Workshop on Storm Tracks, Jets, and their Modes of Variability in Switzerland; August 24-28, 2015

这次讲习班将审查关于风暴路径、急流及其变化模式的动态的最新进展，并讨论与区域应对气候变化有关的关键问题。会议将集中讨论最近取得显著进展的研究领域，以及新出现的主题：风暴路径对气候变化反应的特征、风暴路径的模式层次、模式偏差、低频可变性、与冰冻层、海洋、平流层和热带的耦合、与湿气和云的耦合以及与极端事件的联系。风暴路径和急流及其变率模式影响着两个半球中纬度地区的降水、温度和风的分布。有关气候变化影响的最紧迫问题之一是风暴路径将如何变化。虽然综合气候模型预测，随着全球变暖，纬向平均的中纬度西风向极地移动，但观测证据喜忧参半，这种变化不一定发生在地区，特别是在北半球。不能低估了解区域反应的力度和稳健性的重要性。它需要更好地了解确定风暴路径和急流的时间平均结构的条件、它们的低频变率以及边界条件(冰冻层、海洋、平流层和热带)的作用。由此产生的气候和天气变化(例如，极端事件的可能性)也受到湿气和云的影响。研讨会将于2015年8月24-28日在瑞士格林德尔瓦尔德举行。NSF基金将支持大约6名来自美国的早期职业科学家的旅费。

This workshop will review recent advances on the dynamics of storm tracks, jets and their modes of variability and to address key questions related to the regional response to climate change. The conference will focus on areas of research in which recent progress has been notable, along with emerging themes: characterization of storm track response to climate change, model hierarchies of the storm tracks, model biases, low-frequency variability, coupling to the cryosphere, ocean, stratosphere and tropics, coupling with moisture and clouds and connection to extreme events.Storm tracks and jets, together with their modes of variability, affect the regional distribution of precipitation, temperature, and wind in the midlatitudes of both hemispheres. One of the most pressing questions regarding the impacts of climate change concerns how storm tracks will change. While comprehensive climate models predict a poleward shift of the zonal-mean midlatitude westerlies in response to global warming, observational evidence is mixed, and such a shift does not necessarily occur regionally, particularly in the Northern Hemisphere. The importance of understanding the dynamics and robustness of the regional response cannot be understated. It requires a better understanding of the conditions setting the time-mean structure of the storm tracks and jets, their low-frequency variability, and the role of boundary conditions (cryosphere, ocean, stratosphere, and tropics). The resulting changes to climate and weather (e.g., likelihood of extreme events) are also affected by coupling with moisture and clouds.The workshop will be held in Grindelwald, Switzerland 24-28 August 2015. NSF funds will support travel costs for approximately 6 early career scientists from the U.S.