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	Spatiotemporal Interpolation of Rainfall by Combining BME Theory and Satellite Rainfall Estimates
	Shi T. T.; Yang, X. M.; Christakos, G.; Wang, J. F.; Liu, L.
	2015
关键词	Bayesian maximum entropy (BME) TRMM spatiotemporal analysis soft data rainfall precipitation bayesian-maximum-entropy precipitation analysis tmpa spatial interpolation soft data prediction tetrachloroethylene information elevation basin land
英文摘要	The accurate assessment of spatiotemporal rainfall variability is a crucial and challenging task in many hydrological applications, mainly due to the lack of a sufficient number of rain gauges. The purpose of the present study is to investigate the spatiotemporal variations of annual and monthly rainfall over Fujian province in China by combining the Bayesian maximum entropy (BME) method and satellite rainfall estimates. Specifically, based on annual and monthly rainfall data at 20 meteorological stations from 2000 to 2012, (1) the BME method with Tropical Rainfall Measuring Mission (TRMM) estimates considered as soft data, (2) ordinary kriging (OK) and (3) cokriging (CK) were employed to model the spatiotemporal variations of rainfall in Fujian province. Subsequently, the performance of these methods was evaluated using cross-validation statistics. The results demonstrated that BME with TRMM as soft data (BME-TRMM) performed better than the other two methods, generating rainfall maps that represented the local rainfall disparities in a more realistic manner. Of the three interpolation (mapping) methods, the mean absolute error (MAE) and root mean square error (RMSE) values of the BME-TRMM method were the smallest. In conclusion, the BME-TRMM method improved spatiotemporal rainfall modeling and mapping by integrating hard data and soft information. Lastly, the study identified new opportunities concerning the application of TRMM rainfall estimates.
出处	Atmosphere
卷	6
期	9
页	1307-1326
收录类别	SCI
语种	英语
ISSN号	2073-4433
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/38839]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Shi T. T.,Yang, X. M.,Christakos, G.,et al. Spatiotemporal Interpolation of Rainfall by Combining BME Theory and Satellite Rainfall Estimates. 2015.

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