Publications

Peer-reviewed publications

2020

Potapov, P., Li, X., Hernandez-Serna, A., Tyukavina, A., Hansen, M. C., Kommareddy, A., … & Armston, J. (2020). Mapping global forest canopy height through integration of GEDI and Landsat data. Remote Sensing of Environment, 112165.

Sanchez-Lopez, N., Boschetti, L., Hudak, A. T., Hancock, S., & Duncanson, L. I. (2020). Estimating Time Since the Last Stand-Replacing Disturbance (TSD) from Spaceborne Simulated GEDI Data: A Feasibility Study. Remote Sensing12(21), 3506. 

Schneider, F. D., Ferraz, A. A., Hancock, S., Duncanson, L. I., Dubayah, R. O., Pavlick, R. P., & Schimel, D. S. (2020). Towards mapping the diversity of canopy structure from space with GEDI. Environmental Research Letters.

Burns, P., Clark, M., Salas, L., Hancock, S., Leland, D., Jantz, P., Dubayah, R. and Goetz, S.J. (2020). Incorporating canopy structure from simulated GEDI lidar into bird species distribution models. Environmental Research Letters, 15 (9), 95002.

Marshak, C., Simard, M., Duncanson, L., Silva, C. A., Denbina, M., Liao, T. H., … & Armston, J. (2020). Regional Tropical Aboveground Biomass Mapping with L-Band Repeat-Pass Interferometric Radar, Sparse Lidar, and Multiscale Superpixels. Remote Sensing12(12), 2048.

Marselis, Suzanne M., Katharine Abernethy, Alfonso Alonso, John Armston, Timothy R. Baker, Jean‐Francois Bastin, Jan Bogaert et al. (2020). Evaluating the potential of full‐waveform lidar for mapping pan‐tropical tree species richness. Global Ecology and Biogeography. 001– 18. 

Boucher, P. B., Hancock, S., Orwig, D. A., Duncanson, L., Armston, J., Tang, H., … & Elmes, A. (2020). Detecting Change in Forest Structure with Simulated GEDI Lidar Waveforms: A Case Study of the Hemlock Woolly Adelgid (HWA; Adelges tsugae) Infestation. Remote Sensing12(8), 1304.

Duncanson, L., Neuenschwander, A., Hancock, S., Thomas, N., Fatoyinbo, T., Simard, M., Silva, C.A., Armston, J., Luthcke, S.B., Hofton, M., Kellner, J., Dubayah, R. (2020) Biomass estimation from simulated GEDI, ICESat-2 and NISAR across environmental gradients in Sonoma County, California. Remote Sensing of Environment. 242. 111779.

Dubayah, R., Blair, J.B., Goetz, S., Fatoyinbo, L., Hansen, M., Healey, S., Hofton, M., Hurtt, G., Kellner, J., Luthcke, S., & Armston, J. (2020) The Global Ecosystem Dynamics Investigation: High-resolution laser ranging of the Earth’s forests and topography. Science of Remote Sensing, p.100002.

2019

Qi, W., Saarela, S., Armston, J., Ståhl,G., & Dubayah, R. (2019). Forest biomass estimation over three distinct forest types using TanDEM-X InSAR data and simulated GEDI lidar data. Remote Sensing of Environment, 232, 111-283.

Pardini, M., Armston, J., Qi, W., Lee, S.K., Tello, M., Cazcarra Bes, V., Choi, C., Papathanassiou, K.P., Dubayah, R.O., & Fatoyinbo, L.E. (2019) Early Lessons on Combining Lidar and Multi-baseline SAR Measurements for Forest Structure Characterization. Surveys in Geophysics, 40 (4), 803–837.

Patterson, P.L., Healey, S.P., Ståhl, G., Saarela, S., Holm, S., Andersen, H., Dubayah, R.O., Duncanson, L., Hancock, S., & Armston, J.(2019) Statistical properties of hybrid estimators proposed for GEDI—NASA’s global ecosystem dynamics investigation. Environmental Research Letters, 14 (6).

Tang, H., Armston, J., Hancock, S., Marselis, S., Goetz, S., & Dubayah, R. (2019). Characterizing global forest canopy cover distribution using spaceborne lidar. Remote Sensing of Environment231, 111262.

Marselis, S. M., Tang, H., Armston, J., Abernethy, K., Alonso, A., Barbier, N., … & Lee, S. K. (2019). Exploring the relation between remotely sensed vertical canopy structure and tree species diversity in Gabon. Environmental Research Letters14(9), 094013.

Qi, W., Lee, S. K., Hancock, S., Luthcke, S., Tang, H., Armston, J., & Dubayah, R. (2019). Improved forest height estimation by fusion of simulated GEDI Lidar data and TanDEM-X InSAR data. Remote Sensing of Environment, 221, 621-634.

Hancock, S., Armston, J., Hofton, M., Sun, X., Tang, H., Duncanson, L. I., James R. Kellner, & Dubayah, R. (2019). The GEDI Simulator: A Large‐Footprint Waveform Lidar Simulator for Calibration and Validation of Spaceborne Missions. Earth and Space Science, 6(2), 294-310.

2018

Saarela, S., Holm, S., Healey, S., Andersen, H.E., Petersson, H., Prentius, W., Patterson, P., Næsset, E., Gregoire, T., & Ståhl, G. (2018) Generalized Hierarchical Model-Based Estimation for Aboveground Biomass Assessment Using GEDI and Landsat Data. Remote Sensing, 10 (11), p.1832.

