Rapid decline in river icings detected in Arctic Alaska: Implications for a changing hydrologic cycle and river ecosystems ...
Arctic river icings are surface ice accumulations that can be >10 km2 in area and >10 m thick. They commonly impact the hydrology, geomorphology, and ecology of Arctic river environments. Previous examination of icing dynamics in Arctic Alaska found no substantial changes in extent through 200...
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ftdatacite:10.17615/1c7f-fr10 2024-03-31T07:50:01+00:00 Rapid decline in river icings detected in Arctic Alaska: Implications for a changing hydrologic cycle and river ecosystems ... Pavelsky, T.M. Zarnetske, J.P. 2017 https://dx.doi.org/10.17615/1c7f-fr10 https://cdr.lib.unc.edu/concern/articles/fn107780f en eng Blackwell Publishing Ltd In Copyright http://rightsstatements.org/vocab/InC/1.0/ Text article-journal Article ScholarlyArticle 2017 ftdatacite https://doi.org/10.17615/1c7f-fr10 2024-03-04T11:43:12Z Arctic river icings are surface ice accumulations that can be >10 km2 in area and >10 m thick. They commonly impact the hydrology, geomorphology, and ecology of Arctic river environments. Previous examination of icing dynamics in Arctic Alaska found no substantial changes in extent through 2005. However, here we use daily time series of satellite imagery for 2000–2015 to demonstrate that the temporal persistence and minimum summertime extent of large icings in part of Arctic Alaska and Canada have declined rapidly. We identified 122 large ephemeral icings, and 70 are disappearing significantly earlier in the summer, with a mean trend of −1.6 ± 0.9 day−1 for fully ephemeral features. Additionally, 14 of 25 icings that usually persist through the summer have significantly smaller minimum extents (−2.6 ± 1.6% yr−1). These declines are remarkably rapid and suggest that Arctic hydroclimatic systems generating icings, and their associated ecosystems, are changing rapidly. ... Text Arctic Alaska DataCite Metadata Store (German National Library of Science and Technology) Arctic Canada |
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DataCite Metadata Store (German National Library of Science and Technology) |
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language |
English |
description |
Arctic river icings are surface ice accumulations that can be >10 km2 in area and >10 m thick. They commonly impact the hydrology, geomorphology, and ecology of Arctic river environments. Previous examination of icing dynamics in Arctic Alaska found no substantial changes in extent through 2005. However, here we use daily time series of satellite imagery for 2000–2015 to demonstrate that the temporal persistence and minimum summertime extent of large icings in part of Arctic Alaska and Canada have declined rapidly. We identified 122 large ephemeral icings, and 70 are disappearing significantly earlier in the summer, with a mean trend of −1.6 ± 0.9 day−1 for fully ephemeral features. Additionally, 14 of 25 icings that usually persist through the summer have significantly smaller minimum extents (−2.6 ± 1.6% yr−1). These declines are remarkably rapid and suggest that Arctic hydroclimatic systems generating icings, and their associated ecosystems, are changing rapidly. ... |
format |
Text |
author |
Pavelsky, T.M. Zarnetske, J.P. |
spellingShingle |
Pavelsky, T.M. Zarnetske, J.P. Rapid decline in river icings detected in Arctic Alaska: Implications for a changing hydrologic cycle and river ecosystems ... |
author_facet |
Pavelsky, T.M. Zarnetske, J.P. |
author_sort |
Pavelsky, T.M. |
title |
Rapid decline in river icings detected in Arctic Alaska: Implications for a changing hydrologic cycle and river ecosystems ... |
title_short |
Rapid decline in river icings detected in Arctic Alaska: Implications for a changing hydrologic cycle and river ecosystems ... |
title_full |
Rapid decline in river icings detected in Arctic Alaska: Implications for a changing hydrologic cycle and river ecosystems ... |
title_fullStr |
Rapid decline in river icings detected in Arctic Alaska: Implications for a changing hydrologic cycle and river ecosystems ... |
title_full_unstemmed |
Rapid decline in river icings detected in Arctic Alaska: Implications for a changing hydrologic cycle and river ecosystems ... |
title_sort |
rapid decline in river icings detected in arctic alaska: implications for a changing hydrologic cycle and river ecosystems ... |
publisher |
Blackwell Publishing Ltd |
publishDate |
2017 |
url |
https://dx.doi.org/10.17615/1c7f-fr10 https://cdr.lib.unc.edu/concern/articles/fn107780f |
geographic |
Arctic Canada |
geographic_facet |
Arctic Canada |
genre |
Arctic Alaska |
genre_facet |
Arctic Alaska |
op_rights |
In Copyright http://rightsstatements.org/vocab/InC/1.0/ |
op_doi |
https://doi.org/10.17615/1c7f-fr10 |
_version_ |
1795028085423210496 |