Collaborative Research: Explicit Modeling of the Summertime SHEBA Sea Ice Pack

OPP-9701592 OPP-9701990斯蒂尔，迈克尔·霍尔特，华盛顿本杰明大学喷气推进实验室OPP-9702040霍普金斯大学，马克寒冷地区研究和环境实验室这个研究项目是一个大型的、协调的、多个调查者计划的关键组成部分，北冰洋表面热量平衡。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。这些调查人员将利用对北冰洋永久冰帽的热和动力条件的测量，将其纳入一个模拟项目，该项目将确定导致夏季海冰融化的因素。他们的结果将有助于确定大气和海洋加热如何与冰层对热量的吸收相耦合。这些测量对于理解海冰如何反射或吸收热量至关重要，因为海冰在夏季融化，在冬季变厚，以应对气候的季节性变化。该模拟计划对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和冰下的冰和海洋属性测量来测量大气和海洋变量。沙巴的一套测量和海冰模型的组合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。

ABSTRACT OPP-9701592 OPP-9701990 STEELE, MICHAEL HOLT, BENJAMIN UNIVERSITY OF WASHINGTON JET PROPULSION LABORATORY OPP-9702040 HOPKINS, MARK COLD REGIONS RESEARCH AND ENVIRONMENTAL LABORATORIES 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 thermal and dynamic conditions of the permanent ice cap of the Arctic Ocean to be incorporated into a modeling project that will determine the factors responsible for the summer melting of the sea ice. 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 modeling program makes an essential contribution to the SHEBA team of researchers who will measure atmospheric and oceanic 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 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.