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Accueil du site → Doctorat → Italie → Analysis of the precipitation characteristics on the Tibetan Plateau using Remote Sensing, Ground-Based Instruments and Cloud model

Università degli Studi di Ferrara (2011)

Analysis of the precipitation characteristics on the Tibetan Plateau using Remote Sensing, Ground-Based Instruments and Cloud model

Gjoka Uarda

Titre : Analysis of the precipitation characteristics on the Tibetan Plateau using Remote Sensing, Ground-Based Instruments and Cloud model

Auteur : Gjoka Uarda

Université de soutenance : Università degli Studi di Ferrara.

Grade : DOTTORATO DI RICERCA IN "FISICA" 2011

Descriptif
The aim of this work is to set up a multi-platform observational tool for the precipitation monitoring over the Tibetan Plateau. Ground based observational network data are used to calibrate and validate a set of satellite precipitation estimation techniques purposely implemented to work on Tibetan Plateau. The considered techniques make use of various approaches and attempt to exploit the currently available spectrum of satellite measures. This Thesis is structured as follows. In Chapter one the research in meteorology carried out on the Tibetan Plateau is reviewed, with special emphasis on studies on cloud structure and precipitation characteristics, and on the implementation of satellite estimation techniques. The CEOP-AEGIS Project, which funded my PhD work is also introduced. In Chapter two the resources for precipitation studies over the Plateau are presented. Raingauge network and ground weather radars, made available to this study by the China Meteorological Administration, are introduced with a description of the pre-processing algorithms. The space-borne sensors considered in this work are also described. Chapter three is devoted to the description of the data used and the algorithms considered in this work. Some algorithms have been implemented from the literature, others have been originally developed for the use over the Tibetan Plateau. In other cases, algorithm outputs are analyzed. In Chapter four the results are reported for the three year 2008-2010, and for selected case studies, providing validation of the retrievals and intercomparison among the different approaches. Finally, conclusions are drawn.

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