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Title: A sea ice terrain model and its application to surface vehicle trafficability
Authors: United States. Advanced Research Projects Agency.
Hibler, William D.
Ackley, Stephen F.
Keywords: Laser profilometry
Monte Carlo calculations
Pack ice
Sea ice
Air cushion vehicles
Pressure ridges
Shear zone
Surface effect vehicles
Terrain models
Trafficability model
Publisher: Cold Regions Research and Engineering Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: Research report (Cold Regions Research and Engineering Laboratory (U.S.)) ; 314.
Description: Research Report
Abstract: A sea ice terrain model, based upon previously tested height and spacing distributions for sea ice pressure ridging, is developed. Using this model, and additional information on pressure ridge extents, a trafficability model for vehicles traversing the pack ice is developed. Both analytic and Monte Carlo calculations of vehicle trafficability, measured in terms of the average ratio of the total distance traveled over a straight-line distance, are performed. The calculations include cul-de-sacs due to ridge intersections. The trafficability ratio is given as a function of ridge-height-clearance ability of the vehicle and of ridging parameters which may be obtained from laser profiles of the arctic pack ice. Results are in good agreement with simulated routes through sea ice terrain taken from aerial photo mosaics. Contour plots of ridging parameters taken from laser profilometry are also supplied. These plots, together with the trafficability model, supply mobility information for the whole of the western portion of the Arctic Basin.
Rights: Approved for public release; distribution is unlimited.
Appears in Collections:Research Report

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