Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Glacier Changes in the Susitna Basin, Alaska, USA, (1951-2015) using GIS and Remote Sensing Methods
Friedrich Alexander Univ Erlangen Nurnberg, Inst Geog, D-91058 Erlangen, Germany..
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, LUVAL. Univ Alaska Fairbanks, Geophys Inst, Fairbanks, AK 99775 USA..
Univ Alaska Fairbanks, Geophys Inst, Fairbanks, AK 99775 USA..
Friedrich Alexander Univ Erlangen Nurnberg, Inst Geog, D-91058 Erlangen, Germany..
2017 (English)In: Remote Sensing, ISSN 2072-4292, E-ISSN 2072-4292, Vol. 9, no 5, 478Article in journal (Refereed) Published
Abstract [en]

The Susitna River draining from the highly glacierized Central Alaska Range has repeatedly been considered a potential hydro-power source in recent decades, raising questions about the effect of glacier changes on the basin's river runoff. We determine changes in the glacier area (1951-2010), elevation (1951-2010, 1951-2005 and 2005-2010), equilibrium line altitude (ELA, 1999-2015), and accumulation area ratio (AAR, 1999-2015) of the basin's five largest glaciers covering 587 km(2) (2010). We use the Landsat time series, as well as digital elevation models (DEMs) from 1951 (United States Geological Survey (USGS) aerial imagery), 2005 (Advanced Spaceborne Thermal Emission and Reflection Radiometer, ASTER), and 2010 (airborne interferometric synthetic aperture radar, IfSAR). The glaciers lost an area of 128 +/- 15 km(2) (16%) between 1951 and 2010. The mean ELA was located at 1745 +/- 88 m a.s.l. during 1999-2015. The glacier's annual ELAs do not show any significant trends. We found a glacier-wide elevation change of 0.41 +/- 0.07 m yr(-1) for the period 1951-2005 and -1.20 +/- 0.25 m yr(-1) for 2005-2010. The results indicate that the glaciers are in a state of retreat and thinning, and have been losing mass at an accelerated rate in recent years. The interpretation of the thickness changes is complicated by the glaciers' surge cycles.

Place, publisher, year, edition, pages
MDPI AG , 2017. Vol. 9, no 5, 478
Keyword [en]
glacier, geodetic mass balance, glacier elevation change, digital elevation model, equilibrium line altitude, accumulation area ratio, glacier surge, Susitna basin
National Category
Remote Sensing
Identifiers
URN: urn:nbn:se:uu:diva-327057DOI: 10.3390/rs9050478ISI: 000402573700081OAI: oai:DiVA.org:uu-327057DiVA: diva2:1129384
Available from: 2017-08-02 Created: 2017-08-02 Last updated: 2017-11-29Bibliographically approved

Open Access in DiVA

fulltext(7119 kB)30 downloads
File information
File name FULLTEXT01.pdfFile size 7119 kBChecksum SHA-512
b1b391960b1ff99eb1c82b620bad4e6dac9eb0d051d0c10349b94ad555b1a3df8b629b926d64cea46ae030aad80ff01335b7e88ef324d65822aa6d732b320e36
Type fulltextMimetype application/pdf

Other links

Publisher's full text

Search in DiVA

By author/editor
Hock, Regine
By organisation
LUVAL
In the same journal
Remote Sensing
Remote Sensing

Search outside of DiVA

GoogleGoogle Scholar
Total: 30 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 219 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf