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Dataset associated with “Aufeis as a Major Forcing Mechanism for Channel Avulsion and Implications of Warming Climate”

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dc.contributor.authorWohl, Ellen
dc.contributor.authorScamardo, Julianne
dc.coverage.spatialArctic coastal plain in Alaska: 68.54, -149.29en_US
dc.coverage.temporal2016-2022en_US
dc.date.accessioned2022-06-30T19:49:18Z
dc.date.available2022-06-30T19:49:18Z
dc.date.issued2022
dc.descriptionThe dataset is a comma separated values (CSV) file that contains the basic data used in analyses (river name, reach number, latitude and longitude of each measurement site, drainage area in km2 at each measurement site, and indication of presence/absence of persistent aufeis accumulation).en_US
dc.descriptionDepartment of Geosciences
dc.description.abstractPrompted by field observation of an aufeis-induced channel avulsion along the Hula Hula River in June 2021, we use measurements of channel migration zone width along 15 rivers flowing north across the Arctic coastal plain in Alaska, USA. We differentiated sites with aufeis that covered > 1 km2 in early summer during the period 2017-2021 from sites without such aufeis formation. All but 4 of the 28 sites with aufeis have widths greater than the 95% confidence interval and 20 sites fall outside of the 95% prediction interval for channel width based on drainage area. Pairwise comparison indicates that the population of aufeis sites have significantly wider channel migration zones (p < 0.0001) than non-aufeis sites after accounting for drainage area. Seasonal aufeis facilitates lateral channel migration and associated heterogeneity. Loss of aufeis under warming climate may reduce habitat diversity in these river corridors.en_US
dc.format.mediumCSV
dc.format.mediumPDF
dc.identifier.urihttps://hdl.handle.net/10217/235396
dc.identifier.urihttp://dx.doi.org/10.25675/10217/235396
dc.languageEnglishen_US
dc.language.isoengen_US
dc.publisherColorado State University. Librariesen_US
dc.relation.ispartofResearch Data
dc.relation.isreferencedbyWohl, E., & Scamardo, J. E. (2022). Aufeis as a major forcing mechanism for channel avulsion and implications of warming climate. Geophysical Research Letters, 49, e2022GL100246. https://doi.org/10.1029/2022GL100246
dc.rights.licenseThis material is open access and distributed under the terms and conditions of the Creative Commons CC BY-SA: Attribution-ShareAlike 4.0 International license (https://creativecommons.org/licenses/by-sa/4.0/).
dc.rights.urihttps://creativecommons.org/licenses/by-sa/4.0/
dc.subjectfloodplainen_US
dc.subjectAlaskaen_US
dc.subjectArctic coastal plainen_US
dc.titleDataset associated with “Aufeis as a Major Forcing Mechanism for Channel Avulsion and Implications of Warming Climate”en_US
dc.typeDataseten_US

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