[1]吴 淼,韩用顺*,张东水,等.表碛覆盖冰川信息提取方法——以波密县为例[J].山地学报,2017,(02):238-245.[doi:10.16089/j.cnki.1008-2786.000217]
　WU Miao,HAN Yongshun*,LI Dongshui,et al.Information Extraction Method of Debris-Covered Glaciers in Bomi County[J].Mountain Research,2017,(02):238-245.[doi:10.16089/j.cnki.1008-2786.000217]
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表碛覆盖冰川信息提取方法——以波密县为例()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2017年02期
页码:
238-245
栏目:
山地技术
出版日期:
2017-03-30

文章信息/Info

Title:
Information Extraction Method of Debris-Covered Glaciers in Bomi County
文章编号:
1008-2786-(2017)2-238-08
作者:
吴 淼1; 韩用顺1; 2*; 张东水2; 王 欣2; 格桑旺杰3
1.湘潭大学 土木工程与力学学院,湖南 湘潭411105;
2.湖南科技大学 资源环境与安全工程学院,湖南 湘潭411201;
3.西藏自治区公路局,西藏 拉萨 850015
Author(s):
WU Miao1; HAN Yongshun1; 2*; LI Dongshui2; WANG Xin2; Ge Sang Wangjie3
1. College of Civil Engineering and Mechanics,Xiangtan University,Xiangtan 411105,China;
2. School of Resource Environment and Safety Engineering,Hunan University of Science and Technology,Xiangtan 411201,China;
3. Highway Administration Bureau of Tibet Autonomous Region, Lasa 850015,China
关键词:
表碛覆盖冰川; 面向对象-波段比值法; 特征分区; 快速信息提取; 波密县
Keywords:
Debris-covered glacier;  OOBR Method;  Feature Zoning;  Rapid Information Extraction;  Bomi County
分类号:
P343.6
DOI:
10.16089/j.cnki.1008-2786.000217
文献标志码:
A
摘要:
针对表碛覆盖冰川提取困难的问题,本文结合TM影像、DEM和野外调查资料,基于地物光谱、地形和纹理特征,将研究区分为表碛覆盖冰川区、无表碛覆盖冰川区和阴影下冰川区,采用模糊逻辑方法建立定量化提取规则,综合利用了面向对象和波段比值两个方法的各自优点,建立面向对象-波段比值信息提取方法,进行了有无表碛物覆盖的冰川信息的分区提取,并以波密县为典型研究区,通过混淆矩阵进行精度分析。研究结果表明:1)提出的面向对象—波段比值法,能够较完整地提取研究区表碛覆盖冰川,精度可达93%,冰川信息提取总体精度为98%,kappa系数为0.97;2)研究区冰川总面积为7655.27km~2,占研究区总面积的46.18%,无表碛覆盖冰川、表碛覆盖冰川、阴影下冰川面积分别为5615.20km~2、65.13km~2、1974.94km~2,占总冰川73.35%、0.85%、25.80%。初步建立的表碛覆盖冰川自动信息提取方法可以为类似地区冰川遥感监测提供依据和参考。
Abstract:
Aiming at the difficulty of extracting the debris-covered glaciers by means of remote sensing images,the ground object spectra,topographical characteristics and texture features of glaciers in different zones are determined according to TM images combined with DEM and field investigation data. Correspondingly,glaciers in Bomi County are divided into three glacial zones,including debris-covered glacier,no debris covered glacier and shaded glacier. The quantitative rules for extracting different glacial regions are established through fuzzy logic method,therefore the respective advantages of object-oriented and band-ratio methods are comprehensively utilized. Meanwhile,an automatic multi-subarea interpretation model,known as the object-oriented & band-ratio model(abbreviated as OOBR model),is set up to extract diverse parts of glaciers rapidly. The precision of the extracted glacier information is tested with confusion matrix and field investigation data by taking the Bomi County as the typical case study area. The results show that:a)the proposed OOBR model is feasible to completely extract debris-covered glaciers in the study area with accuracy up to 93% and the overall accuracy of glaciers is up to 98% with the kappa coefficient to 0.97; b)the total area of glaciers is 77 655.27 square kilometers accounting for 46.18% of the total study area,and the areas of no debris covered glaciers,debris-covered glaciers and shaded glaciers are respectively 5615.20 square kilometers,65.13 square kilometers and 1974.94 square kilometers. It is better to draw the conclusion that the preliminarily established OOBR model can provide basis and references for remote sensing monitoring of glaciers in similar areas.

备注/Memo

备注/Memo:
基金项目(Foundation item):交通运输部科技计划项目(20153161T906); 岩土力学与工程安全湖南省重点实验室开放基金(16GES06); 特殊环境道路工程湖南省重点实验室开放基金(kfj120404); 湖南省研究生科研创新基金(CX2015B471)。[Ministry of Transport Science and Technology Program(20153161T906); Hunan Key Laboratory of Geomechanics and Engineering Safety(16GES06); Key Laboratory of Special Environment Road Engineering of Hunan province,Changsha University of Science & Technology(kfj120404); Hunan Provincial Innovation Foundation for Postgraduate(CX2015B471)]
作者简介(Biography):吴淼(1991-),女,江苏无锡人,硕士研究生,主要从事灾害遥感研究。 [Wu Miao(1991-),female,born in Wuxi,Jiangsu,M.Sc. candidate,mainly engaged in disaster remote sensing research] E-mail:wumiao199191@163.com
*通信作者(Corresponding author): 韩用顺(1974-),男,教授,主要从事山地灾害与3S技术及应用研究。 [Han Yong-shun(1974-),male,Professor,mainly engaged in mountain hazards,3S technologies and their applications] E-mail:yongshunhan@126.com
更新日期/Last Update: 2017-03-30