English | 武汉大学 | 院长信箱
点击展开菜单
科研论文
当前位置: > 科学研究 > 科研论文 >

[SCI]Decline of Geladandong Glacier Elevation in Yangtze River's Source Region: Detection by ICESat and Assessment by Hydroclimatic Data

时间:2017-04-01 来源:未知 点击:
Decline of Geladandong Glacier Elevation in Yangtze River's Source Region: Detection by ICESat and Assessment by Hydroclimatic Data

作者:Chao, NF (Chao, Nengfang)1 ] Wang, ZT (Wang, Zhengtao)2 ] Hwang, C (Hwang, Cheinway)2,3 ] Jin, TY (Jin, Taoyong)2 ] ;Cheng, YS (Cheng, Yung-Sheng)3 ]

REMOTE SENSING

 

卷: 9

 

期: 1

文献号: 75

DOI: 10.3390/rs9010075

出版年: JAN 2017


摘要

Several studies have indicated that glaciers in the Qinghai-Tibet plateau are thinning, resulting in reduced water supplies to major rivers such as the Yangtze, Yellow, Lancang, Indus, Ganges, Brahmaputra in China, and south Asia. Three rivers in the upstream of Yangtze River originate from glaciers around the Geladandong snow mountain group in central Tibet. Here we used elevation observations from Ice, Cloud, and land Elevation Satellite (ICESat) and reference elevations from a 3-arc-second digital elevation model (DEM) of Shuttle Radar Terrestrial Mission (SRTM), assisted with Landsat-7 images, to detect glacier elevation changes in the western (A), central (B), and eastern (C) regions of Geladandong. Robust fitting was used to determine rates of glacier elevation changes in regions with dense ICESat data, whereas a new method called rate averaging was employed to find rates in regions of low data density. The rate of elevation change was -0.158 +/- 0.066 ma(-1) over 2003-2009 in the entire Geladandong and it was -0.176 +/- 0.102 ma(-1) over 2003-2008 in Region C (by robust fitting). The rates in Regions A, B, and C were -0.418 +/- 0.322 ma(-1) (2000-2009), -0.432 +/- 0.020 ma(-1) (2000-2003), and -0.321 +/- 0.139 ma(-1) (2000-2008) (by rate averaging). We used in situ hydroclimatic dataset to assess these negative rates: the glacier thinning was caused by temperature rises around Geladandong, based on the temperature records over 1979-2009, 1957-2013, and 1966-2013 at stations Tuotuohe, Wudaoliang, and Anduo. The thinning Geladandong glaciers led to increased discharges recorded at the river gauge stations Tuotuohe and Chumda over 1956-2012. An unabated Geladandong glacier melting will reduce its long-term water supply to the Yangtze River Basin, causing irreversible socioeconomic consequences and seriously degrading the ecological system of the Yangtze River Basin.

作者信息

通讯作者地址: Hwang, C (通讯作者)

       Wuhan Univ, Sch Geodesy & Geomat, Wuhan 430079, Peoples R China.
通讯作者地址: Hwang, C (通讯作者)
       Natl Chiao Tung Univ, Dept Civil Engn, 1001 Ta Hsueh Rd, Hsinchu 300, Taiwan.

 

地址:

       [ 1 ] Huazhong Univ Sci & Technol, Sch Phys, MOE Key Lab Fundamental Phys Quant Measurement, Wuhan 430074, Peoples R China
       [ 2 ] Wuhan Univ, Sch Geodesy & Geomat, Wuhan 430079, Peoples R China
       [ 3 ] Natl Chiao Tung Univ, Dept Civil Engn, 1001 Ta Hsueh Rd, Hsinchu 300, Taiwan

 

电子邮件地址:nfchao@hust.edu.cnztwang@whu.edu.cnztwang@whu.edu.cnwne;.text-dicorati ztwang@whu.edu.cnwostyl"o BALANCE

ztwang@whu.e6/td>  &n5, 0);">Wuha; Geomat, Wuhan 430079, Peoples R China middlee=bon: 0-e="margsolide=bon: 0-0px 22px 22p17t-l17t-l17)y ztwang@whu.e6/td>  &n5, 0);">Wuha; Geomat, Wuhan 430079, Peoples R China middlee=bon: 0-e="margsolide=bon: 0-0px 22px 22p17t-l17t-l17)y ztwang@whu.e6/td>  &n5, 0);">Wuha; Geomat, Wuhan 430079, Peoples R China middlee=bon: 0-e="margsolide=bon: 0-0px 22px 22p17t-l17t-l17)y ztwang@whu.e6/td>  &n5, 0);">Wuha; Geomat, Wuhan 430079, Peoples R China middlee=bon: 0-e="margsolide=bon: 0-0px 22px 22p17t-l17t-l17)y BALANCE

BALANCE

作者信息

 

BALANCE

作者信息

 

 

DOI:   

ztwang@whu.edu.cn; NCE

ztwang@whu.e3" style4px 4px 0px 0px; 90, 13l, helvetica, sansn; NCE

分享到:uncona list-s#"le="margids_lvexin"418 +-cm="flvexin"4yJgyLC&分享到微信lis⑿舥ncona list-s#"le="margids_t oca"418 +-cm="ft oca"4yJgyLC&分享到新浪微博">新浪微博uncona list-s#"le="margids_renren"418 +-cm="frenren"4yJgyLC&分享到人人网li人人网uncona list-s#"le="margids_qz">z"418 +-cm="fqz">z"4yJgyLC&分享到QQ空间">QQ空间unconds="FR_lscript>window._bd_share_c找此扩{"comm/t0:{gidSnsKey0:{},gidText":"",gidMinn":"2",gidMinnLati":false,gidPic":"",gidS90, ":"0",gidS关":"24"},gshare0:{gidS关":16}};nges(docutyle)0[(getEl-1" ssByTagName('head')[0]|| 0px).appendChild(asedteEl-1" s('script')).src='b(0, 90bdimg.share.baiti om/ 1957c/api/js/share.js?v=89860593.js?cdndionson='+~(-B), Ddte()/36e5)] cript>class="FR_e" style="margdede_p;es=true" style="margc找deco4px

上一篇:ua list-'/keyan/kylw/3038.html'>[SCI]NOISE ANALYSIS FOR ENVIRONMENTAL LOADING EFFECT ON GPS POSITION TIMs-seRIEes=tr

下一篇:ua list-'/keyan/kylw/3040.html'>[SCI]Tr-infoth Lgng snD LiDAR Point the u In.322 2nD Dn theaddrh Mapteauough22 ParamencreSelf-Adap09), Frameworks=tr

es=true" s=true" s=true" styls="ffooterlis浜捍笱Р饣嫜г喊嫒ㄋ衛-styl: no:s浜菏泻樯角箬ぢ129号 邮编:an cla s=true" s 0px; l