Transcript 070913Boulder_TiMREXV02_Houze.ppt

UW TiMREX Orographic Precipitation Study
Houze, Medina, Brodzik
Himalayan Study
(Houze, Wilton, Smull, 2007)
TiMREX
Western
Central
Eastern
Dry
Himalayas
Dry
Moist
Deep Intense Cores
40 dBZ echo
> 10 km in height
TiMREX Meeting, Boulder, 13 September 2007
Taiwan
Moist
UW TiMREX Science Objectives
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Vertical structure of MCSs
• Height
• Tilt
• Microphysical structure
Durnal triggering of orographically induced
deep convection
• Daytime
• Nightime
Large-scale factors
• Capping inversion?
• Low-level moist flow
TiMREX Meeting, Boulder, 13 September 2007
UW TiMREX Data Needs
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Radar
• S-Pol
• Taiwan Operational radars at the 4
southern sites
• Vertically pointing radars in 2-3 locations
Soundings
• Rawinsondes upstream of mountains
• Boundary layer soundings
Satellite
• Geosynchronous, high time resolution
Model high-resolution output
• Microphysical processes & fields
• Thermo
• Winds
TiMREX Meeting, Boulder, 13 September 2007
TiMREX Meeting, Boulder, 13 September 2007
A case of deep isolated 40 dBZ core
14 June 2002
TiMREX Meeting, Boulder, 13 September 2007