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Your search keyword '"Garvin, James B."' showing total 18 results
Start Over Author "Garvin, James B." Publisher wiley-blackwell
18 results on '"Garvin, James B."'

1. The Mars Science Laboratory (MSL) Mast cameras and Descent imager: Investigation and instrument descriptions.

Author

Malin, Michal C., Ravine, Michael A., Caplinger, Michael A., Tony Ghaemi, F., Schaffner, Jacob A., Maki, Justin N., Bell, James F., Cameron, James F., Dietrich, William E., Edgett, Kenneth S., Edwards, Laurence J., Garvin, James B., Hallet, Bernard, Herkenhoff, Kenneth E., Heydari, Ezat, Kah, Linda C., Lemmon, Mark T., Minitti, Michelle E., Olson, Timothy S., and Parker, Timothy J.

Published
2017
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5. Estimation of erosion, deposition, and net volumetric change caused by the 1996 Skeiðarársandur jökulhlaup, Iceland, from Synthetic Aperture Radar Interferometry.

Author

Smith, Laurence C., Alsdorf, Douglas E., Magilligan, Francis J., Gomez, Basil, Mertes, Leal A. K., Smith, Norman D., and Garvin, James B.

Abstract

Using repeat-pass satellite synthetic aperture radar interferometry, we develop a methodology to measure flood-induced erosion and deposition and apply it to a record 1996 glacier outburst flood (jökulhlaup) on Skeiðarársandur, Iceland. The procedures include (1) coregistration of backscatter intensity images to observe morphological differences; (2) mapping of interferometric phase correlation to identify preserved and modified surfaces; and (3) construction, correction, and differencing of pre-jökulhlaup and post-jökulhlaup topography. Procedures 1 and 2 are robust and should be widely applicable to other fluvial environments, while procedure 3 is complicated by uncertainties in phase measurement, baseline estimate, and atmospheric effects. After a correction procedure involving interpolation of digital elevation model elevation differences across low-correlation areas, we find ∼4 m of elevation change are required to calculate volumes of erosion or deposition. This condition was satisfied for the 40 km2 proglacial zone of Skeiðarársandur, where we estimate +38×106 m3 of net sediment deposition along the ice margin, −2 ×106 m3 of net erosion in channels downstream, and a total net balance of +13 × 106. These estimates are supported by field observations and survey data collected in 1997. [ABSTRACT FROM AUTHOR]

Published
2000
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