Variability in Jupiter's Weather and Climate

木星天气和气候的变化

• 批准号: 0808200
• 负责人: Philip Marcus
• 金额: $ 42万
• 依托单位: University of California-Berkeley
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-07-01 至 2012-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0808200&HistoricalAwards=false
• 关键词: Variability; Jupiter; Weather; Climate

AST-0808200MarcusJupiter's weather is currently undergoing a great change with multiple eruptions, the appearance of a new red spot, disturbances at, and south of, the equator and a shrinking Great Red Spot. The rapidity of this current upheaval is without precedent. This project will map Jupiter's velocity fields in all regions (except the poles) with errors smaller than five meters per second, which will result in vorticity maps with only 15% uncertainties. The velocity field maps will be made with recently tested automated techniques of measuring cloud motion from satellite images obtained over the last three decades by Voyager, Cassini, Galileo and, more recently, the Hubble Space Telescope. Numerical simulations that include the unobserved atmospheric parameters (vertical stratification, vertical changes in wind speed, and others) will find the 'best fit' choice by a genetic algorithm. The research should lead to a better understanding of both short- and long-term climate change on Jupiter, with possible application even to Earth's climate.As well as training a graduate student and a post-doc in astrophysics, high performance computation, and velocity extraction, the methods developed during this research should be useful for studies of stars. The team is also trying to develop them for bio-engineering, where they show promise for improving motion capture studies.

AST-0808200马库斯木星的天气目前正在经历一个巨大的变化，伴随着多次爆发，一个新的红斑的出现，赤道和赤道以南的扰动以及一个缩小的大红斑。 目前这场剧变的速度之快是史无前例的。 该项目将绘制木星所有区域（除了两极）的速度场，误差小于每秒5米，这将导致涡度图的不确定性只有15%。 速度场图将使用最近经过测试的自动化技术制作，这些技术是根据旅行者号、卡西尼号、伽利略号以及最近的哈勃空间望远镜在过去30年中获得的卫星图像测量云的运动。 包括未观测到的大气参数（垂直分层，风速的垂直变化等）的数值模拟将通过遗传算法找到“最佳”选择。 这项研究将有助于更好地了解木星的短期和长期气候变化，甚至可能应用于地球的气候。除了培养天体物理学、高性能计算和速度提取方面的研究生和博士后外，这项研究中开发的方法应该对恒星的研究有用。 该团队还试图将它们用于生物工程，在那里它们显示出改善动作捕捉研究的希望。