International Climate Assessment Dataset Peter Siegmund Albert Klein

International Climate Assessment & Dataset Peter Siegmund, Albert Klein Tank, Ge Verver KNMI, Netherlands ET DARE meeting, WMO, 3 -6 November 2014

European Climate Assessment & Dataset (ECA&D) • Started in 1998 • Regional co-operation between 62 countries in Europe • Brings together daily station records (historical and contemporary) in a central repository • Pragmatic approach; country-specific data policies respected • Harmonized metadata and data QC / homogeneity testing procedures www. ecad. eu

www. ecad. eu

Example: Flooding in Central Europe, May/June, 2013 Source: http: //cib. knmi. nl

ICA&D regions ECA&D: European Climate Assessment & Dataset SACA&D: Southeast Asia Climate Assessment & Dataset LACA&D: Latin American Climate Assessment & Dataset WACA&D: West African Climate Assessment & Dataset WMO

Example: Start and end of the rainy season relevant for rice production March December

Example: improved precipitation data for water management in Jakarta flooding in February 2007 ‘old’ 1/2/2007 2/2/2007 mm ‘new’ 1/2/2007 ‘new’ 2/2/2007

Conclusions I • ICA&D regional data repositories and web portals are developed for daily data obtained from national databases in a region • Most daily data series did not exist in international archives yet • Products are relevant for national, regional, and global analyses and assessments (contributions to ISPD, GHCN-D, GPCC, ISTI, ETCCDI) • Gridded fields are produced when station coverage is satisfactory • Recovered and digitized data is added when available • Capacity development is the key success factor • ICA&D is selected as GFCS high priority project 8 (total of 9)

Conclusions II • Data policy issues are partly circumvented because derived indices/indicators are more readily shared and released than daily observational records themselves • All data and products are restricted to non-commercial research and education • Challenge of finding an institution which can commit the resources and responsibility to host an ICA&D system • Thank you…

Current activities • ECA&D forms a WMO Regional Climate Centre (RCC) node on data now www. ecad. eu • Monthly updates produced as part of the EU-projects EURO 4 M and UERRA • Digitized data for the Mediterranean (URV Centre for Climate Change) included as part of EURO 4 M • Extension to sub-daily data (hourly and 6 -hourly) developed as part of UERRA • Core set of ETCCDI climate change indices calculated for grids as part of EUEUPORIAS