M. Baldauf (DWD) 1

Precipitation verification at DWD

29th WGNE meeting, 10-13 March 2014, Melbourne

U. Damrath (DWD)

2

1000 stations; controlled data are available around 10 days after measurement.

Verification method:

Aggregation to a 1° x 1° grid: forecasts in the model grid, observations as so called superobservations in each model grid.

2

M. Baldauf (DWD) 3

We are sorry for not considering Laurie Wilson‘s

Verification proposal, due to several migrations of the

verification system during the last year:

•libdwd GRIB-API (ECMWF)

•GRIB1 GRIB2

•database requesting layer (csobank sky)

•NEC SX9 Cray XC30

M. Baldauf (DWD) 4

Winter 2012/13

Forecast day 1

low values for ETS and highvalues for FBI due to anunusual dry winter

M. Baldauf (DWD) 5

Winter 2012/13

Forecast day 2

M. Baldauf (DWD) 6

Winter 2012/13

Forecast day 3

M. Baldauf (DWD) 7

Spring 2013

Forecast day 1

M. Baldauf (DWD) 8

Spring 2013

Forecast day 2

M. Baldauf (DWD) 9

Spring 2013

Forecast day 3

M. Baldauf (DWD) 10

Summer 2013

Forecast day 1

M. Baldauf (DWD) 11

Summer 2013

Forecast day 2

M. Baldauf (DWD) 12

Summer 2013

Forecast day 3

M. Baldauf (DWD) 13

Autumn 2013

Forecast day 1

M. Baldauf (DWD) 14

Autumn 2013

Forecast day 2

M. Baldauf (DWD) 15

Autumn 2013

Forecast day 3