How a region of cracked sea ice affects ice-coupled wave propagation

摘要: By deriving the appropriate Green’s function, a model is developed that allows interaction of normally-incident, ice-coupled waves with any number cracks to be studied analytically. For single crack simple formula for reflection and transmission coefficients, R T, emerges yields identical results computationally intensive work Barrett Squire (1996) but much easier apply. A found behave as steep low-pass filter, allowing long through while inhibiting shorter waves, although there also some fine structure response curve. The introduction more straightforward. While in case T possible principle, it express result solution matrix equation order 2N, where N cracks. It perfect (|R| = 0) occurs at set discrete periods, hereinafter called comb, > 1 comb becomes finer period decreases. both periodically distributed ones are randomly spaced, gross shape curve remains similar. suggest improbable travelling Arctic basin can used remote-sensing agent determine mean ice thickness. function technique employed this paper furnishes solutions other problems interest.