Date of Award
1-1-2015
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, 241 pages) : color illustrations, color maps.
Dissertation/Thesis Chair
Paul E Roundy
Committee Members
Lance F Bosart, Christopher D Thorncroft, George N Kiladis
Keywords
Intraseasonal variability, Madden Julian Oscillation, Tropical convection, Tropical-extratropical interaction, Madden-Julian oscillation, Atmospheric circulation, Convection (Meteorology), Angular momentum
Subject Categories
Atmospheric Sciences
Abstract
The convective initiation of the Madden-Julian Oscillation (MJO) over the Indian basin is often associated with eastward-propagating intraseasonal circulation approaching from the Western Hemisphere (WH), which is suggested to influence the onset of MJO convection. This dissertation first documents the event-to-event variability in the characteristics of MJO convection, which shows a geographical discrepancy in the relative roles of moist and dry dynamics on MJO convection. This dissertation then examines the structural evolution and dynamics of the intraseasonal upper-tropospheric circumnavigating circulation over the WH and its subsequent impact on MJO convection over the Indian basin, where MJO convective characteristics are highly associated with circumnavigating signals.
Recommended Citation
Sakaeda, Naoko, "The variability of Madden-Julian oscillation convection and the role of the Western Hemisphere circulation" (2015). Legacy Theses & Dissertations (2009 - 2024). 1493.
https://scholarsarchive.library.albany.edu/legacy-etd/1493