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HuhKyungIn2007 ljc.pdf (5.02 MB)

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Reconstructing Holocene Glacier changes in West Greenland from multispectral imagery

Huh, Kyung In
http://rave.ohiolink.edu/etdc/view?acc_num=osu1407141572

Abstract Details

2007, Master of Science, Ohio State University, Environmental Science.
The Greenland Ice Sheet (GIS), the second largest ice mass on Earth, is generally believed to be vulnerable to changes in climate due to its location at more temperate latitudes. Its mass balance and equilibrium state are complex functions of external climate forcing and internal dynamical processes. To understand the mass balance of the Greenland Ice Sheet it is crucial to construct longer temporal records, reaching back to the Little Ice Age (LIA) or beyond. Jakobshavn Isbræ in central west Greenland is one of the most dynamically thinning outlet glaciers draining the interior of the Greenland Ice Sheet, contributing 0.06 mm/yr to global sea level rise (Joughin and others, 2004). In this study, multispectral ASTER (Advanced Spaceborne Thermal Emission and Reflection Radiometer) imagery was used to develop procedures for mapping glacial trimlines and terminal moraines around Jakobshavn Isbræ. The motivation for using satellite imagery for mapping glacial-geological features is the greater spatial coverage that can be achieved, as opposed to the traditional method of field mapping in restricted areas. ASTER imagery provides spectral bands spanning from the visible to the thermal infrared bands, including two stereo bands, enabling us to map the spectral properties of the Earth’s surface as well as to obtain surface topography. With these great opportunities from ASTER, glacial trimlines and major moraine systems around the study area were efficiently mapped and results were verified by other data such as stereo pairs of aerial photographs and GPS data. Extracted trimzone from ASTER classification image and ASTER DEM were applied to calculate ice volume shrinkage since LIA and this is related to Greenland Ice Sheet volume changes and the potential for future changes.
Terry Wilson (Advisor)
Bea Csatho (Committee Member)
Kees van der Veen (Committee Member)
145 p.
Environmental Science; Environmental Studies

Recommended Citations

Citations

  • Huh, K. I. (2007). Reconstructing Holocene Glacier changes in West Greenland from multispectral imagery [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1407141572

    APA Style (7th edition)

  • Huh, Kyung. Reconstructing Holocene Glacier changes in West Greenland from multispectral imagery. 2007. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1407141572.

    MLA Style (8th edition)

  • Huh, Kyung. "Reconstructing Holocene Glacier changes in West Greenland from multispectral imagery." Master's thesis, Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=osu1407141572

    Chicago Manual of Style (17th edition)

osu1407141572
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© 2007, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.