On Least Cost Paths Using Informational Properties of SAR Imagery of Sea Ice
Previously reported results for the statistical mechanics description of sea ice imagery are applied to the calculation of paths of least cost from an origin to a destination. Key steps in the process are the identification of ice type in terms of the correlation of textural and structural information, the use of local networks to obtain consensus as to a local ice type, and the use of the length of these networks to estimate ice thickness. An Operations Research approach is employed to develop an energy-based cost function for a ship to move in the ice field between a specified origin and destination.
KeywordsGibbs Measure Cost Path Operation Research Model Statistical Mechanic Description Connected Length
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- Cole, D.M., 1986. Effect of grain size on the internal fracturing of polycrystalline ice, CRREL Report No. 86–5.Google Scholar
- Duxbury, P.M. and Y. Li, 1990: Scaling theory of the strength of percolation networks. Disorder and Fracture (ed. J.C. Charmet, S. Roux, E. Guyon), NATO ASI Series, v235, Plenum.Google Scholar
- Kerman, B.R., 1998a: A damage mechanics model for sea ice imagery. Gobal. Atmos. Ocean Sys., 6, 1–34.Google Scholar
- Kerman, B.R., 1998b: Segmentation of sea ice imagery based on a scaling, Gibbs probability measure of similitude. Presented at Fractal 98, Valletta, Malta, Oct 25–28, In Fractals and Beyond: Complexities in the Sciences (ed. M.N. Novak), World Scientific, Singapore.Google Scholar
- Kerman, B.R., 1998c: On the relationship of pack ice thickness to the length of connectivity trees in SAR imagery. Proc. 14th Int. Sympos. on Ice, Ice in Surface Waters, vol 2, (H.T. Shen, ed.), 811–819, Clarkson Univ., Potsdam, N.Y.Google Scholar
- Kerman, B.R. and K. Johnson, 1998: Properties of a probability measure for sea ice imagery. Global Atmos. Ocean Sys., 6, 35–92.Google Scholar
- Ritch, A., St John, J.W. and Browne, R., 1997. Ice load impact measurements on the CCGS Lous S. St-Laurant during the 1994 Arctic Ocean crossing: Analysis and conclusions, Transport Canada Report T8080–4-6051.Google Scholar
- Sanderson, T.J.O., 1988: Ice Mechanics: Risks to Offshore Structures. Graham and Trotman. LondonGoogle Scholar