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Title: Aerial photointerpretation of a small ice jam
Authors: DenHartog, Stephen L.
Keywords: Aerial photointerpretation
Ice jam
Plymouth, New Hampshire
Aerial photography
Photographic interpretation
River ice
Pemigewasset River, New Hampshire
Publisher: Cold Regions Research and Engineering Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: Special report (Cold Regions Research and Engineering Laboratory (U.S.)) ; 77-32.
Description: Special Report
Abstract: Aerial photos of a small ice jam on the Pemigewasett River near Plymouth, New Hampshire, were taken three days after the jam and compared with photos taken after the ice went out. The winter photos show a marked and sudden decrease in floe size apparently indicative of faster and longer movement of the ice. The spring photos show a number of shallows and obstructions that apparently had no effect on the ice movement. It is concluded that this jam was caused by a change in slope and subsequent reduction in velocity. NOTE: This file is large. Allow your browser several minutes to download the file.
Rights: Approved for public release; distribution is unlimited.
Appears in Collections:Special Report

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