Coupling Planet Simulator Mars, a general circulation model of the Martian atmosphere, to the ice sheet model SICOPOLIS

被引：9
|
作者：
Stenzel, O. J. [1 ]
Grieger, B. [1 ]
Keller, H. U. [1 ]
Greve, R. [2 ]
Fraedrich, K. [3 ]
Kirk, E. [3 ]
Lunkeit, F. [3 ]
机构：
[1] Max Planck Inst Solar Syst Res, D-37191 Katlenburg Duhm, Germany
[2] Hokkaido Univ, Inst Low Temp Sci, Kita Ku, Sapporo, Hokkaido 0600819, Japan
[3] Univ Hamburg, Inst Meteorol, D-20146 Hamburg, Germany
来源：
PLANETARY AND SPACE SCIENCE | 2007年 / 55卷 / 14期
关键词：
Mars; planetary atmospheres; obliquity; climate simulation; Martian ice caps;
D O I：
10.1016/j.pss.2007.09.001
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
A general circulation model of the Martian Atmosphere is coupled with a 3-dimensional polythermal ice-sheet model of the polar ice caps. With this combination a series of experiments is carried out to investigate the impact of long-term obliquity change on the Martian north polar ice cap (NPC). The behaviour of the NPC is tested Under obliquities of theta = 15 degrees, 25 degrees and 35 degrees. With increasing obliquity the area covered by the NPC gets smaller but does not vanish. However, when started from an ice-free condition the models develop an ice cap only for low obliquities. The 'critical' obliquity at which a build-up of a new polar cap is possible is theta = 22 degrees. (c) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2087 / 2096
页数：10
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