E C A C 2000European Climate Assessment

Pisa, 16 October 2000

Albert Klein TankKNMI, the Netherlands

X

• Aim at WMO Region VI (Europe and Middle East)• Note: EUMETNET/ECSN = 18 out of 48 countries

Guide

• ECA-project approach• Use of climate indicators• Trend map examples• (Near) future• Concluding remarks

Indicators based on:144 daily temperature series152 daily precipitation series

Use of climate indicatorsMaximum temperature at De Bilt

European Climate Assessment < Warning: preliminary result! >

121110987654321

Tem

pera

ture

(°C

)

40

30

20

10

0

-10

-20

40

30

20

10

0

-10

-20

E.g.

• Tx• ETR/DTR• Id• Tx10/Tx90• Wd/Su/Csu• HWFI

Trend map examples

(Near) future

• Text drafting:– New daily data set of surface air temperature

and precipitation observations for European Climate Assessment

– Homogeneity of the ECA temperature data– Trends in indicators for temperature and

precipitation extremes– ???

Concluding remarks

• Additional data gathering (still gaps)and processing required

• Discussion on daily series QC /homogeneity issues ( Janet Wijngaard)

• Follow-up in ECD-project ( Aryan van Engelen)