讲座摘要：

    The Earth system, including the atmosphere, hydrosphere, lithosphere, cryosphere and the interior of the solid Earth, is very complex due to the fluid mass transport, human activities, climate changes and celestial bodies’ motions as well as coupling and interaction of each component. Observing and understanding the Earth system are a challenge due to the lack of direct global observations. Recent space techniques, including VLBI, SLR, DORIS, GNSS, InSAR, LiDAR, ICESat, satellite radar and laser altimetry, satellite gravimetry (particularly CHAMP/GRACE/GOCE) and GNSS Reflectometry & Radio Occultation, are capable of measuring and monitoring such small changes within the Earth system with high accuracy and spatial-temporal resolution, which provide a unique opportunity to observe the Earth system associated with climate change and Earth motion, and to better understand these processes and their interaction within the Earth system. In this talk, recent results on observing and understanding the Earth system as well as their interactions are presented, including the atmospheric and ionospheric sounding, hydrologic cycle, ocean circulation and sea level change, glacier melting, surface deformation and solid-earth motion as well as coupling of solid-Earth and atmosphere/ionosphere, rotation motion and geocenter excitations from atmosphere+ocean+hydrology, etc.

个人介绍：

    金双根，男，1974年生，博士，中科院上海天文台百人计划，研究员，博士生导师，国际大地测量协会(IAG)会士和国际 行星科学协会(IAPS)副主席。2004年 至今，先后在澳大利亚新南威尔士大学访问学者、韩国天文与空间科学研究院博士后和高级研究员、韩国科学技术大学教授（联合）、美国 Texas大学空间研究中心(CSR)研 究员和中科院上海天文台研究员。长期从事卫星导航与GNSS遥感、卫星遥感与气候 变化和空间行星探测与动力学等。 在国际地学顶尖杂志发表80余篇学术论文、著作或教材5部、书章节10余 篇。担任国际行星科学协会(IAPS)副主席(2011-2013)和主席（2013-2015）、 国际大地测量协会 (IAG)分委员会主席(2011-2015)， 国际杂志Int. J. Geosci.主编(2010-)，J. Geod. Sci.， Positioning和J. GIS编 辑(2010-)，Adv. Space Res.和J. Geodynamics 专题执行编辑。获 韩国天文与空间科学研究院特别奖(2006)、中科院百人计划(2010)、国际大地测量协会(IAG)会 士(Fellow)(2011)、上海市浦江人才计划(2011)和中国地球物理学会傅承义青年科技奖(2012)。