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Regional   Atmospheric   Soaring   Prediction
Boundary Layer Information Prediction MAP
The Netherlands, North Belgium and Northwest Germany

The atmospheric Boundary Layer (BL) is the vertical region above the surface within which air has been mixed by thermal or windshear eddies, i.e. the region where gliders, hanggliders and paragliders normally fly. The RASP BLIPMAP model is developed by Dr. John W. (Jack) Glendening and is a WRF model specifically adapted for these gliders. The basic parameters are described here and all parameters here. A description of all parameters in German can be found here. If you have any remarks or questions, please email rasp@blipmaps.nl.
The results are available for today at 08:30 local time, for tomorrow at 09:30 and for the day after tomorrow at 10:30 at the latest and depending on the weather sometimes up till 30 minutes earlier. Animations have only been made for those parameters of which the legenda doesn't change througout the day. After midnight all results are copied to one day earlier. Due to this until 10:30 no results are available for the day after tomorrow. How actual the forecast is can be derived from the number of hours that is noted in each picture before the text "hrFcst@". This is the difference between the model starttime and the time at which the forecast is valid. If you have difficulties distinguishing colors then thishelps.

Other areas for which RASP BLIPMAP predictions are available on this server: North- and Central France
Overview of areas for which RASP BLIPMAP predictions are available world-wide

PARAMETERS [Description] Yesterday TODAY (local time) Tomorrow The day after tomorrow 3 days 4 days
Thermal:
Surface Temperature Animation  
 
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Normalized Surface Sun Animation  
 
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Height of Boundary Layer Top Animation  
 
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Height of Critical Updraft Strength (<0,9 m/s) Animation  
 
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Maximum Thermalling Height including cloudbase limitations Animation  
 
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Thermal Height Uncertainty Animation  
 
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Thermal Updradft Velocity for 0,9 m/s sinkrate    
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Buoyancy/Shear Ratio Animation  
 
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Thermal Updraft Velocity and B/S ratio Animation  
 
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Wind:
Surface wind Animation  
 
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Boundary Layer Average Wind Animation  
 
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Wind at the Boundary Layer Top Animation  
 
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Boundary Layer Wind Shear Animation  
 
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BL Convergence Animation  
 
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Height at which BL Max. Up/Down Motion occurs Animation  
 
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Clouds:
Cumulus Cloudbase where CuPotential>0 Animation  
 
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OvercastDevelopment Cloudbase where ODpotential>0 Animation  
 
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BL Cloud Cover Animation  
 
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Surface Dew Point Temperature Animation  
 
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CAPE Animation  
 
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1 hr Accumulated Rain Animation  
 
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Wave/Upper-level:
Vertical velocity at 955mb (m) Animation  
 
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Vertical velocity at 899mb (m) Animation  
 
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Vertical velocity at 846mb (m) Animation  
 
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Vertical velocity at 795mb (m) Animation  
 
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Vertical velocity at 701mb (m) Animation  
 
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Vertical velocity at 616mb (m) Animation  
 
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Vertical velocity at 540mb (m) Animation  
 
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Vertical Velocity Slice through location of Max. Vertical Velocity at wind-parallel angle    
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Soundings and locations:
AMS (Amsterdam) Animation  
 
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EIN (Eindhoven) Animation  
 
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GRO (Groningen) Animation  
 
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DUS (Dusseldorf) Animation  
 
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BRE (Bremen) Animation  
 
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KAS (Kassel) Animation  
 
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HAN (Hannover) Animation  
 
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HAM (Hamburg) Animation  
 
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ERF (Erfurt) Animation  
 
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MAG (Magneburg) Animation  
 
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BRU (Brussel) Animation  
 
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LUX (Luxemburg) Animation  
 
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FRA (Frankfurt) Animation  
 
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NUR (Nurnberg) Animation  
 
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LIL (Lille) Animation  
 
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LML (Lemelerveld) Animation  
 
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Other:
Ground level  

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Experimental:
Potential flight distance   Total