Impact of cloud microphysical processes on hurricane intensity, part 1: Control run |
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| Authors: | S Pattnaik T N Krishnamurti |
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| Institution: | (1) Department of Meteorology, Florida State University, Tallahassee, FL, USA |
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| Abstract: | Summary The first part of the paper comprises of a control experiment and its forecasts validations with the observed. The PSU-NCAR
mesoscale model MM5 was utilized at a horizontal resolution of 4 km using the data sets for hurricane Charley of 2004. The
model configures some of the best available versions for physics and microphysical parameterizations schemes to produce forecasts
which are close to the observed trend of hurricane Charley. The basic validations of the control run were carried out in terms
of track, intensity (sea-level pressure and surface wind speed), storm propagation speed, precipitation and radar reflectivity
with that of observed. The validations were necessary because this control experiment will be considered as a benchmark forecast
for comparison with other microphysics sensitive experiments forecasts in the second part of this paper. In general, the control
run forecasts closely comply with that of observed track and intensity of the hurricane Charley. We also note that control
run manage to reproduce much of the important structural characteristics features of the hurricane as observed. |
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