Kangerdlugssuaq Glacier ice front positions, 1985-2018
GB/NERC/BAS/PDC/01120
Abstract:
Ice front positions for Kangerdlugssuaq Glacier, Greenland, based on digitisation of satellite images between 1985 to 2018.
Funding: The data have been collected over many years. Most recent project funding is NERC project CALISMO NE/P011365/1.
Citation:
Bevan, S., & Luckman, A. (2019). Kangerdlugssuaq Glacier ice front positions, 1985-2018 (Version 1.0) [Data set]. UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation. https://doi.org/10.5285/b317f707-2ef6-449c-acc3-6bb087efecb1
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License
| Access: | No restrictions apply. |
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| Use: | This data is governed by the NERC data policy http://www.nerc.ac.uk/research/sites/data/policy/ and supplied under Open Government Licence v.3 http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/. |
Basic Information
| Creation Date: | 2018-12-06 |
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| Dataset Progress: | Complete |
| Dataset Language: | English |
| ISO Topic Categories: |
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| Parameters: |
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Additional Information
| Reference: | Submitted to The Cryosphere Discussions, 27/11/2018. 'Warming of SE Greenland shelf waters in 2016 primes large glacier for runaway retreat'. Bevan et al. Data to 2012 were published in: S. L. Bevan, et al. (2012). 'Glacier dynamics over the last quarter of a century at Helheim, Kangerdlugssuaq and 14 other major Greenland outlet glaciers'. The Cryosphere 6(5):923-937. |
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| Quality: | The accuracy of the data varies according to the initial spatial resolution and geolocation of the images and is likely to improve throughout the time sequence as processing and orbit vectors have improved. Bevan et al. (2012) estimated the accuracy for all types of imagery up to 2012 to be at least +/- 76 m. | |
| Lineage/Methodology: | The ice front of Kangerdlugssuaq Glacier was manually digitised on 733 satellite images acquired between April 1985 and November 2018. The satellite images include Landsat 5, Landsat 7, Landsat 8, ERS-1, ERS-2, Envisat Image Mode and Wideswath Mode, TerraSAR-X and Sentinel 1A and B Interferometric mode Ground Range Detected (IW GRD) images. The intersection points of the frontal vectors with 23 straight flow-parallel lines spaced at 160 m intervals were averaged to create mean ice-front positions. | |
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Extent
| Temporal Coverage: | |
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| Start Date | 1985-04-01 |
| End Date | 2018-11-11 |
| Spatial Coverage: | |
| Latitude | |
| Southernmost | 68.58 |
| Northernmost | 68.58 |
| Longitude | |
| Westernmost | -32.85 |
| Easternmost | -32.85 |
| Altitude | |
| Min Altitude | N/A |
| Max Altitude | N/A |
| Depth | |
| Min Depth | N/A |
| Max Depth | N/A |
| Location: | |
| Location | Arctic |
| Detailed Location | Kangerdlugssuaq Glacier, Greenland |
Instrumentation
| Data Collection: | The digitisation was carried out using Gamma Remote Sensing software module Polyras. There are 733 data points. |
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Storage
| Data Storage: | The data is provided in ASCII text format. Column 1 is the date, Column 2 is the ice-front location in m. |
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