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Multi-Scale Models for the Scale Int...

Yang, Qiu.

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Multi-Scale Models for the Scale Interaction of Organized Tropical Convection.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Multi-Scale Models for the Scale Interaction of Organized Tropical Convection./
Author:	Yang, Qiu.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2017,
Description:	219 p.
Notes:	Source: Dissertation Abstracts International, Volume: 78-12(E), Section: B.
Contained By:	Dissertation Abstracts International78-12B(E).
Subject:	Atmospheric sciences. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10259502
ISBN:	9780355127805

Multi-Scale Models for the Scale Interaction of Organized Tropical Convection.
Yang, Qiu.

Multi-Scale Models for the Scale Interaction of Organized Tropical Convection. - Ann Arbor : ProQuest Dissertations & Theses, 2017 - 219 p.

Source: Dissertation Abstracts International, Volume: 78-12(E), Section: B.

Thesis (Ph.D.)--New York University, 2017.

Assessing the upscale impact of organized tropical convection from small spatial and temporal scales is a research imperative, not only for having a better understanding of the multi-scale structures of dynamical and convective fields in the tropics, but also for eventually helping in the design of new parameterization strategies to improve the next-generation global climate models. Here self-consistent multi-scale models are derived systematically by following the multi-scale asymptotic methods and used to describe the hierarchical structures of tropical atmospheric flows. The advantages of using these multi-scale models lie in isolating the essential components of multi-scale interaction and providing assessment of the upscale impact of the small-scale fluctuations onto the large-scale mean flow through eddy flux divergences of momentum and temperature in a transparent fashion. Specifically, this thesis includes three research projects about multi-scale interaction of organized tropical convection, involving tropical flows at different scaling regimes and utilizing different multi-scale models correspondingly. Inspired by the observed variability of tropical convection on multiple temporal scales, including daily and intraseasonal time scales, the goal of the first project is to assess the intraseasonal impact of the diurnal cycle on the planetary-scale circulation such as the Hadley cell. As an extension of the first project, the goal of the second project is to assess the intraseasonal impact of the diurnal cycle over the Maritime Continent on the Madden-Julian Oscillation. In the third project, the goals are to simulate the baroclinic aspects of the ITCZ breakdown and assess its upscale impact on the planetary-scale circulation over the eastern Pacific. These simple multi-scale models should be useful to understand the scale interaction of organized tropical convection and help improve the parameterization of unresolved processes in global climate models.

ISBN: 9780355127805Subjects--Topical Terms:

3168354
Atmospheric sciences.

Multi-Scale Models for the Scale Interaction of Organized Tropical Convection.
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