Sentinel-2影像的云南千湖山细小冰湖提取方法Extraction method of alpine small glacial lake in Qianhu Mountain area of Yunnan province based on Sentinel-2 image
李宇宸,张军,刘陈立
摘要(Abstract):
针对复杂高山峡谷地区,冰湖监测容易受山体阴影和积雪的干扰,精度难以满足人们对冰湖信息的需求的问题,该文基于Sentinel-2影像和遥感影像分析技术分析云南千湖山片区高山冰湖,针对冰湖光谱信息复杂特性,采用不同方法探讨冰湖信息提取,并结合地形和同时期的谷歌影像矢量化结果对比分析不同方法对冰湖的提取效果。结果表明:(1)不同冰湖提取方法中,采用红边波段比值法和面向对象的方法与人机交互解译结果相比效果最好,Kappa系数达85%以上且能够准确地将山体阴影和冰湖区分开;(2)从数量和空间分布看,千湖山片区的冰湖分布在海拔4 000 m左右,集中在香格里拉县小中甸乡和上江乡局部地区,以三碧海、大黑海为中心,向四周散开,千湖山片区总共约有冰湖305个,沿着沟谷分布。
关键词(KeyWords): Sentinel-2;高山细小冰湖;遥感;千湖山片区
基金项目(Foundation): 高分辨率对地观测系统云南省产业化推广体系建设及示范应用项目(89-Y40G19-9001-18/20);; 双一流云南大学一流大学建设项目-地理学学科建设项目(C176210215)
作者(Author): 李宇宸,张军,刘陈立
DOI: 10.16251/j.cnki.1009-2307.2021.04.017
参考文献(References):
- [1] 黄启厅.干旱区山地冰川-冰湖协同演变遥感监测与气候变化响应机制研究[D].北京:中国科学院大学(中国科学院遥感与数字地球研究所),2017.(HUANG Qiting.Study on remotely sensed monitoring of the synergic evolution of alpine glacier-glacier lakes and their response mechanism to the climate change in the arid areas[D].Beijing:University of Chinese Academy of Sciences(Institute of Remote Sensing and Digital Earth,Chinese Academy of Sciences),2017.)
- [2] 陈晓清,崔鹏,杨忠,等.近15a喜玛拉雅山中段波曲流域冰川和冰湖变化[J].冰川冻土,2005,27(6):793-800.(CHEN Xiaoqing,CUI Peng,YANG Zhong,et al.Change in glaciers and glacier lakes in Boiqu River Basin,middle Himalayas during last 15 years[J].Journal of Glaciology and Geocryology,2005,27(6):793-800.)
- [3] 王欣,刘时银,姚晓军,等.我国喜马拉雅山区冰湖遥感调查与编目[J].地理学报,2010,65(1):29-36.(WANG Xin,LIU Shiyin,YAO Xiaojun,et al.Glacier lake investigation and inventory in the Chinese Himalayas based on the remote sensing data[J].Acta Geographica Sinica,2010,65(1):29-36.)
- [4] 李达,上官冬辉,黄维东.天山麦兹巴赫冰川湖1998—2017年面积变化相关研究[J/OL].冰川冻土.[2020-12-04].http://kns.cnki.net/kcms/detail/62.1072.P.20190305.1324.002.html.(LI Da,SHANGGUAN Donghui,HUANG Weidong.Study on the area change of Lake Merzbacher in the Tianshan Mountains during 1998-2017[J/OL].Journal of Glaciology and Geocryology.[2020-12-04].http://kns.cnki.net/kcms/detail/62.1072.P.20190305.1324.002.html.)
- [5] 张威,刘蓓蓓,李永化,等.云南千湖山第四纪冰川发育特点与环境变化[J].地理学报,2012,67(5):657-670.(ZHANG Wei,LIU Beibei,LI Yonghua,et al.Quaternary glacier development and environmental evolution in Qianhu Mountain,Northwestern Yunnan province[J].Acta Geographica Sinica,2012,67(5):657-670.)
- [6] 陈华芳,王金亮,陈忠,等.山地高原地区TM影像水体信息提取方法比较:以香格里拉县部分地区为例[J].遥感技术与应用,2004,19(6):479-484.(CHEN Huafang,WANG Jinliang,CHEN Zhong,et al.Comparison of water extraction methods in mountainous and plateau area from TM images:a case study of Shangri-La county[J].Remote Sensing Technology and Application,2004,19(6):479-484.)
- [7] 马山俊,张绍辉,曾昭朝,等.香格里拉千湖山省级重要湿地认定方法[J].内蒙古林业调查设计,2018,41(2):29-31,51.(MA Shanjun,ZHANG Shaohui,ZENG Zhaochao,et al.Provincial key wetland identification method for Thousand-Lake Mountain of Shangri-La[J].Inner Mongolia Forestry Investigation and Design,2018,41(2):29-31,51.)
- [8] 陈文倩,丁建丽,李艳华,等.基于国产GF-1遥感影像的水体提取方法[J].资源科学,2015,37(6):1166-1172.(CHEN Wenqian,DING Jianli,LI Yanhua,et al.Extraction of water information based on China-made GF-1 remote sense image[J].Resource Science,2015,37(6):1166-1172.)
- [9] 王海波,马明国.基于遥感的湖泊水域动态变化监测研究进展[J].遥感技术与应用,2009,24(5):674-684.(WANG Haibo,MA Mingguo.A review of monitoring change in lake water areas based on remote sensing[J].Remote Sensing Technology and Application,2009,24(5):674-684.)
- [10] ROUSE J W,HAAS R H,SCHELL J A,et al.Monitoring vegetation systems in the Great Plains with ERTS(Earth Resources Technology Satellite)[C]//Proceedings of the Third Earth Resources Technology Satellite Symposium.[S.l.]:[s.n.],1973:309-317.
- [11] MCFEETERS S K.The use of the normalized difference water index(NDWI) in the delineation of open water features[J].International Journal of Remote Sensing,1996,17(7):1425-1432.
- [12] 周成虎.遥感影像地学理解与分析[M].北京:科学出版社,2001.(ZHOU Chenghu.Geological understanding and analysis of remote sensing images[M].Beijing:Science Press,2001.)
- [13] FEYISA G L,MEILBY H,FENSHOLT R,et al.Automated water extraction index:a new technique for surface water mapping using Landsat imagery[J].Remote Sensing of Environment,2014,140:23-35.
- [14] 王航,秦奋.遥感影像水体提取研究综述[J].测绘科学,2018,43(5):23-32.(WANG Hang,QIN Fen.Summary of the research on water body extraction and application from remote sensing image[J].Science of Surveying and Mapping,2018,43(5):23-32.)