RUI: Stratospheric Warming and Its Relationship to Surface Climate

本科生研究机构(RUI)项目将在平流层突然变暖现象的背景下调查平流层和对流层的相互作用。最近，观测分析重新点燃了人们对平流层环流的兴趣，包括突然变暖，该分析表明，极地纬度对流层变化的一个主要模式--北半球环状模式--受到平流层环状异常向下迁移的影响。平流层极涡的变化与对流层纬向平均纬向风和环流模式(如北极涛动/北大西洋涛动)的季节性异常有关。这些模式对欧洲和北美的气候和天气产生了深远的影响。Limpasuvan博士将对对流层和平流层的耦合机制进行动态的客观分析，包括波的传播。还将对与突然变暖有关的热量和动量通量进行诊断。该项目将促进对平流层对地面天气和气候影响的机制的理解。该项目将吸引卡罗莱纳海岸大学的本科生参与，努力将研究融入学校的科学教育，并加强该机构新的应用物理课程。它将为南卡罗来纳州和大东南部地区的本科生提供宝贵和独特的研究经验。

The Research in Undergraduate Institutions (RUI) project will investigate interaction of the stratosphere and troposphere in context of the stratospheric sudden warming phenomenon. Interest in the stratospheric circulation, including sudden warming, has recently been rekindled by observational analysis that suggests that a primary mode of tropospheric variability in polar latitudes - the Northern Hemisphere Annular Mode - is influenced by the downward migration of annular anomalies from the stratosphere. Variations in stratospheric polar vortex have been linked to seasonal anomalies in the tropospheric zonal-mean zonal winds and circulation patterns such as the Arctic Oscillation/North Atlantic Oscillation. These patterns have profound impact on European and North American climate and weather. Dr. Limpasuvan will conduct a dynamically oriented objective analysis of the mechanisms coupling the troposphere and stratosphere, including wave propagation. Diagnosis of heat and momentum fluxes associated with sudden warming will also be undertaken. The project will advance the understanding of mechanisms responsible for stratosphere's influence on surface weather and climate. The project will involve undergraduate students at Coastal Carolina University in an effort to integrate research into the school's science education, and strengthen the institution's new Applied Physics program. It will provide valuable and unique research experience to undergraduates in South Carolina and the greater southeastern region.