Algorithm for Extracting and Tracking Rainstorm Events Based on Time Series Raster-Formatted Datasets [基于时序栅格的暴雨事件提取与追踪方法] - Details

author：

Yang, G. (Yang, G..) ^[1] | Xue, C. (Xue, C..) ^[2] | Liu, J. (Liu, J..) ^[3] | Wu, Q. (Wu, Q..) ^[4] | Wu, C. (Wu, C..) ^[5]

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Scopus PKU CSCD

Abstract：

Based　on　evolution　characteristics　of　rainstorms,　we　propose　an　algorithm　for　extracting　and　tracking　rainstorm　events　with　long-term　raster-formatted　datasets.　The　first　step　is　the　rainstorm　extraction　in　the　temporal　domain.　We　calculate　the　cumulative　rainfall　of　each　grid　of　a　time　series,　and　identify　the　rainstorm　levels.　The　second　step　is　the　rainstorm　connection　in　a　spatial　domain:　connecting　the　adjacent　spatial　grids　tagged　by　rainstorm　in　a　rainstorm　object,　and　transforming　it　from　raster　format　to　the　vector　one　with　temporal,　spatial　and　thematic　information.　Then　rainstorm　is　tracked　in　the　spatiotemporal　domain.　The　relationship　between　storm　objects　will　be　fined　based　on　the　intersection　of　spatial　topologies　at　adjacent　moments,　and　the　rainstorm　objects　are　extracted　based　on　the　relationship,　and　calculate　rainstorm　event　information.　We　using　GPM-IMAGE　final　products,　station　datasets　and　radar　datasets　to　compare　and　verify　the　algorithm.　Experimental　results　show　that　the　algorithm　can　completely　extract　the　dynamic　development　process　of　rainstorm.　©　2019,　Editorial　Office　of　Journal　of　Applied　Sciences.　All　right　reserved.

Keyword：

Extracting; Integrated multi-satellie; Rainstorm event; Raster datasets; retrievals for GPM (IMERG); Tracking

Community：

[ 1 ] [Yang, G.]National & Local Joint Engineering Research Center of Satellite Geospatial Information Technology, Fuzhou University, Fuzhou, 350116, China
[ 2 ] [Yang, G.]Key Laboratory of Digital Earth Science, Chinese Academy of Sciences, Beijing, 100094, China
[ 3 ] [Xue, C.]Key Laboratory of Digital Earth Science, Chinese Academy of Sciences, Beijing, 100094, China
[ 4 ] [Xue, C.]Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100094, China
[ 5 ] [Liu, J.]Key Laboratory of Digital Earth Science, Chinese Academy of Sciences, Beijing, 100094, China
[ 6 ] [Wu, Q.]National & Local Joint Engineering Research Center of Satellite Geospatial Information Technology, Fuzhou University, Fuzhou, 350116, China
[ 7 ] [Wu, C.]Key Laboratory of Digital Earth Science, Chinese Academy of Sciences, Beijing, 100094, China

Reprint 's Address：

[Xue, C.]Key Laboratory of Digital Earth Science, Chinese Academy of SciencesChina

Email：

xuecj@radi.ac.cn

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Source ：

Journal of Applied Sciences

ISSN： 0255-8297

Year： 2019

Issue： 4

Volume： 37

Page： 510-518

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SCOPUS Cited Count：

ESI Highly Cited Papers on the List： 0 Unfold All

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Chinese Cited Count：

30 Days PV： 1

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