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Alaska Bathymetry: Central Gulf of Alaska Seafloor Changes(pg 1, 2, 3, 4, 5, 6, 7, 8, 9, 10)

Seafloor Changes of Central Gulf of Alaska

Taylor Bay Shoreline

There was approximately 4500 m horizontal change in the location of the shoreline of Taylor Bay between the 1901 survey of H02558 (green) and the 1992 survey of H10425 (red) due to isostatic uplift of about 20mm/year (Freymueller et al. 2008) and significant possible sedimentation (Jeff Freymueller, Professor of Geophysics, Geophysical Institute and Dept. of Geology and Geophysics, Univ. of Alaska Fairbanks, personal communication 2014). This figure was created by plotting the partially transparent smooth sheet of the older survey on top of the smooth sheet of the newer survey, resulting in some imagery faintness. The shallowest modern soundings occur on top of 26 fathom soundings from the old survey.

taylor bay

References
Freymueller, J.T., H. Woodard, S.C. Cohen, R. Cross, J. Elliot, C.F. Larsen, S. Hreinsdottir, and C. Zweck. 2008. Active Deformation Processes in Alaska, based on 15 years of GPS measurements. Active Tectonics and Seismic Potential of Alaska, Geophysical Monograph Series 179. American Geophysical Union.

 

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