Surface topography and velocities of Ngozumpa Glacier, Nepal, with links to GeoTIFFs

• Main Authors: Benn, Douglas I, Thompson, Sarah, Luckman, Adrian
• Format: Dataset
• Language: English
• Published: PANGAEA 2017
• Subjects: DATE/TIME; File name; File size; Nepal; Ngozumpa_Glacier_DEM; Uniform resource locator/link to file; Journal of Glaciology; The Cryosphere; The Cryosphere Discussions
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.880056; https://doi.org/10.1594/PANGAEA.880056

The dataset consists of: three orthophotos and DEMs derived from Stereo Geo-Eye and Worldview imagery; and two velocity maps derived from TerraSAR-X imagery. The DEM-orthophoto pairs cover the debris-covered tongue of Ngozumpa Glacier at 5m horizontal resolution for 9 June 2010 (GeoEye-1), 23 December 2012 (GeoEye-1) and 5 January 2015 (WorldView-3). The 'annual' velocity map is based on feature tracking on images acquired on 29 January 2015 and 5 January 2016. The 'velocity difference' map shows the difference between the 'annual' values and velocities derived from images covering a minimal 'winter' period: 19 September 2014 to 18 January 2015.