Diurnal Variations of Rainfall in Surface and Satellite Observations at the Monsoon Coast (South China) | Zendy

Guixing Chen | Zendy; Ruoyu Lan | Zendy; Wenxin Zeng | Zendy; He Pan | Zendy; Weibiao Li | Zendy

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Diurnal Variations of Rainfall in Surface and Satellite Observations at the Monsoon Coast (South China)

Author(s) -

Guixing Chen,

Ruoyu Lan,

Wenxin Zeng,

He Pan,

Weibiao Li

Publication year - 2017

Publication title -

journal of climate

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.315

H-Index - 287

eISSN - 1520-0442

pISSN - 0894-8755

DOI - 10.1175/jcli-d-17-0373.1

Subject(s) - morning , climatology , environmental science , monsoon , rain gauge , sea breeze , diurnal cycle , bay , tropical cyclone rainfall forecasting , satellite , precipitation , meteorology , geology , geography , oceanography , medicine , aerospace engineering , engineering , cyclone (programming language) , field programmable gate array , computer science , computer hardware

The complex features of rainfall diurnal cycles at South China coast are examined using hourly rain-gauge data and satellite products (CMORPH and TRMM-3B42) during 1998–2014. It is shown that morning rainfall is pronounced near the coasts and windward mountains with high rainfall in the summer monsoon season, while afternoon rainfall is dominant on land and nocturnal rainfall occurs at northern inland sites. Both satellite products report less morning rainfall and more afternoon rainfall than rain-gauge data, and they also miss the midnight rainfall minimum. These errors are mainly attributable to an underestimation of morning moderate/intense rains at coasts and an overestimation of afternoon–evening light rains on land. With a correction of the systematic bias, satellite products faithfully resolve the spatial patterns of normalized rainfall diurnal cycles related to land-sea contrast and terrains, suggesting an improved data application for regional climate studies. In particular, they are comp...

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