1. Concurrent Visualization (NASA Goddard and Ames)
WRF
simulated
dBz-
2 min
Shape/size
of the eye
NASA Ames
Visualization Group
Katrina 2005
Goddard Mesoscale Dynamic and
Modeling Group
Resolutions: 15, 5 and km Grid size: 300x200, , 418x427, 373x382
Dt = 60, 20, 6.67 seconds Starting time: 00Z 8/27/2005
Initial and Boundary Conditions: NCEP/GFS, with bogus but no data assimilation
Website for mesoscale modeling group and cloud library

2. Minimum sea level pressure (MSLP) Tracks for Hurricane Katrina
Minimum sea level pressure (MSLP) from the observation and five different WRF experiments using different microphysical schemes
Similar temporal variation between model simulated and observed MSLP.
All 3ICE schemes over-estimated MSLP (~20-25 hPa), especially Lin scheme (45 hPa lower).
No ice case produced strongest hurricane (in the 1st 30 hours).
Ice Free
Lin
Tracks for Hurricane Katrina
Tracks for Hurricane Katrina (2005) from the observation and five different WRF experiments using different microphysical schemes (from 00Z 8/27/2005 to 00Z 8/30/2005).
Good track forecast in 1st 24 h model integration (less than 25 km because imposed bogus)
All schemes’ simulated track is far west after landfall