Wenjian, Ni
Email: wenjian@umd.edu; Mobile: 001-240-528-0467; Phone: 001-301-314-2637
Affiliation: Department of geographical sciences, University of Maryland, college park. 20740
OBJECTIVE & RESEARCH INTEREST
Regional mapping of forest biomass using SAR, lidar and photogrammetry data;
Assessments and modeling of forest carbon cycle.
Polarimetric SAR information extraction;
Modeling of Radar backscattering over vegetated areas.
EDUCATION
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Graduate University of Chinese Academy of Sciences, China
(09/2004 -07/2009)
st
Ph.D degree on July 1 2009 in Cartography and Geographical information system
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Shandong University of Technology, China
(09/2000 - 07/2004)
B.S degree in Surveying and Mapping
RESEARCH EXPERIENCE
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Research Associate, Department of geography, University of Maryland, college park, 07/2010- Present
PUBLICATION
Journal Papers
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Wenjian Ni, Guoqing Sun, Zhiyu Zhang, Zhifeng Guo, Yating He. 2013, “Co-registration of two DEMs: impacts
on forest height estimation from SRTM and NED at mountainous areas”. IEEE Geosciences and
Remote Sensing Letter. DOI: 10.1109/LGRS.2013.2255580
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Wenjian Ni, Zhiyu Zhang, Guoqing Sun, Yating He, Zhifeng Guo. 2013 “A Heuristic Approach to Reduce
Atmospheric Effects in InSAR Data for the Derivation of Digital Terrain Models or for the
Characterization of Forest Vertical Structure”. IEEE Geosciences and Remote Sensing Letter. DOI:
10.1109/LGRS.2013.2255579
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Wenjian Ni, Guoqing Sun, Zhifeng Guo, Zhiyu Zhang, Yating He, Wenli Huang , 2013, Retrieval of Forest
Biomass from ALOS PALSAR Data Using a Lookup Table Method, IEEE Journal of Selected
Topics in Applied Earth Observations and Remote Sensing. 6(2):875-886.
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Wenjian Ni，Zhifeng Guo，Guoqing Sun，Huabing Huang. 2011. A method for the registration of multiview
range images acquired in forest areas using a terrestrial laser scanner, International Journal of
Remote Sensing, vol. 32, issue 24, pp. 9769-9787.
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Wenjian Ni, Zhifeng Guo, Guoqing Sun, 2010, Improvement of A 3D Forest Radar Backscattering Model Using
Matrix-Doubling Method, Science in China D: Earth Sciences, 53(7): 1029-1035
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Wenjian Ni, Zhifeng Guo,Guoqing Sun, Huangbing Huang, 2010, Research on the extraction of tree structure
parameters Using terrestrial laser scanner data, High Technology Letters, 20(2):191-198 (in
chinese,with english abstract)
Papers undergoing review
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Wenjian Ni, Guoqing Sun, K. Jon Ranson, Zhiyu Zhang*, Zhifeng Guo, Wenli Huang, “Model based analysis
of the influence of forest structures on the scattering phase center at L-band”, IEEE Transaction
on Geosciences and Remote Sensing. (under 2nd round review).
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Wenjian Ni, Wenli Huang, Zhiyu Zhang*, Guoqing Sun, Zhifeng Guo, Yating He. “Data Fusion of PALSAR
InSAR data and ASTER GDEM for the mapping of forest biomass”. Remote Sensing of
Environment, (in revision for the 2nd round review).
Conference Proceedings (selected)
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Wenjian Ni, Zhifeng Guo， Guoqing Sun， Hong Chi，2010, Investigation of Forest Height Retrieval Using
SRTM-DEM and ASTER-GDEM，International Geoscience and Remote Sensing Symposium,
2010，2111-2114
Wenjian Ni, Zhifeng Guo, Zhiyu Zhang , Guoqing Sun, 2011, The annual behavior of backscattering and
coherence of PALSAR data. International Geoscience and Remote Sensing Symposium
(IGARSS2011), 2472-2475
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Wenjian Ni, Zhifeng Guo, Zhiyu Zhang, Guoqing Sun, Wenli Huang, 2012,“Semi-automatic extraction of digital
surface model using ALOS/PRISM data with ENVI”, IGARSS 2012, 6557 – 6560
OTHER ACTIVITIES
Served as reviewer for five professional Journals:
International Journal of Remote Sensing;
IEEE Geosciences and Remote Sensing Letter;
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Canadian Journal of Remote Sensing;
Remote Sensing
Served as the panel member of peer review for the full proposals submitted to NASA TE
2013
2/2