Release Time:2019-03-09  Hits:

Indexed by: Journal Article

Date of Publication: 2011-12-01

Journal: COMPUTERS & MATHEMATICS WITH APPLICATIONS

Included Journals: EI、SCIE、Scopus

Volume: 62

Issue: 11

Page Number: 4015-4020

ISSN: 0898-1221

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

Abstract: 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.