Collaborative Research: Observing the Atmospheric Boundary over the West Antarctic Ice Sheet

西南极上空的近地表大气是地球上变暖最快的地区之一。这种大气变暖，加上海洋强迫，正在导致冰盖融化，从而导致全球海平面上升。设想了一项以西南极冰盖上方的大气边界层为重点的观测活动。在西南极冰盖分割野外营地，将使用一座30米高的仪表塔进行一套强大的全年、自主、大气和地表测量。在该项目的第二年期间，还将开展另一项无人驾驶航空系统实地活动，对西南极冰盖高塔观测进行补充，对边界层深度进行采样。南极大气边界层这一更广泛的主题显然支持一系列研究活动，从湍流混合物理、其参数化和对气象预报的限制，甚至气候影响，如表面质量和能量平衡。随着Thwaites WAIS计划的到来，一套计量观测设备将是NSF/NERC(英国)Thwaites联合现场活动的一个受欢迎的补充。这一提议的气象学家在南极率先开发了30米高的塔楼(TT)和无人驾驶航空系统(UAS)，并处于有利地位，能够成功地开展和分析这项工作。反过来，这些观察结果促进我们了解大气如何与冰盖交换热量的可能性很高。这一奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。

The near surface atmosphere over West Antarctica is one of the fastest warming locations on the planet. This atmospheric warming, along with oceanic forcing, is contributing to ice sheet melt and hence rising global sea levels. An observational campaign, focused on the atmospheric boundary layer over the West Antarctic ice sheet, is envisioned. A robust set of year-round, autonomous, atmospheric and surface measurements, will be made using an instrumented 30-m tall tower at the West Antarctic ice sheet divide field camp. An additional unmanned aerial system field campaign will be conducted during the second year of this project and will supplement the West Antarctic ice sheet tall tower observations by sampling the depths of the boundary layer.The broader subject of the Antarctic ABL clearly supports a range of research activities ranging from the physics of turbulent mixing, its parameterization and constraints on meteorological forecasts, and even climatological effects, such as surface mass and energy balances. With the coming of the Thwaites WAIS program, a suite of metrological observables would be a welcome addition to the joint NSF/NERC (UK) Thwaites field campaigns. The meteorologists of this proposal have pioneered 30-m tall tower (TT) and unmanned aerial system (UAS) development in the Antarctic, and are well positioned to successfully carry out and analyze this work. In turn, the potential for these observations to advance our understanding of how the atmosphere exchanges heat with the ice sheet is high.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.