Articles | Volume 6, issue 3
https://doi.org/10.5194/esurf-6-551-2018
https://doi.org/10.5194/esurf-6-551-2018
Research article
 | 
13 Jul 2018
Research article |  | 13 Jul 2018

The Google Earth Engine Digitisation Tool (GEEDiT) and the Margin change Quantification Tool (MaQiT) – simple tools for the rapid mapping and quantification of changing Earth surface margins

James M. Lea

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Benn, D. I., Åström, J., Zwinger, T., Todd, J., Nick, F. M., Cook, S., Hulton, N. R., and Luckman, A.: Melt-under-cutting and buoyancy-driven calving from tidewater glaciers: new insights from discrete element and continuum model simulations, J. Glaciol., 63, 691–702, 2017.
Bevan, S. L., Luckman, A. J., and Murray, T.: Glacier dynamics over the last quarter of a century at Helheim, Kangerdlugssuaq and 14 other major Greenland outlet glaciers, The Cryosphere, 6, 923–937, https://doi.org/10.5194/tc-6-923-2012, 2012.
Björnsson, H., Pálsson, F., and Guðmundsson, S.: Jökulsárlón at Breiðamerkursanður, Vatnajökull, Iceland: 20th century changes and future outlook, Jökull, 20th century changes and future outlook, Jökull, 50, 1–18, 2001.
Bunce, C., Carr, J. R., Nienow, P. W., Ross, N., and Killick, R.: Ice front change of marine-terminating outlet glaciers in northwest and southeast Greenland during the 21st century, J. Glaciol., 1–13, 2018.
Carr, J. R., Stokes, C. R., and Vieli, A.: Threefold increase in marine-terminating outlet glacier retreat rates across the Atlantic Arctic: 1992–2010, Ann. Glaciol., 58, 72–91, 2017.
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Short summary
The new, free and easy-to-use tools in this paper (GEEDiT, GEEDiT-Reviewer and MaQiT) allow users to visualise, map and review margins from full satellite records of Landsat 4–8 and Sentinel 1–2 in addition to quantifying these margin changes with unprecedented speed. This allows previously prohibitive volumes of remote-sensing data to be analysed easily, flexibly and rapidly. These tools have potential applications across the geosciences for the exploration and analysis of satellite imagery.
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