Climate and Glacier Variations in Scandinavia

斯堪的纳维亚半岛的气候和冰川变化

• 批准号: 0240861
• 负责人: Howard Conway
• 金额: --
• 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: 2003
• 资助国家: 美国
• 起止时间: 2003-03-15 至 2008-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0240861&HistoricalAwards=false
• 关键词: Climate; Glacier; Variations; Scandinavia

ABSTRACTOPP-0240861ConwayThis is a collaborative proposal by Principal Investigators at the Universities of Washington and Stockholm. The Principal Investigators will investigate relationships between variations of climate patterns in the North Atlantic and glaciers in Norway and Sweden. They will focus on the west coast of Scandinavia for three reasons. First, the future of the glaciers in relation to climate change has important consequences for regional hydrology and global sea level. Second, historically, pronounced glacial fluctuations suggest that the region is highly sensitive to climate anomalies. Winter climate in the is dominated by a large-scale climate pattern known as the Northern Hemisphere annular mode (NAM) that depends on the strength of the polar night jet stream. Variations in the NAM have a particularly strong effect along coastal Scandinavia; analysis of the glacial record has potential to greatly improve understanding of present and past behavior of the NAM. Third, an improved understanding of the climate of the region may also be key for helping to resolve outstanding issues concerning the role of the thermohaline circulation in natural climate variability. Their approach is to make use of the existing suite of high-resolution measurements that have been made on the glaciers of Scandinavia, and gridded atmospheric National Center for Environmental Prediction/National Centers for Atmospheric Research (NCEP/NCAR) reanalysis) data that are available for the last 50 years. Specifically, they will 1) establish modern (past 50 years) relationships between climate and glaciers by applying their well-proven models and the NCEP/NCAR Reanalysis data; 2) use the statistics of climate-glacier response to derive possible climate conditions that would produce glaciers of the extent known to exist in Scandinavia during the Little Ice Age; and 3) use the statistics to investigate potential glacier changes under future possible climate scenarios. Quantitative understanding of interactions between climate and glaciers is important for two reasons. First, the record of past glacier fluctuations can be used to help reconstruct past patterns of climate. Second, the future of glaciers in the face of climate change has important and global consequences for sea level and hydrology. This research involves collaboration with Principal Investigators at the Universities of Washington and Stockholm, so it will foster international co-operation. The research will also provide core education for a graduate student in Earth and Space Sciences with an emphasis in climate and glaciology and the student will benefit from exposure to the international community.

这是华盛顿大学和斯德哥尔摩大学的主要研究人员的一项合作建议。主要研究人员将调查北大西洋气候模式变化与挪威和瑞典冰川之间的关系。他们将重点放在斯堪的纳维亚半岛的西海岸，原因有三。首先，冰川的未来与气候变化的关系对区域水文和全球海平面有重要影响。 其次，从历史上看，明显的冰川波动表明该地区对气候异常高度敏感。 冬季气候主要由一种称为北方半球环形模式（NAM）的大尺度气候模式控制，这种模式取决于极地夜间急流的强度。NAM的变化对沿着斯堪的纳维亚海岸有着特别强烈的影响;对冰川记录的分析有可能极大地提高对NAM现在和过去行为的理解。 第三，更好地了解该区域的气候也可能是帮助解决有关温盐环流在自然气候变异中的作用的未决问题的关键。 他们的方法是利用斯堪的纳维亚半岛冰川上现有的一套高分辨率测量数据，以及过去50年可用的网格大气国家环境预测中心/国家大气研究中心（NCEP/NCAR）再分析数据。具体而言，他们将1）建立现代（2）利用气候-冰川响应的统计数据，推导出在小冰期斯堪的纳维亚半岛可能产生冰川的气候条件;（3）利用这些数据研究在未来可能的气候情景下冰川的潜在变化。对气候和冰川之间相互作用的定量理解很重要，原因有二。 首先，过去冰川波动的记录可以用来帮助重建过去的气候模式。 第二，面对气候变化，冰川的未来对海平面和水文具有重要的全球性影响。 这项研究涉及与华盛顿大学和斯德哥尔摩大学的主要研究人员的合作，因此它将促进国际合作。这项研究还将为地球和空间科学的研究生提供核心教育，重点是气候和冰川学，学生将从接触国际社会中受益。

项目成果

Influence of upper air conditions on the Patagonia icefields

• DOI: 10.1016/j.gloplacha.2006.11.025
• 发表时间: 2007-10-01
• 期刊: GLOBAL AND PLANETARY CHANGE
• 影响因子: 3.9
• 作者: Rasmussen, L. A.;Conway, H.;Raymond, C. F.
• 通讯作者: Raymond, C. F.

Reconstruction of mass balance of glaciers in southern Norway back to 1948

• DOI: 10.3189/172756407782871242
• 发表时间: 2007-10
• 期刊: Annals of Glaciology
• 影响因子: 2.9
• 作者: L. A. Rasmussen;L. Andreassen;H. Conway