A Lake-ICE Project: Operations Center and Multi-Scale Numerical Investigations

9708314的黎波里 驱动大气环流的大部分能量是通过与地表交换热量、水分和动量获得的。 湖泊效应天气事件，即冷空气团在五大湖上空迅速改变，是研究这些交换的极好的自然实验室。湖泊诱导对流实验（Lake-ICE）是一个多名首席研究员的项目，旨在利用这个天然实验室来确定边界层生长过程如何受到中尺度边界层对流结构的控制，以及修改后的边界层如何影响降水的产生和更大规模的气象条件。 根据该奖项，首席研究员建议研究对流行星边界层如何组织以应对不断变化的环境流动结构。 研究人员将利用一套先进的数值模型，沿着观察湖冰期间收集。 最终的目标是弥合差距在理解的干对流行星层的大涡发生在逆风侧的五大湖的背风侧的线性云卷。 如果成功的话，这项研究将导致一个统一的理论，线性云卷成因和相互作用的因素与大规模的环境流的成因。 这可能最终导致更好地预测湖泊效应降雪事件的时间，位置和规模。 ***

9708314 Tripoli Much of the energy that drives atmospheric circulations is obtained through exchanges of heat, moisture, and momentum with the surface. Lake-effect weather events, where cold air masses are rapidly modified over the Great Lakes, are excellent natural laboratories for studying these exchanges. The Lake-Induced Convection Experiment (Lake-ICE) is a multiple-Principal Investigator project which seeks to use this natural laboratory to determine how boundary layer growth processes are controlled by mesoscale boundary layer convective structures and how the modified boundary layer effects the production of precipitation and the larger scale meteorological conditions. Under this award the Principal Investigator proposes to investigate how the convective planetary boundary layer organizes in response to the evolving environmental flow structure. The researcher will utilize a suite of advanced numerical models along with observations to be collected during the Lake-ICE. The ultimate objective is to bridge the gap in understanding of the large eddies in the dry convective planetary layer that occurs on the upwind side of the Great Lakes to that of the linear cloud rolls on the lee side. If successful, this research will lead to a unified theory of linear cloud roll genesis and the interaction of the factors responsible for that genesis with the larger-scale environmental flows. This could lead eventually to better forecasts of timing, location and magnitude of lake-effect snow events. ***