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

该讲习班将审查风暴路径、急流及其变率模式动态方面的最新进展，并讨论与区域应对气候变化有关的关键问题。会议将侧重于最近取得显著进展的研究领域，沿着出现的主题是：风暴路径对气候变化响应的特征，风暴路径的模式层次，模式偏差，低频变率，与冰冻层、海洋、平流层和热带的耦合，与水分和云的耦合以及与极端事件的联系。影响两半球中纬度地区降水、温度和风的区域分布。关于气候变化影响的最紧迫问题之一是风暴路径将如何变化。虽然综合气候模式预测，随着全球变暖，纬向平均中纬度西风带将向极方向移动，但观测证据好坏参半，而且这种移动不一定发生在区域上，特别是在北方半球。了解区域对策的动态和力度的重要性不能低估。它需要更好地了解风暴路径和急流的时间平均结构的条件，它们的低频变化，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）也受到水分和云的耦合影响。研讨会将于2015年8月24日至28日在瑞士格林德瓦举行。NSF的资金将支持大约6名来自美国的早期职业科学家的旅行费用。

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.