Collaborative Research: First Scientific Priorities from the ARM West Antarctic Radiation Experiment

合作研究：ARM 西南极辐射实验的首要科学重点

• 批准号: 1443549
• 负责人: Dan Lubin
• 金额: $ 60.38万
• 依托单位: University of California-San Diego Scripps Inst of Oceanography
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-07-01 至 2019-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1443549&HistoricalAwards=false
• 关键词: Collaborative; Research; First; Scientific; Priorities

The West Antarctic Ice Sheet (WAIS) is a rapidly warming region of the Earth. Its stability under projected warming scenarios is inextricably linked with future global sea level rise. There have been only modest ground based atmospheric science or climatological field observations collected in West Antarctica since that undertaken during the era of the 1957 International Geophysical Year. Satellite imagery and meteorological reanalysis indicate that West Antarctica is highly susceptible to continental advection of warm and moist maritime air and cloud cover, depending on the location and strength of climatological low pressure cells in the Amundsen, Ross, and Bellingshausen Seas. There is a need to quantify the role of these changing air masses have on the surface energy balance, including radiation components and cloud radiative forcing terms, and to identify distant teleconnections with lower latitudes, such as the North Atlantic and the tropics. The research proposed herein, at McMurdo and at WAIS divide, is organized in two thrusts: (1) Empirical determination of the energy balance on the WAIS divide site throughout a 75-day (austral summer) observing period, accounting for meteorological factors governing the local energy balance, and including exploration of teleconnections with lower latitudes, and, (2) Determination of the major categories of meteorological conditions that give rise to recurring types of cloud cover, including mixed phase clouds, and aerosol abundance over Ross Island, over an annual cycle. These measurement campaigns will be organized around the detailed protocols and advanced observing facilities enabled by the DOE ARM mobile facility (Department of Energy ? Atmospheric Radiation Measurement program). These extensive and advanced ARM microphysical data will also be used to assess how well current polar-optimized regional climate models simulate observed high latitude cloud cover.The AWARE campaign also will provide a hands-on opportunity to help high school teachers adapt to the new Next Generation Science and Engineering Standards (NGSS). AWARE science team members will also participate in annual teacher training workshops at Scripps Institution of Oceanography, involving selected San Diego Unified School District (SDUSD) master teachers.

西南极冰盖(WAIS)是地球上一个快速变暖的地区。它在预计变暖情景下的稳定性与未来全球海平面上升密不可分。自1957年国际地球物理年以来，在南极洲西部只收集了少量的地面大气科学或气候实地观测。卫星图像和气象再分析表明，西南极非常容易受到大陆暖湿海洋空气和云层平流的影响，这取决于阿蒙森、罗斯和别林豪森海气候低压单体的位置和强度。需要量化这些变化的气团对地面能量平衡的作用，包括辐射成分和云辐射强迫项，并确定与北大西洋和热带等较低纬度的遥远遥相关。这里建议在McMurdo和WAIS Divide进行的研究分两个阶段进行：(1)对WAIS分水岭站点在75天(南半球夏季)观测期间的能量平衡进行经验测定，说明制约当地能量平衡的气象因素，包括探索与较低纬度的遥相关，以及(2)确定引起反复出现的云层类型的主要气象条件类别，包括混合相云和罗斯岛上空的气溶胶丰度。这些测量活动将围绕美国能源部ARM移动设施(能源部？大气辐射测量计划)。这些广泛和先进的ARM微物理数据还将用于评估当前极地优化的区域气候模式对观测到的高纬度云覆盖的模拟情况。Aware活动还将提供一个动手机会，帮助高中教师适应新的下一代科学与工程标准(NGSS)。Aware科学团队成员还将参加斯克里普斯海洋研究所的年度教师培训讲习班，参加培训的有选定的圣地亚哥联合学区(SDU.S.)的主要教师。

项目成果

Composition and Sources of Biogenic Secondary Organic Aerosols in the Southeastern U.S. and Antarctica

美国东南部和南极洲生物二次有机气溶胶的成分和来源

• 发表时间: 2018
• 期刊: UC San Diego Electronic Theses and Dissertations
• 作者: Liu, Jun