干旱区生态环境知识资源中心(Arid): GPM卫星降水数据在黑河流域的适用性评价

Arid

	GPM卫星降水数据在黑河流域的适用性评价
其他题名	Evaluating the Applicability of GPM Satellite Precipitation Data in Heihe River Basin
	王思梦; 王大钊; 黄昌
来源期刊	自然资源学报
ISSN	1000-3037
出版年	2018
卷号	33 期号:10 页码:1847-1860
中文摘要	论文分别从时间和空间两个角度对GPM卫星降水数据在黑河流域适用性进行评价。以TRMM卫星的降水产品和气象观测站点实测的降水数据作为参考,选用相关系数(R)、均方根误差(RMSE)、相对误差(BIAS)、平均误差(ME)以及标准偏差(SD)多种统计分析指标进行精度评价。结果表明:1)GPM卫星降水数据具有与观测数据较好的一致性以及良好的时间模式; 2)GPM卫星降水数据与观测数据之间有着较高的相关系数(R>0.72)以及较低的误差范围(-0.59%~1.62%);3)相比TRMM,GPM具有较低的均方根误差(RMSE<28.76),尤其是对夏季降水,GPM具有相对更高的相关系数(R>0.76)和更小的相对误差(BIAS<1.14);4)卫星估测降水量的精度与高程具有明显的相关性。总的来说,GPM卫星降水数据在地形复杂的干旱半干旱区域也能够具有较好的精度,能够较为准确地反映干旱半干旱地区的降水分布。
英文摘要	The precipitation varies across space and time. The estimation of precipitation is thus difficult to achieve high precision, leading to the significant difference and enormous uncertainties when applying precipitation products in different areas. The accuracy could be influenced by terrain or climatic factors. Therefore, it is necessary to verify its suitability and accuracy before using GPM data for precipitation monitoring. In this paper, the applicability of GPM satellite precipitation data in Heihe River Basin (HRB) is evaluated at both spatial and temporal scales. Based on the precipitation data of the TRMM satellite and the precipitation data measured at the meteorological observation sites, the correlation coefficient (R), root mean square error (RMSE), relative bias (BIAS), mean error (ME) and standard deviation (SD) were selected to evaluate the accuracy of satellite data. The results demonstrate that the monthly GPM data can capture the precipitation well. It shows a good consistency with the measured data and reveals a good temporal pattern. There is a high correlation between the GPM data and the observed data (R>0.72) and a low error range (-0.59% - 1.62%). Comparing with TRMM, GPM produces lower RMS error (RMSE <28.76). In summer, GPM performs better, with higher correlation coefficient (R>0.76) and lower error (BIAS <1.14). Both estimated precipitation and measured precipitation decline from southeast to northwest. The elevation was found to have a significant impact on the precipitation monitoring accuracy. In general, the GPM satellite precipitation data are applicable in the arid and semi-arid areas with complex terrain and can accurately reflect the precipitation distribution, bearing in mind that further improvement is still needed.
中文关键词	卫星降水数据 ; 黑河流域 ; 估测降水
英文关键词	GPM TRMM satellite precipitation data Heihe River Basin GPM TRMM precipitation estimation
类型	Article
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:6349528
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/238911
作者单位	王思梦, 西北大学城市与环境学院, 陕西省地表系统与环境承载力重点实验室, 西安, 陕西 710127, 中国.; 王大钊, 西北大学城市与环境学院, 陕西省地表系统与环境承载力重点实验室, 西安, 陕西 710127, 中国.; 黄昌, 西北大学城市与环境学院, 陕西省地表系统与环境承载力重点实验室, 西安, 陕西 710127, 中国.
推荐引用方式 GB/T 7714	王思梦,王大钊,黄昌. GPM卫星降水数据在黑河流域的适用性评价[J],2018,33(10):1847-1860.
APA	王思梦,王大钊,&黄昌.(2018).GPM卫星降水数据在黑河流域的适用性评价.自然资源学报,33(10),1847-1860.
MLA	王思梦,et al."GPM卫星降水数据在黑河流域的适用性评价".自然资源学报 33.10(2018):1847-1860.