articleJournal of GlaciologyJan 1, 2015HYBRID OA

The second Chinese glacier inventory: data, methods and results

WGWanqin GuoSLShiyin LiuJXJunli XuLWLizong WuDSDonghui Shangguan

Chinese Academy of Sciences · Northwest Normal University · +2 more institutions

Indexed incrossrefdoaj

Abstract

Abstract The second Chinese glacier inventory was compiled based on 218 Landsat TM/ETM + scenes acquired mainly during 2006–10. The widely used band ratio segmentation method was applied as the first step in delineating glacier outlines, and then intensive manual improvements were performed. The Shuttle Radar Topography Mission digital elevation model was used to derive altitudinal attributes of glaciers. The boundaries of some glaciers measured by real-time kinematic differential GPS or digitized from high-resolution images were used as references to validate the accuracy of the methods used to delineate glaciers, which resulted in positioning errors of ±10 m for manually improved clean-ice outlines and ±30 m…

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682
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11

Topics & keywords

Topics
Keywords
  • Glacier
  • Geology
  • Digital elevation model
  • Shuttle Radar Topography Mission
  • Differential GPS
  • Debris
  • Glacier mass balance
  • Remote sensing
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