Dr. Qi Chen is a senior scientist with SIG and an assistant professor in the Department of Geography at the University of Hawaii at Manoa. He received his B.S. and M.S. degrees in from Nanjing University in China and a Ph.D. degree in Environmental Science, Policy, and Management from UC, Berkeley. He specializes in geospatial technologies (remote sensing and GIS), statistical learning, ecosystem modeling, and climate change. Dr. Chen is an expert in LiDAR remote sensing, especially its application in vegetation analysis. His research in LiDAR spans the use of airborne, spaceborne, and ground-based laser systems to map vegetation structure and physiognomy from individual tree scale to region and global scales. His recent research involves the synergistic use of LiDAR data with optical imagery such as high spatial resolution and hyper-spectral imagery for vegetation mapping. Dr. Chen is also an ecosystem modeler focusing on the impacts of land use and land cover change, climate change on ecosystem water and carbon cycling. In this regard, he is particularly interested in the use of remote sensing derived products to parameterize, initialize, and validate ecosystem models.