2010-01~现在, Spatial Sciences Institute, University of Southern, Director
2007-01~现在, Department of Computer Science, University of Sout, Professor
2007-01~2010-01,Department of Geography, University of Southern Ca, Professor and Chair
2001-01~2007-01,Department of Geography, University of Southern Ca, Professor
1998-01~2001-01,Department of Geography, University of Southern Ca, Professor and Chair
1997-01~1998-01,Department of Geography, University of Southern Ca, Professor
1994-01~1997-01,Department of Plant and Soil Science, Montana Stat, Professor

2019-01-01-今,ISPRS International Journal of Geo-Information, Associate Editor
2018-01-01-今,International Journal of Disaster Response and Emergency Management, Associate Editor
2015-07-01-今,University Consortium for Geographic Information Science (UCGIS) Geographic Information Science and Technology Body of Knowledge Project (GIST-BoK), Editor-in-Chief
1998-07-01-今,Transactions in GIS, Editor-in-Chief

科技论文阅读与写作
scientific reading and writing
地理信息技术项目管理
遥感与地信
空间数据采集

   

（1） Communicating Science Spatially Category, Map Gallery, 二等奖, 其他, 2019
（2） Education Award, 特等奖, 其他, 2019
（3） Lifetime Achievement Award, International Association of Chinese Professionals  in Geographic Information Science , 其他, 2016
（4） Fellow, University Consortium for Geographic Information Science , 其他, 2014
（5） GIS Award for Leadershipwith Geospatial Technology, , 其他, 2008
（6） GIS Award for Leadership in Geospatial Teaching, , 其他, 2006
（7） Albert S. Raubenheimer Outstanding Faculty Award, , 其他, 2004

   

（ 1 ） 地形分析原理与应用, Terrain Analysis: Principles and Applications., New York, Wiley, 2000-01, 第 1 作者
（ 2 ） 地理信息科学手册, Handbook of Geographic Information Science., Oxford, Blackwell, 2007-01, 第 1 作者
Environmental Applications of Digital Terrain Modeling, Oxford, UK, 2018-03, 第 1 作者

   

（ 1 ） 外专****项目, 参与, 国家任务, 2014-06--2017-06

（1）Maximal reverse skyline query   2014-06-24