Rainfall Variations over Zhoushan during Last Four Decades

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DOI: 10.4236/oalib.1105819    233 Downloads   637 Views  Citations

ABSTRACT

Rainfall is essential for the humanity as well as for agriculture. Zhoushan is an Island, which experiences different kinds of rainfall events, such as due to typhoon, local convection, topographic effects, etc. To find out the variations, we have chosen Global Precipitation Climatology Project (GPCP) merged rainfall data set over Zhoushan during the period 1979-2018. Monthly, seasonal, annual and decadal variations have been checked and find out there is an increasing trend in rainfall during the study period. All the seasonal variations are illustrating an increasing trend except spring season, which showing decreasing trend. Recent decade (2009-18) illustrating strong increase in rainfall, this may be due to heavy rainfall events increased during decade. To find out the heavy rainfall events, we have chosen few typhoons’ rainfall during its life time, which clearly demonstrating that rainfall during the typhoon period. Zhoushan is experiencing heavy rainfall when the typhoon landfall over Zhejiang province also experiencing rainfall while typhoon passing through.

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Wang, L. , He, K. , Zhu, W. and Subrahmanyam, M. (2019) Rainfall Variations over Zhoushan during Last Four Decades. Open Access Library Journal, 6, 1-13. doi: 10.4236/oalib.1105819.
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