Glacier thickness and ice volume of the Northern Andes

Tropical glacier melt provides valuable water to surrounding communities, but climate change is projected to cause the demise of many of these glaciers within the coming century. Understanding the future of tropical glaciers requires a detailed record of their thicknesses and volumes, which is curre...

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Autores principales: Van Wyk de Vries, Maximillian, Carchipulla-Morales, David, Wickert, Andrew D., Minaya, Verónica G.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2022
Materias:
Data Descriptor
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9200720/
http://dx.doi.org/10.1038/s41597-022-01446-8
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author Van Wyk de Vries, Maximillian
Carchipulla-Morales, David
Wickert, Andrew D.
Minaya, Verónica G.
author_facet Van Wyk de Vries, Maximillian
Carchipulla-Morales, David
Wickert, Andrew D.
Minaya, Verónica G.
author_sort Van Wyk de Vries, Maximillian
collection PubMed
description Tropical glacier melt provides valuable water to surrounding communities, but climate change is projected to cause the demise of many of these glaciers within the coming century. Understanding the future of tropical glaciers requires a detailed record of their thicknesses and volumes, which is currently lacking in the Northern Andes. We calculate present-day (2015–2021) ice-thicknesses for all glaciers in Colombia and Ecuador using six different methods, and combine these into multi-model ensemble mean ice thickness and volume maps. We compare our results against available field-based measurements, and show that current ice volumes in Ecuador and Colombia are 2.49 ± 0.25 km(3) and 1.68 ± 0.24 km(3) respectively. We detected no motion on any remaining ice in Venezuela. The overall ice volume in the region, 4.17 ± 0.35 km(3), is half of the previous best estimate of 8.11 km(3). These data can be used to better evaluate the status and distribution of water resources, as input for models of future glacier change, and to assess regional geohazards associated with ice-clad volcanoes.
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spelling pubmed-92007202022-06-17 Glacier thickness and ice volume of the Northern Andes Van Wyk de Vries, Maximillian Carchipulla-Morales, David Wickert, Andrew D. Minaya, Verónica G. Sci Data Data Descriptor Tropical glacier melt provides valuable water to surrounding communities, but climate change is projected to cause the demise of many of these glaciers within the coming century. Understanding the future of tropical glaciers requires a detailed record of their thicknesses and volumes, which is currently lacking in the Northern Andes. We calculate present-day (2015–2021) ice-thicknesses for all glaciers in Colombia and Ecuador using six different methods, and combine these into multi-model ensemble mean ice thickness and volume maps. We compare our results against available field-based measurements, and show that current ice volumes in Ecuador and Colombia are 2.49 ± 0.25 km(3) and 1.68 ± 0.24 km(3) respectively. We detected no motion on any remaining ice in Venezuela. The overall ice volume in the region, 4.17 ± 0.35 km(3), is half of the previous best estimate of 8.11 km(3). These data can be used to better evaluate the status and distribution of water resources, as input for models of future glacier change, and to assess regional geohazards associated with ice-clad volcanoes. Nature Publishing Group UK 2022-06-15 /pmc/articles/PMC9200720/ http://dx.doi.org/10.1038/s41597-022-01446-8 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Data Descriptor
Van Wyk de Vries, Maximillian
Carchipulla-Morales, David
Wickert, Andrew D.
Minaya, Verónica G.
Glacier thickness and ice volume of the Northern Andes
title Glacier thickness and ice volume of the Northern Andes
title_full Glacier thickness and ice volume of the Northern Andes
title_fullStr Glacier thickness and ice volume of the Northern Andes
title_full_unstemmed Glacier thickness and ice volume of the Northern Andes
title_short Glacier thickness and ice volume of the Northern Andes
title_sort glacier thickness and ice volume of the northern andes
topic Data Descriptor
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9200720/
http://dx.doi.org/10.1038/s41597-022-01446-8
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