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

本次研讨会将回顾风暴路径、急流及其变率模式动力学的最新进展，并讨论与区域应对气候变化有关的关键问题。会议将重点关注最近取得显著进展的研究领域，以及新兴主题：风暴路径对气候变化的响应特征、风暴路径的模式等级、模式偏差、低频变异性、与冰冻圈、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。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降水、温度和风的区域分布。关于气候变化的影响，最紧迫的问题之一是风暴路径将如何变化。虽然综合气候模式预测中纬度纬向平均西风带会因全球变暖而向极地移动，但观测证据不一，而且这种移动不一定会在区域内发生，特别是在北半球。了解区域反应的动态和稳健性的重要性不容低估。它需要更好地理解风暴路径和急流的时间平均结构、它们的低频变异性以及边界条件（冰冻圈、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）也受到与水分和云耦合的影响。研讨会将于2015年8月24日至28日在瑞士格林德沃举行。美国国家科学基金会将资助大约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.