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Published byOsborne Sharp Modified over 9 years ago
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1 WRF Configuration for Ukraine Input & boundary conditions from NCEP GFS model 3 day forecasts every 6 hours 10 km horizontal grid, 200x200 gridpoints 31 vertical levels One run takes 3.5 hours on 2x2 AMD Opteron development cluster To be on time HPC is required Air temperature (at 2 m) forecast using WRF model. Forecast is valid at 2007-07-23 06:00 UTC
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2 WRF Performance WRF performance at SCIT-3 cluster (700+ CPU cores) Single iteration corresponds to forecast for 1 min in advance
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3 Weather Forecast Service using WRF http://dos.ikd.kiev.ua/?option=com_wrf In operational mode from March 2006
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4 Validation of WRF model Average daily temperature at 2 m: –WRF vs. in-situ observations (Kiev) for Apr-Aug 2007 Histogram of Errors
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5 Application of WRF Model Cascade –WRF –NOAH LSM Tasks –drought monitoring –Vegetation stress assessment
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Application of cascade of models Air temperature (at 2 m) forecast using WRF model. Forecast is valid at 2007-07-23 06:00 UTC Noah model simulations. Monthly average of soil moisture (0-10 cm) in August 2007 C Example of drought indicator: LST Evolution of EVI in 2006 & 2007 vegetation seasons. Drought affected territories are highlighted by red rectangle Drought in 2007 1,4 106 ha - destroyed 8,5 106 ha - damaged $100 million losses disaster of national level
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