Improving the detection and tracking of tropical cyclones in atmospheric general circulation models

Publication Type  Journal Article
Year of Publication  2002
Authors  Camargo, S. J.; Zebiak, S. E.
Journal Title  Weather and Forecasting
Volume  17
Issue  6
Pages  1152-1162
Journal Date  Dec
ISBN Number  0882-8156
Accession Number  ISI:000180135600002
Key Words  hurricane-type vortices; regional climate model; gcm integrations; global-model; simulation; prediction; pacific

Dynamical seasonal forecasts of tropical storm frequency require robust and efficient algorithms for detection and tracking of tropical storms in atmospheric general circulation models (AGCMs). Tropical storms are generally detected when dynamic and thermodynamic variables meet specified criteria. Here, it is shown that objectively defined model- and basin-dependent detection criteria improve simulations of tropical storm climatology and interannual variability in low-resolution AGCMs. An improved tracking method provides more realistic tracking and accurate counting of storms.


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URL  <Go to ISI>://000180135600002