点击次数：

论文类型：期刊论文

发表时间：2011-12-01

发表刊物：COMPUTERS & MATHEMATICS WITH APPLICATIONS

收录刊物：Scopus、SCIE、EI

卷号：62

期号：11

页面范围：4015-4020

ISSN号：0898-1221

关键字：Parameter identification; Movable inner boundary; Distributed parameter coupled system; Non-overlapping domain decomposition; Arctic sea ice

摘要：In this paper, we establish a distributed parameter coupled system concerning Arctic sea ice temperature field, in which the ice thickness is regarded as a movable inner boundary of the space domain. The existence and continuity of the weak solution to the coupled system are proved. According to the measured data, we establish a parameter identification model with the ice thickness as control variable and the coupled system as constraints. Finally, an optimization algorithm is constructed on the basis of non-overlapping domain decomposition method and semi-implicit difference scheme. Through numerical calculation, we obtain the characteristics of the ice thicknesses and the ice temperatures. (C) 2011 Elsevier Ltd. All rights reserved.