alexa Cirrus Cloud Case Study In The Winter Over Sao Paulo City Using Lidar | 18589
ISSN: 2157-7617

Journal of Earth Science & Climatic Change
Open Access

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Cirrus cloud case study in the winter over Sao Paulo city using lidar

3rd International Conference on Earth Science & Climate Change

Eliane G Larroza, Ricardo de Camargo, Jos? Leandro P Silveira Campos, Walter M Nakaema, Riad Bourayou, Eduardo Landulfo, Christophe Hoareau,Davide Dionisi and Philippe Keckhut

Accepted Abstracts: J Earth Sci Clim Change

DOI: 10.4172/2157-7617.S1.016

Abstract
Arecently proposed methodology to obtain the macro-physical (top/base heights with respective temperatures and thickness) and optical properties (Lidar Ratio (LR) and optical depth (τcir)) of cirrus cloud have been tested from the lidar data measured at S?o Paulo city, Brazil (23o 33? S, 46o 44? W) during the winter period of 2007. At the same time was investigated a generating mechanisms responsible for cirrus cloud formation in the region of this study. Synoptic cirrus such as those formed in connection with jet streams, and frontal and low-pressure systems, were a common feature of our clouds. The retrieved lidar data show optical depth and lidar ratio ranging respectively from τcir = 0.08?0.02 to τcir = 0.56?0.01 and LR = 19 to LR = 74.
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