Accession Number : ADA637421
Title : On Wave-Ice Interaction in the Arctic Marginal Ice Zone: Dispersion, Attenuation, and Ice Response
Descriptive Note : Memorandum rept.
Corporate Author : NAVAL RESEARCH LAB STENNIS DETACHMENT STENNIS SPACE CENTER MS OCEAN DYNAMICS AND PREDICTION BRANCH
Personal Author(s) : Collins, III, Clarence O ; Rogers, W E ; Marchenko, Aleksey
Report Date : 01 Jun 2016
Pagination or Media Count : 64
Abstract : Ice is extremely variable, and because waves and ice may interact in a number of ways depending on the ice and wave characteristics, wave prediction in ice-covered waters is a difficult, and in some ways intractable, problem. A review of wave ice interaction is made, and special attention is given to formulations of the dispersion relation. The dispersion relation determines the wave attenuation for non-conservative dissipation schemes and contributes to a change of wave height (and direction) analogous to shoaling and refraction. A method for jointly measuring dispersion and attenuation in ice is proposed and it is hoped that two ongoing Office of Naval Research (ONR) Departmental Research Initiatives will provide an opportunity to test and evaluate models of dispersion in ice. In terms of wave effects on ice, a number of new primitive ice models have been recently developed; these are summarized, but much research is needed towards understanding the mechanical properties of ice. Also, additional analysis of wave attenuation during a high wave/ice breakup is presented as a companion for Collins et al. .
Descriptors : *INTERACTIONS , *OCEAN WAVES , *SEA ICE , ARCTIC OCEAN , ATTENUATION , DISPERSIONS , MECHANICAL PROPERTIES , OCEAN SURFACE
Subject Categories : Physical and Dynamic Oceanography
Snow, Ice and Permafrost
Distribution Statement : APPROVED FOR PUBLIC RELEASE