2024 and the new version is available at Copernicus Interactive Climate Atlas Details of the updates can b…

---

## [Loading map from the CDS Atlas in nc format seems wrong](https://forum.ecmwf.int/t/loading-map-from-the-cds-atlas-in-nc-format-seems-wrong/2125)

<div class="topic-metadata">

**Author:** [@Vincent\_Moron](https://forum.ecmwf.int/u/Vincent_Moron)\
**Replies:** 0\
**Last updated:** [6 March 2024 15:57 UTC](https://forum.ecmwf.int/t/loading-map-from-the-cds-atlas-in-nc-format-seems-wrong/2125 "2024-03-06T15:57:45Z")

</div>

I have an issue when I download data from the CDS Atlas (Copernicus Interactive Climate Atlas). For example, if I got the SLP monthly mean in January (without any region specified since I want to download the whole earth…

---

## [New application published: Copernicus Interactive Climate Atlas (C3S Atlas)](https://forum.ecmwf.int/t/new-application-published-copernicus-interactive-climate-atlas-c3s-atlas/1913)

<div class="topic-metadata">

**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\
**Replies:** 0\
**Last updated:** [20 February 2024 10:00 UTC](https://forum.ecmwf.int/t/new-application-published-copernicus-interactive-climate-atlas-c3s-atlas/1913 "2024-02-20T10:00:44Z")

</div>

We are pleased to announce that the Copernicus Interactive Climate Atlas (C3S Atlas) has been published today, 20 February 2024: https://atlas.climate.copernicus.eu The Copernicus Interactive Climate Atlas (C3S Atlas)…

---

## [WMS access to PDTS WMS Server](https://forum.ecmwf.int/t/wms-access-to-pdts-wms-server/1994)

<div class="topic-metadata">

**Author:** [@Jesus\_Manuel\_de\_Diego\_Ala](https://forum.ecmwf.int/u/Jesus_Manuel_de_Diego_Ala)\
**Replies:** 2\
**Last updated:** [27 February 2024 13:28 UTC](https://forum.ecmwf.int/t/wms-access-to-pdts-wms-server/1994 "2024-02-27T13:28:06Z")

</div>

Dear all is there any guide/resource that explains how to access to the PDTS WMS Server ( PDTS WMS Server ) that supports the Copernicus Interactive Climate Atlas using a standard desktop GIS client (QGIS, ArcGIS) or a …
