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Storm-Relative Eulerian Absolute Angular Momentum Tendency in Atlantic Tropical Cyclones: Advection and Torques and Their Relative Roles in Vortex Strengthening

This study examined inner-core sources and sinks of angular momentum in Atlantic tropical cyclones. Each advective and torque term in the Eulerian absolute angular momentum tendency equation was calculated in a storm-relative reference frame using modeled and observational data. 18 storms between 2004 and 2006 were simulated using the hurricane weather research and forecast (HWRF) model. In addition, 30 composite observational data sets from the Atlantic oceanographic and meteorological laboratory's (AOML) H*Wind archive were gathered. These included aircraft, satellite, offshore buoy, coastal, and ship observations. Through methods of statistical correlation, categorical composition and linear regression, it was found that mid-level horizontal advection of relative angular momentum was most relevant to 12 hour strength change in the modeled tropical cyclones, while observed storms favored mid-level horizontal advection of Earth's angular momentum. / A Thesis submitted to the Department of Meteorology in partial fulfillment of the requirements for the degree of Master of Science. / Spring Semester, 2009. / March 6, 2009. / Angular Momentum, Hurricanes, Tropical Cyclones, Eulerian / Includes bibliographical references. / T. N. Krishnamurti, Professor Directing Thesis; Robert Hart, Committee Member; Paul Ruscher, Committee Member.

Identiferoai:union.ndltd.org:fsu.edu/oai:fsu.digital.flvc.org:fsu_180958
ContributorsMartin, Andrew (authoraut), Krishnamurti, T. N. (professor directing thesis), Hart, Robert (committee member), Ruscher, Paul (committee member), Department of Earth, Ocean and Atmospheric Sciences (degree granting department), Florida State University (degree granting institution)
PublisherFlorida State University, Florida State University
Source SetsFlorida State University
LanguageEnglish, English
Detected LanguageEnglish
TypeText, text
Format1 online resource, computer, application/pdf
RightsThis Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s). The copyright in theses and dissertations completed at Florida State University is held by the students who author them.

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