1. Evaluation of High-Resolution Precipitation Estimates from Satellites during July 2012 Beijing Flood Event Using Dense Rain Gauge Observations.
- Author
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Chen, Sheng, Liu, Huijuan, You, Yalei, Mullens, Esther, Hu, Junjun, Yuan, Ye, Huang, Mengyu, He, Li, Luo, Yongming, Zeng, Xingji, Tang, Guoqiang, and Hong, Yang
- Subjects
METEOROLOGICAL precipitation ,RAIN gauges ,METEOROLOGICAL observations ,LANDSLIDES ,METEOROLOGICAL research ,ATMOSPHERIC sciences ,CLIMATOLOGY - Abstract
Satellite-based precipitation estimates products, CMORPH and PERSIANN-CCS, were evaluated with a dense rain gauge network over Beijing and adjacent regions for an extremely heavy precipitation event on July 21 2012. CMORPH and PEERSIANN-CSS misplaced the region of greatest rainfall accumulation, and failed to capture the spatial pattern of precipitation, evidenced by a low spatial correlation coefficient (CC). CMORPH overestimated the daily accumulated rainfall by 22.84% while PERSIANN-CCS underestimated by 72.75%. In the rainfall center, both CMORPH and PERSIANN-CCS failed to capture the temporal variation of the rainfall, and underestimated rainfall amounts by 43.43% and 87.26%, respectively. Based on our results, caution should be exercised when using CMORPH and PERSIANN-CCS as input for monitoring and forecasting floods in Beijing urban areas, and the potential for landslides in the mountainous zones west and north of Beijing. [ABSTRACT FROM AUTHOR]
- Published
- 2014
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