Vegetation remote sensing: Leaf area index (LAI), Clumping effect, Scale effect

LiDAR remote sensing: Terrestrial laser scanner (TLS), Airborne laser scanner (ALS), Spaceborne laser scanner

Ecological remote sensing：Spatial-temporal assessment of forest, grassland, and wetland ecosystem

Sep 2015 – Aug 2018, University of Strasbourg
Ph.D. in Remote Sensing, École Doctorale MSII, ICube Lab, TRIO Group
Supervisor: Françoise Nerry 

Sep 2012 – Jul 2018 , Beijing Normal University
Ph.D. in Geography, School of Geography
Supervisor: Xiaowen Li, Guangjian Yan

Sep 2008 – Jul 2012 , Beijing Normal University
B.Sc. (Honors) in Geography, School of Geography

July 2019 – Aug 2021, Lecturer, University of Chinese Academy of Science

Sep 2021 – , Associate Professor, University of Chinese Academy of Science

Physics of remote sensing

Remote Sensing Image Processing

2019

G. Yan*, R. Hu*, J. Luo, W. Marie, H. Jiang, X. Mu, D. Xie, W. Zhang: Review of indirect optical measurements of leaf area index: Recent advances, challenges, and perspectives. Agricultural and Forest Meteorology, 2019, 265: 390-411. (PDF)

Q. Ran, Y. Hao, A. Xia, W. Liu, R. Hu, X. Cui, K. Xue, X. Song, C. Xu, B. Ding, Y. Wang*: Quantitative Assessment of the Impact of Physical and Anthropogenic Factors on Vegetation Spatial-Temporal Variation in Northern Tibet. Remote Sensing, 2019, 11(10): 1183.

L. Chen, G. Yan, T. Wang, H. Ren, R. Hu, S. Chen, H. Zhou: Spatial Scale Consideration for Estimating All-Sky Surface Shortwave Radiation With a Modified 1-D Radiative Transfer Model. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2019, 12(3): 821-835.

2018

R. Hu, E. Bournez, S. Cheng, H. Jiang, F. Nerry, T. Landes, M. Saudreau, P. Kastendeuch, G. Najjar, J. Colin, G. Yan: Estimating the leaf area of an individual tree in urban areas using terrestrial laser scanner and path length distribution model. ISPRS Journal of Photogrammetry and Remote Sensing. 2018, 144: 357-368. (PDF)

R. Hu, G. Yan, F. Nerry, Y. Liu, Y. Jiang, S. Wang, Y. Chen, X. Mu, W. Zhang, D. Xie: Using Airborne Laser Scanner and Path Length Distribution Model to Quantify Clumping Effect and Estimate Leaf Area Index. IEEE Transactions on Geoscience and Remote Sensing. 2018, 56(6): 3196-3209. (PDF)

Y. Chen, W. Zhang, R. Hu, J. Qi, Dan Li, W. Peng, C. Qiao, A. Shen, G. Yan: Estimation of forest leaf area index using terrestrial laser scanning data and path length distribution model in open-canopy forests. Agricultural and Forest Meteorology. 2018, 263:323-333.

2017

X. Mu, R. Hu, Y. Zeng, T. R. McVicar, H. Ren, W. Song, Y. Wang, R. Casa, J. Qi, D. Xie, G. Yan: Estimating structural parameters of agricultural crops from ground-based multi-angular digital images with a fractional model of sun and shade components. Agricultural and Forest Meteorology. 2017, 246: 162-177.

D. Xie, Y. Wang, R. Hu, Y. Chen, G. Yan, W. Zhang, P. Wang: Modified gap fraction model of individual trees for estimating leaf area using terrestrial laser scanner. Journal of Applied Remote Sensing. 2017, 11(3): 035012.

2016

R. Hu, J. Luo, G. Yan, Jie Zou, X. Mu: Indirect Measurement of Forest Leaf Area Index Using Path Length Distribution Model and Multispectral Canopy Imager. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing. 2016, 9(6): 2532-2539.

Y. Wang, D. Xie, S. Liu, R. Hu, Y. Li, G. Yan: Scaling of FAPAR from the Field to the Satellite. Remote Sensing. 2016, 8(4): 310.

G. Yan, R. Hu*, Y. Wang, H. Ren, W. Song, J. Qi, Ling Chen: Scale Effect in Indirect Measurement of Leaf Area Index. IEEE Transactions on Geoscience and Remote Sensing. 2016, 54(6): 3475-3484. (PDF)

G. Yan, R. Hu, J. Luo, X. Mu, D. Xie, W. Zhang: Review of indirect methods for leaf area index measurement. Journal of Remote Sensing, 2016, 20(5): 958-978.(In chinese)

2015

Y. Zeng, J. Li, Q. Liu, R. Hu, X. Mu, W. Fan, B. Xu, G. Yin, S. Wu: Extracting Leaf Area Index by Sunlit Foliage Component from Downward-Looking Digital Photography under Clear-Sky Conditions. Remote Sensing. 2015; 7(10): 13410-13435.

2014

R. Hu, G. Yan, X. Mu, J. Luo. Indirect measurement of leaf area index on the basis of path length distribution. Remote Sensing of Environment. 2014, 155: 239–247. (PDF)

2013

H. Ren, G. Yan, R. Liu, R. Hu, T. Wang, X. Mu. Spectral recalibration for in-flight broadband sensor using man-made ground targets. IEEE Transactions on Geoscience and Remote Sensing. 2013, 51(7): 4316 - 4329.

H. Ren, G. Yan, R. Liu, F. Nerry, Z-L Li, R. Hu. Impact of sensor footprint on measurement of directional brightness temperature of row crop canopies. Remote Sensing of Environment. 2013, 134: 135-151.

2012

R. Hu, G. Yan. Indirect measurement of forest LAI to deal with the underestimation problem based on Beer-Lambert law. Journal of Geo-Information Science. 2012, 14: 366-375. (In chinese)

R. Hu, X. Li, H. Wei, L. Zhang, Y. Lei, J. Wang. Drought risk assessment model of mountainous area based on DEM: A case of southwest china. Journal of Natural Disasters. 2012, 21: 157-162. (In chinese)

​Guangjian Yan, Wuming Zhang, Yaqi Liu, Huazhong Ren, Ronghai Hu (Software development & Instrument integration), Zhen Zhu, Xia Meng. A portable multi-angle observation system (MAOS). National Invention Patent of China 201210589574.8, Classification: G01C1/00(2006.01)I., 2014.

1. Correcting Forest Clumping Effect Using Airborne Lidar and Path Length Distribution Model. 2019 AGU Fall Meeting, San Francisco, USA, 2019.
2. Accurate Estimation of Fractional Vegetation Cover at Various Flight Altitudes Using UAV- based Digital Photos. International Workshop on Quantitative Remote Sensing for Heterogeneous Land Surface; 07/2016
3. Spatial scale effect on vegetation phenological analysis using remote sensing data. 2016 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), Beijing, China, 2016.
4. Indirect measurement of forest leaf area index using path length model and Multispectral Canopy Imager. 2015 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), Milan, Italy, 2015.
5. A portable multi-angle observation system. 2012 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), Munich, Germany, 2012.
6. A method for leaf gap fraction estimation based on multispectral digital images from Multispectral Canopy Imager. 2011 IEEE International Geoscience and Remote Sensing Symposium(IGARSS), Vancouver, BC, Canada, 2011.