Collaborative Research: A New Look at the Northern Hemisphere Sea Ice Concentration

合作研究：北半球海冰浓度的新视角

• 批准号: 0454912
• 负责人: Harry Stern
• 金额: $ 6.11万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-03-15 至 2007-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0454912&HistoricalAwards=false
• 关键词: Collaborative; Research; New; Look; Northern

Funds are provided to use a new data set of Northern Hemisphere sea iceconcentration, derived from weekly operational ice charts spanning more than three decades (1972-2004), to analyze: (1) long-term regional variability and trends in sea ice area and extent; (2) the changing mix of ice types in the Arctic Ocean, in order to understand the recent record low summer ice extent minima; (3) the duration of the ice season, as an indicator of climate change; and (4) the modes of variability of the ice edge, in order to develop a predictive capability for sea ice extent. The data set is largely independent of the popular passive microwave sea ice concentration products that are heavily used by the sea ice community.Sea ice extent is believed by many to be a bellwether of environmental response to climate change in the Arctic. This project will utilize a long historical data set in an efficient manner to document the variability of this parameter. The results are anticipated to be important for the verification and skill assessment of climate models.

提供资金用于使用一套新的北方海冰浓度数据，该数据来自30多年来的每周业务冰图（1972-2004年），分析：（1）海冰面积和范围的长期区域变化和趋势;（2）北冰洋冰型组合的变化，以了解最近记录的夏季最低冰范围;（3）冰季的持续时间，作为气候变化的指标;（4）冰缘的变化模式，以发展对海冰范围的预测能力。 该数据集在很大程度上独立于海冰社区大量使用的流行被动微波海冰浓度产品。许多人认为海冰范围是北极气候变化环境响应的风向标。 本项目将以有效的方式利用长期历史数据集来记录该参数的变异性。 预计这些结果对气候模式的验证和技能评估具有重要意义。