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Analytic Closed-Form Solution of a M...

Akyurek, Bengu Ozge.

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Analytic Closed-Form Solution of a Mixed Layer Model for Stratocumulus Clouds.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Analytic Closed-Form Solution of a Mixed Layer Model for Stratocumulus Clouds./
作者:	Akyurek, Bengu Ozge.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2017,
面頁冊數:	119 p.
附註:	Source: Dissertation Abstracts International, Volume: 79-01(E), Section: B.
Contained By:	Dissertation Abstracts International79-01B(E).
標題:	Atmospheric sciences. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10603173
ISBN:	9780355313994

Analytic Closed-Form Solution of a Mixed Layer Model for Stratocumulus Clouds.
Akyurek, Bengu Ozge.

Analytic Closed-Form Solution of a Mixed Layer Model for Stratocumulus Clouds. - Ann Arbor : ProQuest Dissertations & Theses, 2017 - 119 p.

Source: Dissertation Abstracts International, Volume: 79-01(E), Section: B.

Thesis (Ph.D.)--University of California, San Diego, 2017.

Stratocumulus clouds play an important role in climate cooling and are hard to predict using global climate and weather forecast models. Thus, previous studies in the literature use observations and numerical simulation tools, such as large-eddy simulation (LES), to solve the governing equations for the evolution of stratocumulus clouds. In contrast to the previous works, this work provides an analytic closed-form solution to the cloud thickness evolution of stratocumulus clouds in a mixed-layer model framework. With a focus on application over coastal lands, the diurnal cycle of cloud thickness and whether or not clouds dissipate are of particular interest. An analytic solution enables the sensitivity analysis of implicitly interdependent variables and extrema analysis of cloud variables that are hard to achieve using numerical solutions. In this work, the sensitivity of inversion height, cloud-base height, and cloud thickness with respect to initial and boundary conditions, such as Bowen ratio, subsidence, surface temperature, and initial inversion height, are studied. A critical initial cloud thickness value that can be dissipated pre- and post-sunrise is provided. Furthermore, an extrema analysis is provided to obtain the minima and maxima of the inversion height and cloud thickness within 24 h. The proposed solution is validated against LES results under the same initial and boundary conditions. Then, the proposed analytic framework is extended to incorporate multiple vertical columns that are coupled by advection through wind flow. This enables a bridge between the micro-scale and the mesoscale relations. The effect of advection on cloud evolution is studied and a sensitivity analysis is provided.

ISBN: 9780355313994Subjects--Topical Terms:

3168354
Atmospheric sciences.

Analytic Closed-Form Solution of a Mixed Layer Model for Stratocumulus Clouds.
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