SOLA
Online ISSN : 1349-6476
Intercomparison of Dvorak Parameters in the Tropical Cyclone Datasets over the Western North Pacific
Tetsuo NakazawaShunsuke Hoshino
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2009 Volume 5 Pages 33-36

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Abstract

A study to compare Dvorak parameters (T-number and CI-number) for tropical cyclones over the western North Pacific in both JMA and JTWC datasets from 1987 to 2006 is presented to show if there is a difference between two datasets. The study shows that the Dvorak parameters by JTWC are generally higher than these by JMA during the period of 1992-1997 and 2002-2005. The major reasons for stronger cases in JTWC are “faster intensification before the mature stage and slow/delayed start of weakening after the mature stage”.

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© 2009 by the Meteorological Society of Japan
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