ECAEuropean Climate Assessment

Copenhagen, 22 November 2001

Janet WijngaardKNMI, the Netherlands

Analyse extremes in temperatureand precipitation in Europe for the 20th century

European Climate Assessment

Approach: climate indicators• Short-list compiled with climate indicators

for temperature and precipitation• Daily resolution improves description of

(changes in) extremes

• Indicators are based on fixed thresholds and percentiles thresholds to account for different climates in Europe

www.knmi.nl/samenw/

eca

• Temperature extremes

Warm spells winter 1976-99

Cold spells winter 1976-99

• Precipitation extremes

Data quality

• Quality control• Homogeneity analysis• metadata

Remarks

• Final ECA-report published spring next year

• Data available (ECD) on cd-rom and web: http://www.knmi.nl/samenw/ecd

• Follow-up project and data updates ?