Abstract:
Surface speeds for a point close to the front of Kangerdlugssuaq Glacier based on satellite image feature tracking from 1985 to 2018.
Funding: The data have been collected over many years. Most recent project funding is NERC project CALISMO NE/P011365/1.
Keywords:
Kangerdlugssuag Glacier, Surface flow speeds
Bevan, S., & Luckman, A. (2019). Kangerdlugssuaq Glacier surface flow speeds from feature tracking, 1985-2018 (Version 1.0) [Data set]. UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation. https://doi.org/10.5285/c26e3873-e33e-45be-b76b-87f3b8827101
| Access Constraints: | No restrictions apply. |
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| Use Constraints: | 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/. |
| 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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| Personnel: | |
| Name | UK PDC |
| Role(s) | Metadata Author |
| Organisation | British Antarctic Survey |
| Name | Dr Suzanne Bevan |
| Role(s) | Investigator |
| Organisation | Swansea University |
| Name | Prof Adrian Luckman |
| Role(s) | Investigator |
| Organisation | Swansea University |
| Parent Dataset: | N/A |
| 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 also 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 algorithms have improved. Bevan et al. (2012) estimated the accuracy of all types of images up to 2012 to be better than 0.5 metres/day. | |
| Lineage: | Feature tracking of satellite images of Kangerdlugssuaq Glacier was used to measure surface velocities between April 1985 and November 2018. The satellite images include Landsat 5, Landsat 7, Landsat 8, ERS-1, ERS-2, Envisat Image Mode, TerraSAR-X and Sentinel 1A and B Single Look Complex images. The dataset has been compiled over approximately 20 years and processing algorithms and parameters have evolved and improved. The more recent measurements are likely to be the most accurate. | |
| Temporal Coverage: | |
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| Start Date | 1985-04-01 |
| End Date | 2018-10-31 |
| Spatial Coverage: | |
| Latitude | |
| Southernmost | 68.621 |
| Northernmost | 68.621 |
| Longitude | |
| Westernmost | -32.975 |
| Easternmost | -32.975 |
| 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 |
| Data Collection: | Image processing and feature tracking were carried out using Gamma Remote Sensing software. There are 341 data points. |
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| Data Storage: | The data is provided in ASCII text format. Column 1 is the date, Column 2 is the surface speed in metres/day. |
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