Yongwei Sheng
Department of Geography
1255 Bunche Hall
Los Angeles, CA 90095-1524
t: 310.825.1415
f: 310.206.5976
email: YSHENG@GEOG.UCLA.EDU
office: 1175 BUNCHE HALL
EDUCATION
Ph.D. Environmental Science, Policy and Management, University of California, Berkeley, 2000
M.E. Earth Sciences, Zhejiang University, China, 1991
B.S. Earth Sciences, Zhejiang University, China, 1988
SUBFIELDS
GIS; Remote Sensing; Photogrammetry; Environmental Studies; Forestry; Global Lake Dynamics; Global Change
RESEARCH INTERESTS
My research goal is to contribute to the development of scientific, theoretical and methodological aspects of Geographic Information Systems and Technologies (GIST). My research interests include geographic information acquisition, uncertainty in geographic information, 3-D information technologies for GIScience. I have been involved in many research projects using GIST as a tool to address natural resources and environmental issues. My current research goal is to understand global lake dynamics, especially in the regions sensitive to climate change, through several NSF and NASA funded projects.
GRANTS
NASA, New Investigator Program (2006 -- 2009). "Satellite-based Lake Dynamics in the Tibetan Plateau in the Context of Global Change." PI: Yongwei Sheng
NSF, Arctic System Sciences Program (2007 -- 2010). "Collaborative Research: Changes in Lake Dynamics on the Arctic Coastal Plain of North America Over the Past Half-Century." PI: Yongwei Sheng, Co-PI: L.C. Smith
NASA, Terrestrial Hydrology Program (2007 -- 2010). "Growing or Going? A Pan-Arctic Assessment of Recent Terrestrial Water Storage Change in High-Latitude Lakes and Wetlands." PI: Yongwei Sheng, Co-PI: L.C. Smith
AWARDS
2006: New Investigator Award, National Aeronautics and Space Administration (NASA).
2006: Top 100 Science Story of 2005, Discover Magazine.
GRAD STUDENTS
Andrew Fricker: Ph.D. student
Evan Lyons: Ph.D. student
Chintan A. Shah: Ph.D. student
SELECTED PUBLICATIONS
Sheng, Y. 2007. Minimising Algorithm-Induced Artefacts in True Ortho-Image Generation: A Direct Method Implemented in the Vector Domain. Photogrammetric Record, 22 (118): 151-163.
Smith, L.C., Y. Sheng, and G.M. MacDonald, 2007. A First Pan-Arctic Assessment of the Influence of Glaciation, Permafrost and Peatlands on Northern Lake Distribution. Permafrost and Periglacial Processes, 18 (2): 201-208.
MacDonald, G.M., D.W. Beilman, K.V. Kremenetski, Y. Sheng, L.C. Smith, A.A. Velichko, 2006. Rapid Early Development of Circumarctic Peatlands and Atmospheric CH4 and CO2 Variations. Science, 314 (5797): 285-288.
Smith, L.C., Y. Sheng, F.J. Magilligan, N.D. Smith, B. Gomez, L.A.K. Mertes, W.B. Krabill and J.B. Garvin. 2006. Geomorphic Impact and Rapid Subsequent Recovery from the 1996 Skei餫r醨sandur J鰇ulhlaup, Iceland, Measured with Multi-year Airborne Lidar. Geomorphology, 75 (1-2): 65 - 75.
Sheng, Y. 2005. Theoretical Analysis of the Iterative Photogrammetric Method to Determining Ground Coordinates from Photo Coordinates and a DEM. Photogrammetric Engineering & Remote Sensing, 71 (7): 863 - 871.
Sheng, Y. and D. Alsdorf. 2005. Automated Ortho-Rectification of Amazon Basin-Wide SAR Mosaics Using SRTM DEM Data. IEEE Transactions on Geoscience and Remote Sensing, 43 (8): 1929-1940.
Smith, L.C, Y. Sheng, G.M. MacDonald, and L.D. Hinzman. 2005. Disappearing Arctic Lakes. Science, 308 (5727): 1429.
Sheng, Y., L.C. Smith, G. MacDonald, K.V. Kremenetski, K.E. Frey, A.A. Velichko, M. Lee, D.W. Beilman, and P. Dubinin. 2004. A High-Resolution GIS-Based Inventory of the West Siberian Peat Carbon Pool. Global Biogeochemical Cycles, 18 (30): GB3004: 1-14 (doi:10.1029/2003GB002190).
Sheng, Y. 2004. Comparative Evaluation of Iterative and Non-Iterative Methods to Ground Coordinate Determination from Single Aerial Images. Computers & Geosciences, 30 (3): 267-279.
Smith, L.C., G.M. MacDonald, A.A. Velichko, D.W. Beilman, O.K. Borisova, K.E. Frey, K.V. Kremenetski, and Y. Sheng. 2004. Siberian Peatlands a Net Carbon Sink and Global Methane Source since the Early Holocene. Science, 303 (5656): 353-356.
Smith, L.C., Y. Sheng, R.R. Forster, K. Steffen, K.E. Frey, and D.E. Alsdorf. 2003. Melting of Small Arctic Ice Caps Observed from ERS Scatterometer Time Series. Geophysical Research Letters, 30 (20): 2034: 1-4 (doi: 10.1029/2003GL017641).
Sheng, Y., P. Gong, and G.S. Biging. 2003. True Orthoimage Production for Forested Areas from Large-Scale Aerial Photographs. Photogrammetric Engineering & Remote Sensing, 69 (3): 259-266.
Sheng, Y., P. Gong and G.S. Biging. 2003. Model-based Conifer Canopy Surface Reconstruction from Photographic Imagery: Overcoming the Occlusion, Foreshortening and Edge Effects. Photogrammetric Engineering & Remote Sensing, 69 (3): 249-258.
Gong, P., Y. Sheng and G.S. Biging. 2002. 3D Model-Based Tree Measurement from High-Resolution Aerial Imagery. Photogrammetric Engineering & Remote Sensing, 68 (11): 1203-1212.
Sheng, Y., L.C. Smith, K.E. Frey, and D.E. Alsdorf. 2002. A High Temporal-Resolution Dataset of ERS Scatterometer Radar Backscatter for Research in Arctic and Sub-Arctic Regions. Polar Record, 38 (205): 121-126.
Sheng, Y., P. Gong and G.S. Biging. 2001. Model-Based Conifer-Crown Surface Reconstruction from High-Resolution Aerial Images. Photogrammetric Engineering & Remote Sensing, 67 (8): 957-965.
Sheng, Y., P. Gong, and Q. Xiao. 2001. Quantitative Dynamic Flood Monitoring with NOAA/AVHRR. International Journal of Remote Sensing, 22 (9): 1709-1724.
Su, Y., and Y. Sheng. 1999. Visualizing Upwelling at Monterey Bay in an Integrated Environment of GIS and Scientific Visualization. Marine Geodesy: An International Journal of Ocean Surveys, Mapping, and Sensing, 22 (2): 93-104.
Gong, P., G. S. Biging, S. M. Lee, X. Mei, Y. Sheng, R. Pu, B. Xu, K. P. Schwarz, and M. Mostafa. 1999. Photo Ecometrics for Forest Inventory. Geographic Information Sciences, 5 (1): 9-14.
Sheng, Y., Y. Su, and Q. Xiao. 1998. Challenging the Cloud-Contamination Problem in Flood Monitoring with NOAA/AVHRR Imagery. Photogrammetric Engineering & Remote Sensing, 64 (3): 191-198.
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