Applications of Small Research Aircraft to Understanding Horizontal Inhomogeneities in Surface Fluxes for SHEBA

BROOKS, STEVEN MASLANIK， JAMES NATIONAL OCEANIC AND UNIVERSITY OF COLORADO ATMOSPHERIC ADMINISTRATION这个研究项目是一个大型的、协调的、多研究者项目——北极海洋表面热收支（SHEBA）的关键组成部分。该研究项目将在一艘被冰封的船上进行14个月。这些研究人员将利用对北冰洋永久冰盖不同表面冰况的热通量的测量。他们的研究结果将有助于确定大气和海洋的加热是如何与冰对热量的吸附相结合的。这些测量对于了解海冰在夏季融化和冬季变厚时如何反射或吸收热量是至关重要的，这是对气候季节性变化的反应。对地表冰况的测量将被纳入到一个建模程序中，该程序对SHEBA研究小组的测量和建模做出了重要贡献。该项目将是整个SHEBA大气和海洋变量测量计划的组成部分，该计划使用在浮冰上的大量仪器和在浮冰上和浮冰下飞行的飞机进行测量。SHEBA的测量数据和海冰模型的组合将使北极地区的气候模型得到改进。这些改进的模型将有助于更好地预测气候和北极冰盖的持久性，因为如果大气中的二氧化碳含量高于目前的水平，就可能发生全球变暖。

ABSTRACT OPP-9701523 OPP-9701880 BROOKS, STEVEN MASLANIK, JAMES NATIONAL OCEANIC AND UNIVERSITY OF COLORADO 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 utilize measurements of the flux of heat from different surface ice conditions of the permanent ice cap of the Arctic Ocean. Their results will help determine how atmospheric and oceanic heating is coupled to adsorption of heat by the ice. These measurements are critical to understanding how heat is reflected or absorbed by the sea ice as it melts in the summer and thickens in the winter in response to seasonal variations in climate. The measurements of surface ice conditions will be incorporated into a modeling program that makes an essential contribution to the measurements and modeling by the SHEBA team of researchers. This project will be integral to the full SHEBA measurement program of atmospheric and oceanic variables conducted 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 and sea ice models 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.