ECA&D provides input for the EUMETNET website Meteoalarm, which presents all extreme weather warnings from the official National Public Weather Services in Europe. In an attempt to harmonize the warning thresholds, the daily station data of ECA&D are used to derive a consistent climatology of severe weather events for all participating countries. The results of this effort are available here.

ECA&D contributes European information to the global databank for observed land surface temperatures which is part of the International Surface Temperature Initiative. The climate community works together in this initiative to create a clean, comprehensive, open and version controlled repository of detailed temperature data.

EURO4M is a European Union project (EU-FP7) which aims to develop multi-decadal sets of Essential Climate Variable products at high spatial and temporal resolution. ECA&D information from ground-based sources will be integrated with satellite sources and regional reanalysis in a comprehensive way for long-term climate monitoring and adaptation policy support. This will deliver the best possible and most complete (gridded) climate change time series and monitoring services covering all of Europe.

ENSEMBLES based Predictions of Climate Changes and their Impacts is a European Union project under FP6. Within this project, a common ensemble climate forecast system has been developed for use across a range of timescales (seasonal, decadal, and longer) and spatial scales (global, regional, and local). The production of daily gridded datasets (E-OBS) for surface climate variables is part of the project (RT5).

MILLENNIUM is a European Union project under FP6 that aimed to answer a single question: Does the magnitude and rate of 20th Century climate change exceed the natural variability of European climate over the last millennium? As part of this project, monthly aggregated station datasets for precipitation and temperature indices have been developed on the basis of ECA&D.

ECA&D works with the international Atmospheric Circulation Reconstructions over the Earth (ACRE) initiative to undertake and facilitate the recovery of historical instrumental surface terrestrial and marine global weather observations. This helps underpin 4D weather reconstructions (reanalyses) spanning the last 200-250 years for climate applications and impacts needs worldwide.

Indices definitions used in ECA&D are harmonized with the international definitions of the Expert Team on Climate Change Detection and Indices (ETCCDI). The ETCCDI is a joint expert team of the WMO Commission for Climatology (CCL), the Research Programme on Climate Variability and Predictability (CLIVAR) and the Joint WMO-IOC Technical Commission for Oceanography and Marine Meteorology (JCOMM). The team is putting particular emphasis on indices derived from daily data for the analysis of climate extremes.

The European Environment Agency (EEA) uses ECA&D indices as part of a group of environmental indices monitored by EEA on a regular basis. Key results are reported in their Environmental Assessment reports.

ECA&D forms a building block for a future Copernicus/GMES Climate Service which is fully complementary and supporting the existing operational services. Copernicus, previously known as GMES (Global Monitoring for Environment and Security), is the European Programme for the establishment of a European capacity for Earth Observation.

ECA&D works with the GCOS/WCRP Atmospheric Observation Panel for Climate (AOPC) to provide scientific and technical input concerning atmospheric observations for climate. The ECA Datasets of GCOS Essential Climate Variables (ECVs) support the work of the UNFCCC and the IPCC.