Thank you from the CORDEX office at SMHI

Swedish Meteorological and Hydrological Institute (SMHI) has been hosting the International Project Office (IPO) for CORDEX for more than 10 years and we are now in the process of dismantling and handing over. During the transition period until a new IPO is established the WCRP Secretariat together with the IPO for Regional Information for Society (RIfS) will handle the administration and coordination of CORDEX activities. The email address ipoc@cordex.org is still valid, however emails will be forwarded to and handled by Maureen Wanzala at the WCRP Secretariat from 11 July 2025. For urgent questions you could also contact the WCRP Secretariat directly at wcrp@wmo.int or the RIfS IPO at info@wcrp-rifs.org
You can also reach out to one of the Science Advisory Team members , any of the CORDEX Points of Contact for your domain or the coordinators of the Task Forces. For specific Flagship Pilot Study issues you can contact the FPS PIs.
Answers to Frequently Asked Questions can be found under FAQ General and FAQ Data and Access and on github CORDEX discussions.

Since this is the last news published by us at SMHI all of us that have worked at the Project Office during these years would like to thank all of you for the great engagement and fruitful collaboration. It has been a pleasure to work with you!

SMHI and the IPO staff will continue to work with communication, coordination and capacity building on climate research as well as climate modelling within CORDEX groups and we hope that we will meet and collaborate with you again in the future!

Are you a regional ocean climate modeler?

If so, your inputs would be greatly appreciated !

As part of the joint CLIVAR-OMDP and RIfS-CORDEX Task Force on Regional Ocean Climate Projections, we are assembling a record inventory of regional ocean model projection simulations as both a resource for the regional ocean modeling community, to inform recommendations regarding community needs and priorities.

We are collecting information for this inventory by way of voluntary survey with the intent of making synthesized information publicly available via the Task Force web page.

You’re invited to take the survey using the QR code below or using directly this link https://forms.office.com/e/18yxHGqWPZ :

Please submit your response by 1 July 2025.

The survey only takes less than 10 minutes to complete.

Please fill free to forward this survey to potentially interested colleagues and modeling programs.

Any question?
Please contact: Liz Drenkard, Angélique Melet or Samuel Somot
liz.drenkard@noaa.gov
amelet@mercator-ocean.fr
samuel.somot@meteo.fr

ESGF data loss impacting the availablility of CORDEX-CMIP5 data

In early 2025, a major data loss at DKRZ significantly impacted the availability of CORDEX-CMIP5 data through the ESGF, as many datasets—without existing replicas—were stored exclusively at that node. Despite the hard work to recover as many data sets as possible, the loss still affects approximately 20,000 datasets (over 200 TB), spanning multiple CORDEX domains, variables, and output frequencies. A full list of the missing datasets can be found here.
All CORDEX users are encouraged to check their local CORDEX-CMIP5 data archives (downloaded from ESGF) to help mitigate the impact of this data loss. A simple script is available in the esgf-data-loss/ directory to assist in identifying whether your system contains any of the missing data.

bash locate_available_data.sh /path/to/your/CORDEX/data/following/ESGF/directory/structure

If you discover that you hold any of the affected datasets, please open an issue in this repository or contact: datasupport@cordex.org.
Some of the most commonly used variables from the CORDEX-CMIP5 archive remain accessible via the Copernicus Climate Data Store (Diez-Sierra et al. 2024).

Extended deadline – Survey on potential commitments for CORDEX-CMIP7 in time for AR7

The CORDEX Task Force on CMIP7 has prepared a survey to collect information about plans from modelling groups:

Survey on potential commitments for CORDEX-CMIP7 in time for AR7

The CORDEX Task Force (TF) on Preparation of CORDEX-CMIP7 is preparing the way to downscale the upcoming CMIP cycle, starting with the CMIP7 Fast Track, which will respond to the needs of the IPCC 7th Assessment Report (AR7). In this respect, the TF would benefit from prior knowledge of existing national or institutional commitments to downscale the CMIP7 Fast Track in time for AR7 or other assessments/adaptation plans in the short term. This brief survey collects key information to assist the TF work.

Please find the survey here: https://forms.gle/ancgPtUaytwBkYS5A

The deadline for answering is extended until end of May.