Glacier area changes in the Arctic and high latitudes using satellite remote sensing

ABSTRACTGlaciers have been retreating over the last century as a result of climate change, particularly in the Arctic, causing sea levels to rise, affecting coastal communities and potentially changing global weather and climate patterns. In this study, we mapped 2203 glaciers in Novaya Zemlya (Russ...

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Bibliographic Details
Published in:Journal of Maps
Main Authors: Asim Ali, Paul Dunlop, Sonya Coleman, Dermot Kerr, Robert W. McNabb, Riko Noormets
Format: Article in Journal/Newspaper
Language:English
Published: Taylor & Francis Group 2023
Subjects:
Landsat
glaciers
OBIA
Google Earth Engine
Maps
G3180-9980
Arctic
Baffin Island
Greenland
Penny Ice Cap
Qeqertarsuaq
Baffin
Climate change
glacier
Ice cap
Novaya Zemlya
Alaska
Online Access:https://doi.org/10.1080/17445647.2023.2247416
https://doaj.org/article/ca0f1019dac84c66bc98a504a16846ca
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Summary:ABSTRACTGlaciers have been retreating over the last century as a result of climate change, particularly in the Arctic, causing sea levels to rise, affecting coastal communities and potentially changing global weather and climate patterns. In this study, we mapped 2203 glaciers in Novaya Zemlya (Russian Arctic), Penny Ice Cap (Baffin Island), Disko Island (Qeqertarsuaq, Greenland) and part of Kenai (Alaska), using Object-Based Image Analysis (OBIA) applied to multispectral Landsat satellite imagery in Google Earth Engine (GEE) to quantify the glacier area changes over three decades. Between 1985–89 and 2019–21, the results show that the overall glacier area loss in Novaya Zemlya is 1319 ± 419 km2 (5.7% of area), 452 ± 227 km2 (6.6%) for Penny Ice Cap, 457 ± 168 km2 (23.6%) in Disko Island and 196 ± 84 km2 (25.7%) in Kenai. A total of seventy-three glaciers have disappeared completely, including sixty-nine on Disko Island, three in Novaya Zemlya and one in Kenai.

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