Theses and Dissertations
Issuing Body
Mississippi State University
Advisor
Wood, Kimberly M.
Committee Member
Dyer, Jamie L.
Committee Member
Rudzin, Johna E.
Date of Degree
8-8-2023
Document Type
Graduate Thesis - Open Access
Major
Professional Meteorology/Climatology
Degree Name
Master of Science (M.S.)
College
College of Arts and Sciences
Department
Department of Geosciences
Abstract
Tropical cyclone (TC) intensity and structure are affected by their environments, including sea surface temperature, vertical wind shear, and atmospheric moisture. Analyses of TC environments often rely on area-averaged quantities, yet the spatial variability of these fields can affect TC behavior, such as moisture distribution impacting where and how much rain falls. This study identifies spatial patterns of environmental moisture surrounding mature North Atlantic TCs during 2000-2021 in shear of less than 20 knots. Empirical orthogonal function analysis of total column water vapor reveals six dominant patterns. These patterns account for nearly 67% of the variance in the dataset and are affected by geographic location and large-scale atmospheric phenomena. Mid-level ventilation appears more likely in certain patterns. Future work will explore radar and passive microwave observations for cases in each pattern to quantify the physical impacts of these moisture patterns on mature TCs.
Sponsorship
National Science Foundation
Recommended Citation
Berislavich, Katherine, "An analysis of moisture environments associated with mature North Atlantic tropial cyclones" (2023). Theses and Dissertations. 5878.
https://scholarsjunction.msstate.edu/td/5878