Collaborative Research: Synoptic and Mesoscale Storms in the Southern Ocean and their Impact on Cryosphere

合作研究：南大洋的天气和中尺度风暴及其对冰冻圈的影响

• 批准号: 1244924
• 负责人: Matthew Lazzara
• 金额: $ 15.44万
• 依托单位: University of Wisconsin-Madison
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-03-15 至 2018-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1244924&HistoricalAwards=false
• 关键词: Collaborative; Research; Synoptic; Mesoscale; Storms

Many aspects of atmospheric-ocean interactions at high southern latitudes are still poorly understood. For instance the interaction of large cyclonic and mesoscale storm systems with the atmospheric moisture balance in a changing climate and with a warming ocean are curiously different from the corresponding Arctic case.This project seeks to better quantify the contribution of water vapor transport, and especially the mesoscale drivers of synoptic variability, on the surface mass balance of the Antarctic ice sheets, and also to the annual progression of Southern Ocean sea-ice. To investigate the role of these mesoscale cyclonic storm systems, a variety of satellite data products, best available reanalysis products and the Weather Research and Forecasting (WRF) model predictions will be used to developed scenarios for changes in cyclone frequencies and strength in an intensifying hydrological cycle, and the impacts these may have on Antarctic sea-ice and continental surface mass balances.

对南半球高纬度地区大气-海洋相互作用的许多方面仍然知之甚少。例如，在气候变化和海洋变暖的情况下，大型气旋和中尺度风暴系统与大气水分平衡的相互作用与相应的北极情况有着奇怪的不同。该项目旨在更好地量化水汽输送的贡献，特别是天气变化的中尺度驱动因素，对南极冰盖的表面质量平衡的贡献，也与南大洋海冰的年变化有关。 为了调查这些中尺度气旋风暴系统的作用，将利用各种卫星数据产品、现有最佳再分析产品和天气研究和预报模型预测，制定关于气旋频率和强度在不断加剧的水文循环中的变化以及这些变化可能对南极海冰和大陆表面物质平衡产生的影响的设想。