Temporal and Spatial Analysis of Precipitation in Guizhou Based on TRMM 3B42 Satellite Data

2nd International Conference on Materials Science, Energy Technology and Environmental Engineering

材料科学;能源学;生态环境科学

Wu, Jianfeng^1 ; Zhang, Fengtai^1 ; Cao, Guangjie^1 ; Li, Wei^2 ; Zhao, Xuemei^1

School of Geography and Tourism, Guizhou Education University, Guiyang

550018, China^1

Institute of Mountain Resource, Guizhou Academy of Sciences, Guiyang

550001, China^2

关键词: Guizhou Province;    Remote sensing images;    Satellite precipitation;    Spatial analysis;    Summer precipitation;    Temporal and spatial;    Temporal and spatial distribution;    Winter precipitation;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/81/1/012076/pdf
DOI  :  10.1088/1755-1315/81/1/012076

来源: IOP

【 摘 要 】

Precipitation is an important part of the earth's climate system. This article makes full use of the advantages of remote sensing images. In this paper, the TRMM 3B42 satellite precipitation from 1998 to 2013 is selected as the data source and Guizhou Province as the research area. The temporal and spatial distribution characteristics of precipitation in Guizhou Province are studied by linear trend estimation, linear regression analysis and ArcGIS spatial analysis. The conclusion as below: Precipitation shows a decreasing trend from southeast to northwest in Guizhou Province. From the seasonal scale, Precipitation is mainly concentrated in summer and the least precipitation in winter. Over the past 16 years, precipitation in Guizhou Province has shown a fluctuating change. Summer precipitation trend is more obvious. And winter precipitation is not obvious.