Date of Award

1-1-2010

Language

English

Document Type

Dissertation

Degree Name

Doctor of Philosophy (PhD)

College/School/Department

Department of Atmospheric and Environmental Sciences

Content Description

1 online resource (viii, 152 pages) : illustrations (some color)

Dissertation/Thesis Chair

John Molinari

Committee Members

Chris Thorncroft, Paul Roundy, Lance Bosart, Karen Mohr, Adam Sobel

Keywords

equatorial waves, Kelvin waves, Madden-Julian Oscillation, rainfall, tropical cyclogenesis, tropical cyclones, Cyclones, Ocean waves, Tropical meteorology, Convection (Meteorology)

Subject Categories

Atmospheric Sciences

Abstract

Tropical cyclones typically form within preexisting wavelike disturbances that couple with convection. Using Tropical Rainfall Measuring Mission (TRMM) multisatellite rainfall estimates, this study determines the relative number of tropical cyclones that can be attributed to various wave types, including the Madden-Julian oscillation (MJO), Kelvin waves, equatorial Rossby (ER) waves, mixed Rossby-gravity (MRG) waves, and tropical depression (TD)-type disturbances. Tropical cyclogenesis is attributed to an equatorial wave's convection when the filtered rainfall anomaly exceeds a threshold value at the genesis location.

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