Theoretical Studies of the Interaction of Solar Radiation with Sea Ice Cover

太阳辐射与海冰覆盖相互作用的理论研究

• 批准号: 9504311
• 负责人: Donald Perovich
• 金额: $ 5.6万
• 依托单位: Department of Army Cold Regions Research & Engineering Lab
• 依托单位国家: 美国
• 项目类别: Interagency Agreement
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-06-15 至 1997-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9504311&HistoricalAwards=false
• 关键词: Theoretical; Studies; Interaction; Solar; Radiation

Research supported by this grant is under the auspices of the Arctic Systems Science (ARCSS) Global Change Research Program and is jointly sponsored by the Division of Ocean Sciences and the Office of Polar Programs. Work to be performed represents preliminary steps towards a major 5-year research project named SHEBA, which is envisioned to study the heat budget of the Arctic Ocean and its impact on global change. The primary goals of SHEBA are: (1) to develop, test and implement models of arctic ocean-atmosphere-ice processes that demonstrably improve simulations of the present day arctic climate, including its variability, using General Circulation Models (GCMs), and (2) to improve the interpretation of satellite remote sensing data in the Arctic for analysis of the arctic climate system and provide reliable data for model input, model validation and climate monitoring. The investigator will use a model to simulate the effects of open leads in the pack ice and melt ponds on top of the ice to examine the factors that have the greatest effect on the heat transfer from the warm ocean to the cold atmosphere. This heat transfer from ocean to atmosphere is an important aspect of the overall Arctic heat budget and must be determined so that the response of sea ice to global climate change may be examined. Some global climate models predict an elimination of the arctic pack ice if global warming occurs and improvement of the proposed model simulations is necessary to increase the predictability of such an occurrence.

这笔赠款支持的研究由北极系统科学(ARCS)全球变化研究计划赞助，并由海洋科学部和极地方案办公室联合赞助。将开展的工作是迈向一个名为SHEBA的五年重大研究项目的初步步骤，该项目旨在研究北冰洋的热量收支及其对全球变化的影响。SHEBA的主要目标是：(1)开发、测试和实施北极海洋-大气-冰过程模式，利用全球环流模式明显改进对当今北极气候包括其变异性的模拟，以及(2)改进对北极卫星遥感数据的解释，用于北极气候系统的分析，并为模型投入、模型验证和气候监测提供可靠的数据。研究人员将使用一个模型来模拟浮冰中的开放铅和冰面上融化的池塘的影响，以考察对从温暖的海洋到寒冷的大气的热量传递影响最大的因素。这种从海洋到大气的热量转移是北极总热量收支的一个重要方面，必须加以确定，以便研究海冰对全球气候变化的反应。一些全球气候模型预测，如果全球变暖发生，北极冰盖将消失，改进拟议的模型模拟是必要的，以增加这种情况的可预测性。