Evaluating Heat Exchange Between Arctic Leads and Underlying Water of Adjacent Ice By Be-7 Measurements

摘要 粤ICP备0901067号 大卫·卡德科 迈阿密大学 该研究项目是一个辅助项目，将与一个大型的、协调的、多研究者的项目-北极海洋表面热量收支（SHEBA）-一起进行。 这项研究计划将在一艘被冻成冰块的船上进行14个月。这名研究人员将测量冰中的铍同位素浓度，以及冰中海洋出现在表面的开放区域，以确定有多少来自融水的热量被添加到海洋中。 这项研究对于确定辐射到浮冰上的热通量随大气和海洋条件变化而产生的影响具有重要意义。研究结果将有助于确定大气加热如何与海冰吸收热量相结合，并在融化过程中转移到海洋。这些测量对于了解热量是如何被冰反射或吸收的非常重要，因为冰在夏天融化，在冬天变厚，以应对气候的季节性变化。该项目和更大的SHEBA计划的组合测量将使北极地区的气候模型更加精确。这些改进的模型将有助于更好地预测气候以及在如果大气中二氧化碳含量超过目前水平而可能出现的拟议全球变暖情况下北极冰盖的永久性。

ABSTRACT OPP-9701067 KADKO, DAVID MIAMI UNIVERSITY This research project is an ancillary project to be conducted in conjunction with 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. This investigator will measure the concentration of Beryllium isotopes in the ice and open areas in the ice where the ocean occurs at the surface to determine how much heat from the melt water is added to the ocean . This research will be important for the determination of the effects of the flux of incoming heat radiating onto the ice floe as a function of changing atmospheric and oceanic conditions. The results will help determine how atmospheric heating is coupled to adsorption of heat by the sea ice and transferred to the ocean during melting. These measurements are important 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 combined set of measurements of this project and the larger SHEBA program 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.