Measuring, Parameterizing, and Modeling Atmospheric Surface Fluxes During SHEBA

SHEBA 期间大气表面通量的测量、参数化和建模

• 批准号: 9701766
• 负责人: C. Fairall
• 金额: $ 23.82万
• 依托单位: NOAA Environmental Technology Laboratory
• 依托单位国家: 美国
• 项目类别: Interagency Agreement
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-05-15 至 2000-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9701766&HistoricalAwards=false
• 关键词: Measuring; Parameterizing; Modeling; Atmospheric; Surface

ABSTRACT OPP-9701766 FAIRALL, CHRISTOPHER NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION This research project is a key component of a large, coordinated, multi-investigator program, Surface Heat Budget of the Arctic (SHEBA) Ocean. The research program will be conducted for 14 months from a ship frozen into the ice pack. These investigators will measure atmospheric conditions near the surface of the permanent ice cap of the Arctic Ocean to determine the flux of heat radiating onto and off of the ice floe. They will determine how atmospheric heating is coupled to adsorption of heat by the ice. These measurements are critical to understanding how heat is reflected or absorbed by the ice as it melts in the summer and thickens in the winter in response to seasonal variations in climate. The heat flux measurement program makes an essential contribution to the SHEBA team of researchers who will measure atmospheric variables with a large array of instruments on the ice floe and aircraft flying above as well as ice and ocean property measurements made on and below the ice floe. The combined set of measurements in SHEBA will allow refinement of climate models for the Arctic region. Those improved models will lead to better predictions of the climate and the permanence of the Arctic ice cap under a proposed global warming that could occur if atmospheric carbon dioxide levels are increased above present levels.

克里斯托弗国家海洋和大气管理局OPP-9701766 Fairall这项研究项目是一个大型的、协调的、多人参与的计划--北冰洋地表热量收支计划的关键组成部分。这项研究计划将在一艘冻结在冰层中的船只上进行14个月。这些研究人员将测量北冰洋永久冰盖表面附近的大气条件，以确定辐射到浮冰上和浮冰外的热通量。他们将确定大气加热如何与冰对热量的吸收相耦合。这些测量对于理解冰是如何反射或吸收热量至关重要的，因为冰在夏天融化，在冬天变厚，以应对气候的季节性变化。热通量测量计划对Sheba研究团队做出了重要贡献，他们将使用浮冰和上方飞行的飞机上的大量仪器以及浮冰上下的冰和海洋属性测量大气变量。在舍巴的一套综合测量将允许改进北极地区的气候模型。这些改进的模型将导致更好地预测气候和北极冰盖在拟议的全球变暖下的持久性。如果大气中的二氧化碳水平增加到目前的水平，就可能发生全球变暖。