Theoretical Studies of Cold Air Damming

持续，稳定和浅圆顶的冷空气阻碍了 在阿巴拉契亚山脉南部的东坡以西 是深秋和冬季常见的中尺度特征。因为 在东部邻近的温暖得多的大西洋沃茨水域中，这一点 冷空气阻塞是区分预报的一个主要因素， 雨水来自那些更危险的冰冻降水形式 (snow，雨夹雪，冻雨和雨）。当它存在时， 持续的，它也有利于快速的起源和加剧 沿海冬季风暴不幸的是， 观测、分析和预报系统，以及缺乏 理论上的理解，导致这些预测不佳 事件类似的现象也发生在沿着科罗拉多的前山脉， 影响丹佛-柯林斯堡地区的大雪分布 城市走廊，并已记录在其他山坡上 世界各地徐的目标是提高我们对寒冷的理解 空气阻塞，并制定诊断的定量标准 以及对其后果的短期预测。 他是一 杰出的年轻研究者，被公认为 考虑混凝土的理论流体力学家领导小组 天气预报问题。

Persistent, stable and shallow domes of cold air dammed to the west by the eastern slopes of the southern Appalachian mountains are a common mesoscale feature in the late fall and winter. Because of the neighboring, much warmer Atlantic waters to the east, this cold air damming is a major factor in distinguishing forecasts of rain from those of the more dangerous frozen precipitation forms (snow, sleet, freezing drizzle and rain). When it is present and persistent it also favors the rapid genesis and intensification of coastal winter storms. Unfortunately, inadequate resolution of the observational, analysis and forecast systems, as well as a lack of theoretical understanding, have caused poor forecasts of these events. Similar phenomena also occur along Colorado's Front Range, affecting the distribution of heavy snow in the Denver-Fort Collins urban corridor, and have been documented on other mountain slopes around the world. Xu's goal is to improve our understanding of cold air damming and to develop quantitative criteria for the diagnosis and short term forecasting of its consequences. He is an outstanding younger investigator and is recognized as one of the leading group of theoretical hydrodynamicists considering concrete weather forecasting problems.