Weather visualizations for the Olympics:
Clouds & reflectivity and surface precipitation & winds over Atlanta
You can look at RAMS output at two km resolution computed for June 20,
1996. This example is accompanied with an in-line image. Click on the image
to see a full-size 24-bit image of the same data. There is an MPEG animation
for each example, and a corresponding VRML geometry.
Output at two km resolution over the Atlanta area is illustrated. Cloud
water density is direct volume rendered with a translucent cyan isosurface
of reflectivity. Total precipitation is shown as pseudo-color filled contours
warped by local topography. Surface winds are shown via vector arrows of
constant size as in the previous example. The reflectivity isosurfaces
represent rain shafts internal to clouds, which correspond to the blue
"puddles" of rainfall on the surface. The locations of several Olympic
venues are also shown. A 52-frame MPEG animation
shows where the model predicts the formation of scattered thunderstorms.
You can also download a VRML-based model
corresponding to the still image.
Now you can look at the next set of examples.
You can see additional images and
learn more about this project, and the visualization work being done.
You can learn more the regional weather model and the parallelized
implementation on an IBM SP2.
lloydt@watson.ibm.com
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