A satellite-derived glacier inventory for North Asia
This study outlines a consistent methodology for identifying glacier surfaces from Landsat 5, 7 and 8 imagery that is applied to map all mainland North Asian glaciers, providing the first methodologically consistent and complete glacier inventory for the region ~2010. We identify 5065 glaciers cover...
Published in: | Annals of Glaciology |
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Cambridge University Press
2016
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Online Access: | https://doi.org/10.3189/2016AoG71A008 https://doaj.org/article/3fe877109cd5430d8a13a1249a059300 |
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ftdoajarticles:oai:doaj.org/article:3fe877109cd5430d8a13a1249a059300 2023-05-15T13:29:29+02:00 A satellite-derived glacier inventory for North Asia Lucas Earl Alex Gardner 2016-03-01T00:00:00Z https://doi.org/10.3189/2016AoG71A008 https://doaj.org/article/3fe877109cd5430d8a13a1249a059300 EN eng Cambridge University Press https://www.cambridge.org/core/product/identifier/S0260305500000070/type/journal_article https://doaj.org/toc/0260-3055 https://doaj.org/toc/1727-5644 doi:10.3189/2016AoG71A008 0260-3055 1727-5644 https://doaj.org/article/3fe877109cd5430d8a13a1249a059300 Annals of Glaciology, Vol 57, Pp 50-60 (2016) climate change glacier delineation glacier mapping mountain glaciers remote sensing Meteorology. Climatology QC851-999 article 2016 ftdoajarticles https://doi.org/10.3189/2016AoG71A008 2023-03-12T01:31:57Z This study outlines a consistent methodology for identifying glacier surfaces from Landsat 5, 7 and 8 imagery that is applied to map all mainland North Asian glaciers, providing the first methodologically consistent and complete glacier inventory for the region ~2010. We identify 5065 glaciers covering a planimetric area of 2326 ± 186 km2, most of which is located in the Altai mountain subregion. The total glacier count is 15% higher, but the total glacier area is 32 ±11.6% lower, than the estimated glacier coverage provided in version 4.0 of the Randolph Glacier Inventory. We investigate the distribution of glacier size within North Asia and find that the majority of glaciers (82%) are smaller than 0.5 km2 but only account for a third of the total glacier area, with the largest 1 % (60 glaciers ≥ 5 km2 ) accounting for 28% of the total area. We present hypsometric characterizations of North Asian glaciers, largely substantiating existing findings that glaciers in this region are dominated by cold, relatively dry conditions. We provide a detailed assessment of errors and determine the uncertainty in our area estimate to be ±8.0%, with snow-cover uncertainty the largest contributing factor. Based on this assessment, the new glacier inventory presented here is more complete and of higher quality than other currently available data sources. Article in Journal/Newspaper Annals of Glaciology Directory of Open Access Journals: DOAJ Articles New Glacier ENVELOPE(162.400,162.400,-77.033,-77.033) Annals of Glaciology 57 71 50 60 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
climate change glacier delineation glacier mapping mountain glaciers remote sensing Meteorology. Climatology QC851-999 |
spellingShingle |
climate change glacier delineation glacier mapping mountain glaciers remote sensing Meteorology. Climatology QC851-999 Lucas Earl Alex Gardner A satellite-derived glacier inventory for North Asia |
topic_facet |
climate change glacier delineation glacier mapping mountain glaciers remote sensing Meteorology. Climatology QC851-999 |
description |
This study outlines a consistent methodology for identifying glacier surfaces from Landsat 5, 7 and 8 imagery that is applied to map all mainland North Asian glaciers, providing the first methodologically consistent and complete glacier inventory for the region ~2010. We identify 5065 glaciers covering a planimetric area of 2326 ± 186 km2, most of which is located in the Altai mountain subregion. The total glacier count is 15% higher, but the total glacier area is 32 ±11.6% lower, than the estimated glacier coverage provided in version 4.0 of the Randolph Glacier Inventory. We investigate the distribution of glacier size within North Asia and find that the majority of glaciers (82%) are smaller than 0.5 km2 but only account for a third of the total glacier area, with the largest 1 % (60 glaciers ≥ 5 km2 ) accounting for 28% of the total area. We present hypsometric characterizations of North Asian glaciers, largely substantiating existing findings that glaciers in this region are dominated by cold, relatively dry conditions. We provide a detailed assessment of errors and determine the uncertainty in our area estimate to be ±8.0%, with snow-cover uncertainty the largest contributing factor. Based on this assessment, the new glacier inventory presented here is more complete and of higher quality than other currently available data sources. |
format |
Article in Journal/Newspaper |
author |
Lucas Earl Alex Gardner |
author_facet |
Lucas Earl Alex Gardner |
author_sort |
Lucas Earl |
title |
A satellite-derived glacier inventory for North Asia |
title_short |
A satellite-derived glacier inventory for North Asia |
title_full |
A satellite-derived glacier inventory for North Asia |
title_fullStr |
A satellite-derived glacier inventory for North Asia |
title_full_unstemmed |
A satellite-derived glacier inventory for North Asia |
title_sort |
satellite-derived glacier inventory for north asia |
publisher |
Cambridge University Press |
publishDate |
2016 |
url |
https://doi.org/10.3189/2016AoG71A008 https://doaj.org/article/3fe877109cd5430d8a13a1249a059300 |
long_lat |
ENVELOPE(162.400,162.400,-77.033,-77.033) |
geographic |
New Glacier |
geographic_facet |
New Glacier |
genre |
Annals of Glaciology |
genre_facet |
Annals of Glaciology |
op_source |
Annals of Glaciology, Vol 57, Pp 50-60 (2016) |
op_relation |
https://www.cambridge.org/core/product/identifier/S0260305500000070/type/journal_article https://doaj.org/toc/0260-3055 https://doaj.org/toc/1727-5644 doi:10.3189/2016AoG71A008 0260-3055 1727-5644 https://doaj.org/article/3fe877109cd5430d8a13a1249a059300 |
op_doi |
https://doi.org/10.3189/2016AoG71A008 |
container_title |
Annals of Glaciology |
container_volume |
57 |
container_issue |
71 |
container_start_page |
50 |
op_container_end_page |
60 |
_version_ |
1766000879056453632 |