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The full-featured DKRZ long term archiving service LTA WDCC (World Data Centre for Climate) offers long term archiving for datasets relevant for climate and Earth System research.



Mission to support the global climate modelling research community

The WDCC collects, stores, and disseminates Earth System data with a focus on climate simulation data and climate related data products so as to provide central support for the climate modelling research community - a capacity becoming more and more important in times of large model intercomparison projects (MIPS) or very high-resolution simulations performed on very large (continental scale) or even global domains. 

WDCC's mission is closely related to that of DKRZ's data management department: Long Term Archival, cataloguing, curation, and publishing of climate model output from globally distributed providers. This comprises quality checks and provision of Permanent Identifiers to make the data reusable and citable. Included are various kinds of user services for the German, European, and global climate research communities.

Although not the main focus of LTA WDCC, archival of observational data or derivatives thereof supporting climate and Earth System modelling research is also possible.

Full-featured long term data curation (>10 years)

Compared to the more lightweight archiving service LTA DOKU, LTA WDCC includes intense data curation for storage periods longer than 10 years and therefore ensures the ongoing retrievability and usability of the data - a service going well beyond that what is required to meet common requirements of good scientific practice. 

Before being archived in LTA WDCC, datasets and the accompanying metadata undergo meticulous technical quality checks by DKRZ’s Datamanagement (DM) department. The possibility of providing extensive metadata for the datasets during the submission process allows them to be easily found and retrieved via various search portals. These include the central DKRZ CERA search, WMO’s Global Information System Centre (GISC) search node at the German Weather Service (DWD) DWD GISCEUDAT B2FIND or ESGF (Earth System Grid Federation, given the data structure conforms to ESGF standards).

Possibility to assign DataCite DOI's to preserved datasets and compliance with the FAIR data guiding principles

Datasets preserved in LTA WDCC can be assigned a DataCite Digital Object Identifier (DOI) allowing for clear and standardised referencing in scientific publications and beneficial addition of datasets to a scientist’s publication record. The data undergo additional quality checks by DKRZ's DM department prior to being eligible for DOI assignment.

In line with DKRZ's adoption of the COPDESS (Coalition on Publishing Data in the Earth and Space Sciences) Commitment on Data Publications in June 2018 (Link), LTA WDCC complies with the FAIR data guiding principles as documented in an even-handed self assessment (Link).

Certified and internationally renowned reference archive

The LTA WDCC is certified according to the criteria of the World Data System as well as to those of the "Core Trust Seal" (certification document) - confirming the value and significance of the long term data preservation and curation at DKRZ. Furthermore, many top-tier scientific journals (e.g. Nature Scientific Data, Earth System Science Data) recommend LTA WDCC as trusted repository.

The archiving service LTA WDCC is available to the entire climate and Earth System research community.

Interested in preserving your research data using DKRZ's LTA WDCC service? See the items linked below for more information or contact DKRZ's DM department ()!

Data archival in LTA-WDCC the ideal solution for long-term curation of climate data.

Step-by-step guide for archiving datasets in LTA-WDCC at DKRZ

Searching and accessing LTA-WDCC data Climate data archived in LTA-WDCC are collected, long-term preserved and disseminated through DKRZ's operational CERA data and information system.

Access to data archived in LTA-WDCC

FAIRness of LTA WDCC An even-handed self-assessment of the LTA WDCC data preservation concept along the lines of the FAIR data guiding principles shows that LTA WDCC complies with these principles. Details of the evaluation are published here.


About the ICSU World Data System As World Data Centre the WDCC is member of the World Data System (WDS) which was created by the 29th General Assembly of the International Council for Science (ICSU) in 2008 and it complies with the WDS data sharing principles, i.e., full, open, timely, nondiscriminatory data and metadata access. The WDS builds on the 50-year legacy of the former ICSU World Data Centres (WDCs) and former Federation of Astronomical and Geophysical data-analysis Services (FAGS). In 2003 the WDCC had been approved as WDC for the first time; it was re-approved in 2014. In addition it qualified for the Data Seal of Approval and the Core Trust Seal.

About the ICSU World Data System

WDC Cluster Earth System Research WDCC provides long-term data storage and data dissemination to internal and external users. The service is designed for projects that need data storage for ten years or more.

WDC Cluster Earth System Research

Statistics Statistical information about the CERA-2 Database: size, number of downloads and user distribution.


Projects and Cooperations Present and past projects at DKRZ and WDCC.

Projects and Cooperations

CERA Infrastructure Information about CERA (Climate and Environmental Retrieval and Archive) - the infrastructure underlying long-term archival at DKRZ

CERA Infrastructure

Document Actions