干旱区生态环境知识资源中心(Arid): Vegetation Mapping by Using GPM/DPR over the Mongolian Land

Arid

DOI	10.3390/rs11202386
	Vegetation Mapping by Using GPM/DPR over the Mongolian Land
	Nyamsuren, Baasankhuu 1,2; Nasahara, Kenlo Nishida 1,3; Kubota, Takuji 4; Masaki, Takeshi 5
通讯作者	Nyamsuren, Baasankhuu
来源期刊	REMOTE SENSING
EISSN	2072-4292
出版年	2019
卷号	11 期号:20
英文摘要	Mongolian steppe is one of the largest and important ecosystems. The degradation of grassland and the expansion of desert are occurring due to drought and desertification processes. We attempted monitoring of the broad-scale vegetation in Mongolia by a space-borne precipitation radar, which may complement typical approaches of vegetation monitoring (such as NDVI). We utilized the Global Precipitation Mission's (GPM) dual-frequency precipitation radar (DPR). We characterized backscatter (sigma(0)) of GPM/DPR's two microwave bands (Ku and Ka) with respect to the dominant vegetation zones (forest, grassland, desert). Both Ku and Ka radars' sigma(0) values were investigated for incidence angle dependency and the seasonal variation. As a result, the use of multi-angle, multi-band observations of GPM/DPR could help to characterize the vegetation zones. Especially, the sigma(0) at incidence angles between 1 degrees and 8 degrees represented useful characteristics of vegetation. Based on it, by using unsupervised clustering, we produced annual maps describing vegetation zones from 2014 to 2018. The result indicated that Mongolia experienced extensive changes in grassland and desert areas during the study years.
英文关键词	vegetation mapping Mongolia GPM/DPR backscatter incidence angle
类型	Article
语种	英语
国家	Japan ; Mongolia
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000498395800054
WOS关键词	SATELLITE ; RECORD ; COVER ; RADAR ; NDVI
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
EI主题词	2019-10-01
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310193
作者单位	1.Univ Tsukuba, Grad Sch Life & Environm Sci, Tennoudai 1-1-1, Tsukuba, Ibaraki 3058572, Japan; 2.Informat & Res Inst Meteorol Hydrol & Environm IR, Juulchiny St 5, Ulaanbaatar 15160, Mongolia; 3.Univ Tsukuba, Fac Life & Environm Sci, Tennoudai 1-1-1, Tsukuba, Ibaraki 3058572, Japan; 4.Japan Aerosp Explorat Agcy JAXA, Earth Observat Res Ctr, Sengen 2-1-1, Tsukuba, Ibaraki 3058505, Japan; 5.Remote Sensing Technol Ctr Japan RESTEC, Tennoudai 1-1-1, Tsukuba, Ibaraki 3058572, Japan
推荐引用方式 GB/T 7714	Nyamsuren, Baasankhuu,Nasahara, Kenlo Nishida,Kubota, Takuji,et al. Vegetation Mapping by Using GPM/DPR over the Mongolian Land[J],2019,11(20).
APA	Nyamsuren, Baasankhuu,Nasahara, Kenlo Nishida,Kubota, Takuji,&Masaki, Takeshi.(2019).Vegetation Mapping by Using GPM/DPR over the Mongolian Land.REMOTE SENSING,11(20).
MLA	Nyamsuren, Baasankhuu,et al."Vegetation Mapping by Using GPM/DPR over the Mongolian Land".REMOTE SENSING 11.20(2019).