Reconstructing glacial outburst floods (jökulhlaups) from geomorphology: challenges, solutions, and an enhanced interpretive framework
Glacial outburst floods (jökulhlaups) have been significant drivers of landscape change across Earth throughout the Quaternary and are a contemporary hazard in Arctic and alpine regions worldwide. Geomorphologic evidence is a foundation for reconstructing past and contemporary flood events and using...
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ftloughboroughun:oai:figshare.com:article/16996936 2023-05-15T15:08:32+02:00 Reconstructing glacial outburst floods (jökulhlaups) from geomorphology: challenges, solutions, and an enhanced interpretive framework Greta Wells Andrew Dugmore Timothy Beach Edwin Baynes Þorsteinn Sæmundsson Sheryl Luzzadder-Beach 2021-11-12T11:14:27Z https://figshare.com/articles/journal_contribution/Reconstructing_glacial_outburst_floods_j_kulhlaups_from_geomorphology_challenges_solutions_and_an_enhanced_interpretive_framework/16996936 unknown 2134/16996936.v1 https://figshare.com/articles/journal_contribution/Reconstructing_glacial_outburst_floods_j_kulhlaups_from_geomorphology_challenges_solutions_and_an_enhanced_interpretive_framework/16996936 CC BY-NC-ND 4.0 CC-BY-NC-ND Uncategorized Geography Physical Geography and Environmental Geoscience Environmental Science and Management Text Journal contribution 2021 ftloughboroughun 2022-01-01T19:05:59Z Glacial outburst floods (jökulhlaups) have been significant drivers of landscape change across Earth throughout the Quaternary and are a contemporary hazard in Arctic and alpine regions worldwide. Geomorphologic evidence is a foundation for reconstructing past and contemporary flood events and using additional analytical methods such as geochronology and paleohydraulics. Yet, accurate interpretation of jökulhlaup landforms and depositional sequences poses a persistent challenge due to complex controls on flood hydraulics and landscape evolution. Researchers have developed numerous strategies to reduce or resolve these challenges, but a comprehensive, globally applicable model to interpret flood evidence outside of sedimentary environments is lacking. This article synthesizes existing case studies to describe jökulhlaup geomorphologic interpretive challenges, discuss strategies to resolve them, and present a conceptual model of flood landform assemblages to illustrate hydraulic and environmental controls on resultant geomorphologic impacts. This enhanced interpretive framework aids researchers in identifying, interpreting, and testing geomorphologic evidence to reconstruct past jökulhlaups and predict future flood impacts as robustly as possible at a global, landscape-wide scale. Understanding jökulhlaup geomorphology yields insight into glacial lake and ice margin dynamics, the role of extreme events in landscape evolution, and interactions between climate, ice sheets, and hydrology. Moreover, it is increasingly important as glacial outburst floods may become more frequent due to climate-driven ice retreat, advancing predictive capacities to mitigate societal risk downstream. Other Non-Article Part of Journal/Newspaper Arctic Loughborough University: Figshare Arctic Glacial Lake ENVELOPE(-129.463,-129.463,58.259,58.259) |
institution |
Open Polar |
collection |
Loughborough University: Figshare |
op_collection_id |
ftloughboroughun |
language |
unknown |
topic |
Uncategorized Geography Physical Geography and Environmental Geoscience Environmental Science and Management |
spellingShingle |
Uncategorized Geography Physical Geography and Environmental Geoscience Environmental Science and Management Greta Wells Andrew Dugmore Timothy Beach Edwin Baynes Þorsteinn Sæmundsson Sheryl Luzzadder-Beach Reconstructing glacial outburst floods (jökulhlaups) from geomorphology: challenges, solutions, and an enhanced interpretive framework |
topic_facet |
Uncategorized Geography Physical Geography and Environmental Geoscience Environmental Science and Management |
description |
Glacial outburst floods (jökulhlaups) have been significant drivers of landscape change across Earth throughout the Quaternary and are a contemporary hazard in Arctic and alpine regions worldwide. Geomorphologic evidence is a foundation for reconstructing past and contemporary flood events and using additional analytical methods such as geochronology and paleohydraulics. Yet, accurate interpretation of jökulhlaup landforms and depositional sequences poses a persistent challenge due to complex controls on flood hydraulics and landscape evolution. Researchers have developed numerous strategies to reduce or resolve these challenges, but a comprehensive, globally applicable model to interpret flood evidence outside of sedimentary environments is lacking. This article synthesizes existing case studies to describe jökulhlaup geomorphologic interpretive challenges, discuss strategies to resolve them, and present a conceptual model of flood landform assemblages to illustrate hydraulic and environmental controls on resultant geomorphologic impacts. This enhanced interpretive framework aids researchers in identifying, interpreting, and testing geomorphologic evidence to reconstruct past jökulhlaups and predict future flood impacts as robustly as possible at a global, landscape-wide scale. Understanding jökulhlaup geomorphology yields insight into glacial lake and ice margin dynamics, the role of extreme events in landscape evolution, and interactions between climate, ice sheets, and hydrology. Moreover, it is increasingly important as glacial outburst floods may become more frequent due to climate-driven ice retreat, advancing predictive capacities to mitigate societal risk downstream. |
format |
Other Non-Article Part of Journal/Newspaper |
author |
Greta Wells Andrew Dugmore Timothy Beach Edwin Baynes Þorsteinn Sæmundsson Sheryl Luzzadder-Beach |
author_facet |
Greta Wells Andrew Dugmore Timothy Beach Edwin Baynes Þorsteinn Sæmundsson Sheryl Luzzadder-Beach |
author_sort |
Greta Wells |
title |
Reconstructing glacial outburst floods (jökulhlaups) from geomorphology: challenges, solutions, and an enhanced interpretive framework |
title_short |
Reconstructing glacial outburst floods (jökulhlaups) from geomorphology: challenges, solutions, and an enhanced interpretive framework |
title_full |
Reconstructing glacial outburst floods (jökulhlaups) from geomorphology: challenges, solutions, and an enhanced interpretive framework |
title_fullStr |
Reconstructing glacial outburst floods (jökulhlaups) from geomorphology: challenges, solutions, and an enhanced interpretive framework |
title_full_unstemmed |
Reconstructing glacial outburst floods (jökulhlaups) from geomorphology: challenges, solutions, and an enhanced interpretive framework |
title_sort |
reconstructing glacial outburst floods (jökulhlaups) from geomorphology: challenges, solutions, and an enhanced interpretive framework |
publishDate |
2021 |
url |
https://figshare.com/articles/journal_contribution/Reconstructing_glacial_outburst_floods_j_kulhlaups_from_geomorphology_challenges_solutions_and_an_enhanced_interpretive_framework/16996936 |
long_lat |
ENVELOPE(-129.463,-129.463,58.259,58.259) |
geographic |
Arctic Glacial Lake |
geographic_facet |
Arctic Glacial Lake |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
2134/16996936.v1 https://figshare.com/articles/journal_contribution/Reconstructing_glacial_outburst_floods_j_kulhlaups_from_geomorphology_challenges_solutions_and_an_enhanced_interpretive_framework/16996936 |
op_rights |
CC BY-NC-ND 4.0 |
op_rightsnorm |
CC-BY-NC-ND |
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1766339885412646912 |