Brief Communication: Recent estimates of glacier mass loss for western North America from laser altimetry
Glaciers in western North American outside of Alaska are often overlooked in global studies because their potential to contribute to changes in sea level is small. Nonetheless, these glaciers represent important sources of freshwater, especially during times of drought. Differencing recent ICESat-2...
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ftcopernicus:oai:publications.copernicus.org:egusphere115460 2024-09-09T19:41:14+00:00 Brief Communication: Recent estimates of glacier mass loss for western North America from laser altimetry Menounos, Brian Gardner, Alex Forentine, Caitlyn Fountain, Andrew 2024-03-18 application/pdf https://doi.org/10.5194/egusphere-2023-2408 https://egusphere.copernicus.org/preprints/2023/egusphere-2023-2408/ eng eng doi:10.5194/egusphere-2023-2408 https://egusphere.copernicus.org/preprints/2023/egusphere-2023-2408/ eISSN: Text 2024 ftcopernicus https://doi.org/10.5194/egusphere-2023-2408 2024-08-28T05:24:15Z Glaciers in western North American outside of Alaska are often overlooked in global studies because their potential to contribute to changes in sea level is small. Nonetheless, these glaciers represent important sources of freshwater, especially during times of drought. Differencing recent ICESat-2 data from a digital elevation model derived from a combination of synthetic aperture radar data (TerraSAR-X/TanDEM-X), we find that over the period 2013–2020, glaciers in western North America lost mass at a rate of - 12.3 ± 3.5 <svg:svg xmlns:svg="http://www.w3.org/2000/svg" width="58pt" height="10pt" class="svg-formula" dspmath="mathimg" md5hash="d6d98fe5d3b29fd7ecefd5212fc7b142"><svg:image xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="tc-18-889-2024-ie00001.svg" width="58pt" height="10pt" src="tc-18-889-2024-ie00001.png"/> </svg:svg> Gt yr −1 . This rate is comparable to the rate of mass loss ( - 11.7 ± 1.0 <svg:svg xmlns:svg="http://www.w3.org/2000/svg" width="58pt" height="10pt" class="svg-formula" dspmath="mathimg" md5hash="4c00447ab43683ec038503585e67ee14"><svg:image xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="tc-18-889-2024-ie00002.svg" width="58pt" height="10pt" src="tc-18-889-2024-ie00002.png"/> </svg:svg> Gt yr −1 ) for the period 2018–2022 calculated through trend analysis using ICESat-2 and Global Ecosystems Dynamics Investigation (GEDI) data. Text glacier glaciers Alaska Copernicus Publications: E-Journals |
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description |
Glaciers in western North American outside of Alaska are often overlooked in global studies because their potential to contribute to changes in sea level is small. Nonetheless, these glaciers represent important sources of freshwater, especially during times of drought. Differencing recent ICESat-2 data from a digital elevation model derived from a combination of synthetic aperture radar data (TerraSAR-X/TanDEM-X), we find that over the period 2013–2020, glaciers in western North America lost mass at a rate of - 12.3 ± 3.5 <svg:svg xmlns:svg="http://www.w3.org/2000/svg" width="58pt" height="10pt" class="svg-formula" dspmath="mathimg" md5hash="d6d98fe5d3b29fd7ecefd5212fc7b142"><svg:image xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="tc-18-889-2024-ie00001.svg" width="58pt" height="10pt" src="tc-18-889-2024-ie00001.png"/> </svg:svg> Gt yr −1 . This rate is comparable to the rate of mass loss ( - 11.7 ± 1.0 <svg:svg xmlns:svg="http://www.w3.org/2000/svg" width="58pt" height="10pt" class="svg-formula" dspmath="mathimg" md5hash="4c00447ab43683ec038503585e67ee14"><svg:image xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="tc-18-889-2024-ie00002.svg" width="58pt" height="10pt" src="tc-18-889-2024-ie00002.png"/> </svg:svg> Gt yr −1 ) for the period 2018–2022 calculated through trend analysis using ICESat-2 and Global Ecosystems Dynamics Investigation (GEDI) data. |
format |
Text |
author |
Menounos, Brian Gardner, Alex Forentine, Caitlyn Fountain, Andrew |
spellingShingle |
Menounos, Brian Gardner, Alex Forentine, Caitlyn Fountain, Andrew Brief Communication: Recent estimates of glacier mass loss for western North America from laser altimetry |
author_facet |
Menounos, Brian Gardner, Alex Forentine, Caitlyn Fountain, Andrew |
author_sort |
Menounos, Brian |
title |
Brief Communication: Recent estimates of glacier mass loss for western North America from laser altimetry |
title_short |
Brief Communication: Recent estimates of glacier mass loss for western North America from laser altimetry |
title_full |
Brief Communication: Recent estimates of glacier mass loss for western North America from laser altimetry |
title_fullStr |
Brief Communication: Recent estimates of glacier mass loss for western North America from laser altimetry |
title_full_unstemmed |
Brief Communication: Recent estimates of glacier mass loss for western North America from laser altimetry |
title_sort |
brief communication: recent estimates of glacier mass loss for western north america from laser altimetry |
publishDate |
2024 |
url |
https://doi.org/10.5194/egusphere-2023-2408 https://egusphere.copernicus.org/preprints/2023/egusphere-2023-2408/ |
genre |
glacier glaciers Alaska |
genre_facet |
glacier glaciers Alaska |
op_source |
eISSN: |
op_relation |
doi:10.5194/egusphere-2023-2408 https://egusphere.copernicus.org/preprints/2023/egusphere-2023-2408/ |
op_doi |
https://doi.org/10.5194/egusphere-2023-2408 |
_version_ |
1809910672871391232 |