Three-dimensional Stokes grounding line dynamics with the open community JPL/UCI Ice Sheet System Model (ISSM).

使用开放社区 JPL/UCI 冰盖系统模型 (ISSM) 的三维斯托克斯接地线动力学。

• 批准号: 1155885
• 负责人: Eric Rignot
• 金额: $ 27.47万
• 依托单位: University of California-Irvine
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-09-01 至 2014-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1155885&HistoricalAwards=false
• 关键词: Three; dimensional; Stokes; grounding; line

EAGER funding is to be used to open, to the wider academic community in the US and abroad, the source code for a maturing numerical ice-sheet modeling tool. The JPL Ice Sheet System Model (ISSM) is intended as a numerical modeling tool for the representation of the earth's ice sheets, and to be capable of large-scale satellite and other data assimilation. ISSM has high spatial resolution capable of resolving both continent wide (Antarctica) and local (down to ~100's meters) ice flow dynamical features, along with full resolution of Stokes equation ice flow projections. Opening up the source code of the model is a logical step towards its coupling with other earth systems modeling efforts, such as global circulation atmospheric and ocean models intended to include a full range of cryosphere ocean and atmosphere processes. A specific focus goal of the EAGER proposal, is the development and testing of a new solver to study the three-dimensional simulation of the evolution of the Pine Island Glacier grounding lines. Housing of this effort at UC Irvine will involve UCI undergraduate and graduate student training and use, along with participation of scientists and students from other academic institutions taking part in planned ISSM workshops.As recognized in the most recent reports from Intergovernmental Panel on Climate Change (IPCC AR-4), current scientific uncertainty as to the future mass changes in the Antarctic and Greenland ice sheets, and possible accelerations in ice sheet flow into a warming ocean remains a major source in uncertainty in projections for global and local sea-level rise over the coming century. Uncertainty of sea-level rise, on a notably rapid time scale of decades to centuries, is a matter of some societal and economic relevance.

迫不及待的资金将用于向美国和海外更广泛的学术界开放一个成熟的数值冰盖建模工具的源代码。喷气推进实验室冰盖系统模式(ISSM)是一种描述地球冰盖的数值模拟工具，能够进行大规模卫星和其他数据同化。该模型具有较高的空间分辨率，能够同时分辨整个大陆(南极)和局地(低至100‘S米)的冰流动力学特征，并具有斯托克斯方程冰流投影的全分辨率。公开该模型的源代码是其与其他地球系统模拟工作相结合的合乎逻辑的一步，例如旨在包括冰冻圈海洋和大气全系列过程的全球环流大气和海洋模型。热切提议的一个具体重点目标是开发和测试一种新的求解器，以研究松岛冰川接地线演变的三维模拟。加州大学欧文分校的这项工作将涉及UCI本科生和研究生的培训和使用，以及来自其他学术机构的科学家和学生参与计划中的ISSM工作坊。正如政府间气候变化专门委员会(IPCC AR-4)最近的报告所承认的那样，目前关于南极和格陵兰冰盖未来大规模变化的科学不确定性，以及冰盖流入变暖海洋的可能加速，仍然是下个世纪全球和当地海平面上升预测的主要不确定性来源。海平面上升的不确定性在几十年到几个世纪的时间尺度上非常迅速，这是一个具有一定社会和经济意义的问题。