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Daniël van Dijke MSc. The use of a high resolution model in a private environment Daniël van Dijke (MeteoGroup) Wim van den Berg, Gerald van de Grijn,

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Presentation on theme: "Daniël van Dijke MSc. The use of a high resolution model in a private environment Daniël van Dijke (MeteoGroup) Wim van den Berg, Gerald van de Grijn,"— Presentation transcript:

1 Daniël van Dijke MSc. The use of a high resolution model in a private environment Daniël van Dijke (MeteoGroup) Wim van den Berg, Gerald van de Grijn, Marlous Jonker, Dirk Malda

2 Introduction MeteoGroup enhancements Example case Use within MeteoGroup Outline

3 Introduction Weather Research and Forecasting Model (WRF® 1 ) National Center for Atmospheric Research (NCAR) National Oceanic and Atmospheric Administration (NOAA) National Centers for Environmental Prediction (NCEP) Forecast Systems Laboratory (FSL) Air Force Weather Agency (AFWA) Naval Research Laboratory Oklahoma University Federal Aviation Administration (FAA) Many users…. 1 WRF® is a registered trademark of the University Corporation for Atmospheric Research (UCAR)

4 Introduction WRF non-hydrostatic model Horizontal resolution from 25km till 500m Everywhere on the globe Use multiple (moving) nests

5 ECMWF model level data Neff without model levels with model levels VIS 3 May 2007, 12 UTC MG enhancements

6 ECMWF model level data instead of pressure level data High resolution land use and roughness data 3DVAR observation nudging

7 MG enhancements Skin surface temperature near coast ECMWF landmask ECMWF skin surface temperature at 0 UTC

8 Case: UTC UTC Maximum 2m temperature VIS 16 UTC Observations

9 13:00 – 23:55 UTC Case: Observations Maximum wind gusts past 24h (knots) 0 UTC

10 Case: Observations 14 UTC15 UTC16 UTC17 UTC 18 UTC19 UTC20 UTC21 UTC Maximum wind gusts past 24h (knots) 0 UTC

11 Case: WRF – setup WRF v km main domain (269x242x43) 3km nest (598x598x43) ECMWF model level input Initialisation time: 00:00 UTC

12 Case: WRF – radar reflectivity 15 UTC comparison 17 UTC

13 Case: WRF – radar reflectivity 14 UTC15 UTC16 UTC17 UTC 18 UTC19 UTC20 UTC21 UTC

14 Case: WRF – radar reflectivity comparison 15 UTC 17 UTC

15 Case: WRF – windspeed / direction Maximum wind gust WRF (knots) Maximum wind gust observed (knots) gusts

16 Case: WRF – windspeed / directiongusts 14 UTC15 UTC16 UTC17 UTC 18 UTC19 UTC20 UTC21 UTC Maximum wind gust WRF knots Maximum wind gust observed (knots)

17 Case: ECMWF MSLP and Precipitation past 3 hours 12 UTC MSLP and Precipitation past 3 hours 15 UTC MSLP and Precipitation past 3 hours 18 UTC MSLP and Precipitation past 3 hours 21 UTC mm

18 Use within MeteoGroup Daniël van Dijke MSc. Wind forecasting at hub height in complex terrain Detection of and warning for severe weather High resolution downscaling Regional climate modelling Tailor made parameters Air quality applications Hindcast studies


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