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Preparation for CWRF downscaling climate prediction over Pakistan: development of iCWPS surface processing and analysis of regional precipitation teleconnection

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Title: Preparation for CWRF downscaling climate prediction over Pakistan: development of iCWPS surface processing and analysis of regional precipitation teleconnection
Author(s): Khan, Ibraheem M.
Advisor(s): Liang, Xin-Zhong
Department / Program: Atmospheric Sciences
Discipline: Atmospheric Sciences
Degree Granting Institution: University of Illinois at Urbana-Champaign
Degree: M.S.
Genre: Thesis
Subject(s): Climate-Weather Research and Forecasting (CWRF) surface boundary conditions (SBCs) Interactive CWRF Preprocessing System (iCWPS) geographic information system (GIS) Climate-Weather Research and Forecasting (CWRF)
Abstract: The climate in Pakistan is characterized by distinct summer and winter south Asian monsoon systems. As Pakistan locates at the transit zone from central to southern Asia, its climate variability is subject to planetary circulation forcings and regional interactions with complex surface characteristics. As such, credible prediction of the regional climate requires realistic representation of land-atmosphere interactions and large-scale monsoonal processes. The state-of-the-art regional Climate-Weather Research and Forecasting (CWRF) model offers a unique tool to better understand the physical processes and ultimately improve the numerical prediction of Pakistan climate, especially precipitation. The CWRF, however, requires accurate specification of comprehensive surface boundary conditions (SBCs) to define regional land-atmosphere interactions and optimal design of the computational domain to correctly integrate the planetary circulation forcings. As the initial but necessary step, this study focuses on [1] Development of an Interactive CWRF Preprocessing System (iCWPS) that enables GIS-based, construction of the essential SBCs for any given horizontal resolution and domain position; and [2] Analysis of Pakistan precipitation teleconnection with planetary circulation patterns that facilitate the optimal domain position for the CWRF to realistically integrate large-scale forcings. Current study is aimed at the optimal domain definition with dynamical downscaling as a condition for CWRF simulation requirement.
Issue Date: 2012-02-01
URI: http://hdl.handle.net/2142/29497
Rights Information: Copyright 2011 Ibraheem Muhammad Pasha Khan
Date Available in IDEALS: 2012-02-01
2014-02-01
Date Deposited: 2011-12
 

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