Interactions of the Cloudy Arctic Boundary Layer with Variable Surface Conditions and Large-Scale Circulations

多云的北极边界层与变化的地表条件和大规模环流的相互作用

• 批准号: 9504246
• 负责人: David Randall
• 金额: $ 15万
• 依托单位: Colorado State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-05-01 至 1998-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9504246&HistoricalAwards=false
• 关键词: Interactions; Cloudy; Arctic; Boundary; Layer

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 interpre- tation 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. Researchers at Colorado State University will improve computer simulations of the effect of Stratus clouds on the surface heat budget of the Arctic. The fraction of open water, ice thickness, and snow cover/thickness, and melt pond cover/thickness will be used to look at the effect of these parameters on cloud formation. The improvement of the cloud component simulations in Arctic climate models is essential to improving the accuracy of global climate models used to examine possible greenhouse effects on global climates. ??

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，以明显改进对当今北极气候包括其变异性的模拟，并利用全球环流模式(GCMS)；(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，并为模型输入、模型验证和气候监测提供可靠数据。科罗拉多州立大学的研究人员将改进层状云对北极地表热量收支影响的计算机模拟。我们将使用开阔水域的比例、冰层厚度、积雪覆盖/厚度以及融化池塘覆盖/厚度来考察这些参数对云形成的影响。改进北极气候模式中的云分量模拟对于提高全球气候模式的精确度至关重要，该模式用于研究全球气候可能产生的温室效应。?？