Earth System Modelling

NAISS 2023/6-387


NAISS Medium Storage

Principal Investigator:

Lars Nieradzik


Lunds universitet

Start Date:


End Date:


Primary Classification:

10501: Climate Research

Secondary Classification:

10503: Geosciences, Multidisciplinary

Tertiary Classification:

10507: Physical Geography



This is a proposal for the continuation of the project described in SNIC 2022/6-352 which originates in SNIC 2019/12-18. It is an Earth System Modeling project (Comprehensive Climate Model) including several individual models describing the atmosphere, ocean, land surface, vegetation, and carbon cycle. The storage capacity required for a single 150 year simulation is in the order of about 20 TB. Including for example the chemistry, the output data is in the range 8 GB/month. After having processed and evaluated most of the data there is demand to keep the data accessible for future publications in the follow up on the 6th IPCC assessment report. At the same time we have started to set up and tune the new generation of the Earth System Model EC-Earth for the next cycle (CMIP7) for which a significant amount of tuning and evaluation simulations will have to be performed. Furthermore, there are currently four EU-projects that have emerged directly from work based on SNIC 2019/12-18 and its successors: OptimESM, RESCUE, GreenFeedBack, and AI4PEX, all of which will make use of the developments made in the previous projects. These projects will benefit greatly from a continuation as the amount of data will increase over time, while at the same time CMIP6 related older data will be stored on data-servers of the ESGF (Earth System Grid Federation) and, thus, removed from SWESTORE. We anticipate that the amount of storage will be needed for the duration of the CMIP7 process which is likely to not finish before 2028. We estimate, that the 100 TiB we currently use will be sufficient over the coming year.