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Obs4MIPs

A wide variety of observationally-based datasets are used for climate model evaluation. Obs4MIPs (Observations for Model Intercomparisons Project) refers to a limited collection of documented datasets that have been organised according to the Coupled Model Intercomparison Project (CMIP) model output requirements and made available on the Earth System Grid Federation (ESGF).

This effort was initiated with support from NASA and the U.S. Department of Energy (DOE) and has now expanded to include contributions from a broader community including ESA. Obs4MIPs underpins model evaluation in CMIP (and beyond) and thus makes a significant contribution to the assessment of and sustained improvement in model quality, e.g. as reported by IPCC. The CCI ECV projects contribute ECV data sets, which are decided to be of most interest to the CMIP community, to Obs4MIPs.


CORDEX

The Coordinated Regional Climate Downscaling Experiment (CORDEX) vision is to advance and coordinate the science and application of regional climate downscaling through global partnerships.


ESMValTool

The Earth System Model Evaluation Tool (ESMValTool) is an open-source community-developed diagnostics and performance metrics tool for the evaluation and analysis of Earth System Models (ESMs). ESMValTool allows for a comparison of single or multiple models against predecessor versions and observations. The aim of the ESMValTool is to take model evaluation to the next level by facilitating analysis of many different ESM components, providing well-documented source code and scientific background of implemented diagnostics.


CMIP

The Coupled Model Intercomparison Project (CMIP) is a project of the World Climate Research Programme (WCRP) providing climate projections to understand past, present and future climate changes. CMIP and its associated data infrastructure have become essential to the Intergovernmental Panel on Climate Change (IPCC) and other international and national climate assessments.


GCOS

The Global Climate Observing System (GCOS) ensures that the observations and information needed to address climate-related issues are obtained and made available to all potential users. GCOS expert panels maintain definitions of Essential Climate Variables (ECVs). ESA's Climate Change Initiative (CCI) is a dedicated Essential Climate Variable (ECV) project.


WCRP

The World Climate Research Programme (WCRP) leads the way in addressing frontier scientific questions related to the coupled climate system. The WCRP coordinates and facilitates international climate research to develop, share, and apply the climate knowledge that contributes to societal well-being.


C3S

The Copernicus Climate Change Service (C3S) mission is to support adaptation and mitigation policies of the European Union by providing consistent and authoritative information about climate change. C3S offer free and open access to climate data and tools based on the best available science.



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