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Federal Department of Home Affairs FDHA Federal Office of Meteorology and Climatology Meteo. Swiss

Federal Department of Home Affairs FDHA Federal Office of Meteorology and Climatology Meteo. Swiss High-Resolution Pan-Alpine Precipitation Analysis and Application Meteo. Swiss Contribution to EURO 4 M

EEA Report – The Alps Regional climate change and adaptation – • Water-tower of

EEA Report – The Alps Regional climate change and adaptation – • Water-tower of Europe • Vital ecosystem services • • „Global climate change. . . „Support monitoring and data • . . . threatens the alpine collection networks to expand hydrological system the knowledge base and widen drastically. the scope for in-depth analysis. . . may of • long dataworsen series. “current water resource issues and lead to increased risk of conflicts. “ • Need policy guidance (for local and regional stakeholders) on robust adaptation strategies. The Alps facing the challenge of changing water resources EEA, Tech Report, 9/2009, 9. 9. 2009 http: //www. eea. europa. eu/publications/alps-climate-change-and-adaptation-200914 EURO 4 M @ Meteo. Schweiz – Christoph Frei and Christian Lukasczyk 2

Alpine Rain-Gauge Networks APD @ ETH > 6800 stations 1971 -1995 Frei & Schär

Alpine Rain-Gauge Networks APD @ ETH > 6800 stations 1971 -1995 Frei & Schär 1998, Frei et al. 2006 Compile pan-Alpine rain-gauge dataset: Alps and adjacent flatland, high-resolution (all accessible data from national/regional services), daily, multi-decadal. EURO 4 M @ Meteo. Schweiz – Christoph Frei and Christian Lukasczyk 3

Gridded Dataset Schwarb et al. 2001 Develop method for gridding km-scale (~ 2 x

Gridded Dataset Schwarb et al. 2001 Develop method for gridding km-scale (~ 2 x 2 km), daily, 1971 -recent, building on experience with APD Provide dataset for research preliminary version in month 36. EURO 4 M @ Meteo. Schweiz – Christoph Frei and Christian Lukasczyk 4

Extreme Events Meteo. Swiss 2006 Floods of the past 50 years consistent spatial analysis,

Extreme Events Meteo. Swiss 2006 Floods of the past 50 years consistent spatial analysis, for hydrological modelling in trans-boundary catchments (CC impacts) EURO 4 M @ Meteo. Schweiz – Christoph Frei and Christian Lukasczyk 6

Evaluation 5 -year return level of 1 -day precipitation (mm, SON) Frei et al.

Evaluation 5 -year return level of 1 -day precipitation (mm, SON) Frei et al. 2006 Evaluate other precipitation datasets of EURO 4 M Updated E-Obs, GPCC, regional RA, downscaling from reg. RA representation of extremes, decadal-scale variations EURO 4 M @ Meteo. Schweiz – Christoph Frei and Christian Lukasczyk 7

Uncertainties Station data Grid 1 Grid 2 Meteo. Swiss 2008 Addressing errors and uncertainties

Uncertainties Station data Grid 1 Grid 2 Meteo. Swiss 2008 Addressing errors and uncertainties in gridding products: check for data quality, examine effect of variable observation practice, account for network variations in time, quantify interpolation uncertainties (ensemble gridding) EURO 4 M @ Meteo. Schweiz – Christoph Frei and Christian Lukasczyk 8

CM-SAF Dürr et al. 2008, Stöckli R. SEVIRI-based surface solar radiation and cloudiness over

CM-SAF Dürr et al. 2008, Stöckli R. SEVIRI-based surface solar radiation and cloudiness over Alps optimized Heliosat method, improved cloud/snow discrimination 2004 -, daily or better, development ongoing in CM-SAF EURO 4 M @ Meteo. Schweiz – Christoph Frei and Christian Lukasczyk 9

EUMETGRID: High-resolution gridded datasets & derived products for Europe Merging national gridding products Precip,

EUMETGRID: High-resolution gridded datasets & derived products for Europe Merging national gridding products Precip, Temp, Pressure, Snow-cover Use Synergies betw. EURO 4 M and EUMETGRID: trans-Alpine grids vs. tiled national grids gridding methods for other climate variables derived products and user contacts EURO 4 M @ Meteo. Schweiz – Christoph Frei and Christian Lukasczyk 10

Expectations • Co-operation / co-ordination with data requests • Knowledge exchange on QC and

Expectations • Co-operation / co-ordination with data requests • Knowledge exchange on QC and gridding methods • Learn potential/limitations of regional reanalyses and remote sensing data. • Links to users, share experience on user needs • Learn about new climate monitoring products and forms of user/public communication. • … EURO 4 M @ Meteo. Schweiz – Christoph Frei and Christian Lukasczyk 11

People Gaudenz Flury Reto Stöckli Simon Scherrer Christoph Frei Christof Appenzeller Mark Liniger 12

People Gaudenz Flury Reto Stöckli Simon Scherrer Christoph Frei Christof Appenzeller Mark Liniger 12 EURO 4 M @ Meteo. Schweiz – Christoph Frei and Christian Lukasczyk Christian Jung Francesco Isotta Christian Lukasczyk New!!