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The use of a high resolution model in a private environment

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Presentation on theme: "The use of a high resolution model in a private environment"— Presentation transcript:

1 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 Daniël van Dijke MSc.

2 Outline Introduction MeteoGroup enhancements Example case
Use within MeteoGroup

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

6 MG enhancements 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 skin surface temperature at 0 UTC ECMWF landmask

8 Case: 21-07-2009 Observations 21-07-2009 12 UTC 22-07-2009 12 UTC
Maximum 2m temperature VIS 16 UTC Observations

9 Case: 21-07-2009 Observations Maximum wind gusts past 24h (knots)
0 UTC 13:00 – 23:55 UTC Observations

10 Case: 21-07-2009 Observations Maximum wind gusts past 24h (knots)
0 UTC 14 UTC 15 UTC 16 UTC 17 UTC 18 UTC 19 UTC 20 UTC 21 UTC Observations

11 Case: 21-07-2009 WRF – setup WRF v3.1.1 9km main domain (269x242x43)
3km nest (598x598x43) ECMWF model level input Initialisation time: 00:00 UTC WRF – setup

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

13 Case: 21-07-2009 14 UTC 15 UTC 16 UTC 17 UTC 18 UTC 19 UTC 20 UTC
WRF – radar reflectivity

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

15 Case: 21-07-2009 WRF – wind gusts speed / direction
Maximum wind gust observed (knots) Maximum wind gust WRF (knots) WRF – wind gusts speed / direction

16 Case: 21-07-2009 14 UTC 15 UTC 16 UTC 17 UTC 18 UTC 19 UTC 20 UTC
Maximum wind gust observed (knots) Maximum wind gust WRF knots 14 UTC 15 UTC 16 UTC 17 UTC 18 UTC 19 UTC 20 UTC 21 UTC WRF – wind speed / direction gusts

17 Case: 21-07-2009 MSLP and Precipitation past 3 hours 18 UTC 21-07-2009
mm ECMWF

18 Use within MeteoGroup 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 Use within MeteoGroup Daniël van Dijke MSc.

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