Development of a numerical ice-shelf model for study on dynamics over boundaries between ice-sheet and ice shelf

开发用于研究冰盖和冰架之间边界动力学的数值冰架模型

• 批准号: 21740349
• 负责人: SAITO Fuyuki
• 金额: $ 2.83万
• 依托单位: Japan Agency for Marine-Earth Science and Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21740349/
• 关键词: 氷床; 棚氷; 数値モデル

A numerical ice shelf model is developed in order to understand/simulate response of ice-sheets on climate variation. An ice-sheet model is used to evaluate the potential contribution of ice-shelf grounding to the ice-sheet volume and it is found to be an essential to understand the variation of ice-shelf to understand the whole Antarctic ice-sheet. After discussing influence of errors due to finite-precision numerics on ice-sheet evolution, the ice-shelf model is designed to reduce such numerical errors, and tested under various configuration.

为了了解和模拟冰盖对气候变化的响应，建立了一个数值冰架模型。利用冰盖模型对冰架接地对冰盖体积的潜在贡献进行了评估，发现了解冰架的变化是了解整个南极冰盖的必要条件。在讨论了有限精度数值误差对冰盖演变的影响后，设计了冰架模型以减小数值误差，并在各种配置下进行了测试。