Silva, C. A.; Saatchi, S.; Alonso, M. G. ; Labriere, N. ; Klauberg, C. ; Ferraz, A. ; Meyer, V. ; Jeffery, K. J. ; Abernethy, K. ; White, L. ; Zhao, K. ; Lewis, S. L. ; Hudak, A. T. (2018) Comparison of Small- and Large-Footprint Lidar Characterization of Tropical Forest Aboveground Structure and Biomass: A Case Study from Central Gabon (Forthcoming/Available Online). IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, p. 1-15.

2017

Stavros, E.N., Schimel, D., Pavlick, R., Serbin, S., Swann, A., Duncanson, L., Fisher, J.B., Fassnacht, F., Ustin, S., Dubayah, R. and Schweiger, A., (2017). ISS observations offer insights into plant function. Nature Ecology & Evolution, 1 (10). DOI: 10.1038/s41559-017-0194

2016

Qi, W., & Dubayah, R. O. (2016). Combining Tandem-X InSAR and simulated GEDI lidar observations for forest structure mapping. Remote Sensing of Environment, 187, 253-266. DOI: 10.1016/j.rse.2016.10.018

Pardini, M., Qi, W., Dubayah, R., & Papathanassiou, K.P. (2016) Exploiting tandem-x POL-INSAR data for forest structure observation and potential synergies with NASA’s global ecosystem dynamics investigation lidar. In Proceedings of EUSAR 2016: 11th European Conference on Synthetic Aperture Radar, pp. 1-6. VDE, 2016.

2015

Coyle, D. B., Stysley, P. R., Poulios, D., Clarke, G. B., & Kay, R. B. (2015). Laser transmitter development for NASA’s Global Ecosystem Dynamics Investigation (GEDI) lidar. In Lidar Remote Sensing for Environmental Monitoring XV (Vol. 9612, p. 961208). International Society for Optics and Photonics.

Stysley, P.R., Coyle, B.D., Kay, R.B., Frederickson, R., Demetrios, P., Cory, K., Clarke, C., (2015). Long term performance of the High Output Maximum Efficiency Resonator (HOMER) laser for NASA׳s Global Ecosystem Dynamics Investigation (GEDI) lidar. Optics & Laser Technology 68, 67-72. DOI: 10.1016/j.optlastec.2014.11.001

Conference and proceedings publications

2020

AGU Fall Meeting, Virtual
A. Hansen, P. Burns J. Ervin, O. Venter, S. Goetz, J. Watson, M. Hansen, P. Jantz, A. Virnig, C. Supples, K. Barnett, R. Pillay, S. Atkinson, S. Rodríguez-Buritica, D. Armenteras. A policy-driven framework for conserving the best of Earth’s remaining moist tropical forests. AGUFM, 2020, B072-02.

C. Hakkenberg, S. J. Goetz. Scale Dependence in the Relationship between Forest Structural Diversity and Vascular Plant Diversity across Ecoclimatic Gradients. AGUFM, 2020, B071-02.

Jose Fagua, Patrick Jantz, Patrick Burns and Scott J Goetz. Exploring the potential of GEDI fusion with multi-sensor imagery for mapping the canopy height of diverse tropical forests of Colombia. AGUFM, 2020, B029-10.

Hao Tang, John David Armston, James Bryan Blair, Michelle A Hofton, Scott B Luthcke, Laura Duncanson, James R Kellner, Lei Ma, George C Hurtt, Scott J Goetz and Ralph Dubayah. Integrating GEDI, ICESat-1 and -2 to Characterize Vegetation Structure Dynamics: DOs and DON’Ts. AGUFM, 2020, B29-06.

Patrick Jantz, Jose Fagua, Susana Rodríguez-Buriticá, Maria Cecilia Londoño, Patrick Burns and Scott J Goetz. Mapping Vegetation Structure Gradients in Colombia With Spaceborne Lidar. AGUFM, B061-0014.

Carlos E. Silva, John Armston, Steve Hancock, Sarah Story, Michelle Hofton, Hao Tang, David Minor, James B. Blair, Ralph O. Dubayah. Evaluating GEDI Geolocation Uncertainty against Airborne Lidar: Implications for Footprint-level Analyses . AGUFM, 2020.

Wenlu Qi, John Armston, Ralph Dubayah, Victor Cazcarra-Bes, Koastas Papathanassiou, Matteo Pardini, Lola Fatoyinbo. Pantropical Forest Height and Structure Estimation from GEDI and TanDEM-X Data Fusion. AGUFM, 2020.

2019

AGU Fall Meeting, San Francisco , California
Qi, W., Armston, J. D., Tang, H., & Dubayah, R. Tropical forest structure and biomass mapping from fusion of GEDI lidar data and TanDEM-X InSAR data. AGUFM. B11E-2369.

Qi, W., Armston, J. D.,  Fatoyinbo T. , Cazcarra-Bes, V., Papathanassiou, K., Pardini M. & Dubayah, R. Fusing GEDI waveforms with spaceborne SAR data for improved forest structure estimation. AGUFM. B029-08.

Patrick J Burns, Matthew L Clark, Leo A Salas, Steven Hancock, Patrick Jantz and Scott J Goetz (2019). Incorporating canopy structure from simulated GEDI lidar into bird species distribution models. AGUFM, B11E-2367.

Patterson, Paul L.; Healey, Sean P.; Stahl, Goran; Saarela, Svetlana; Holm, Soren; Andersen, Hans-Erik; Dubayah, Ralph O.; Duncanson, Laura; Hancock, Steven; Armston, John; Kellner, James R.; Cohen, Warren B.; Yang, Zhiqiang. (2019). Statistical properties of hybrid estimators proposed for GEDI – NASA’s global ecosystem dynamics investigation. Environmental Research Letters. 14: 065007.

Chris Doughty, Mike Harfoot, Patrick Jantz, Scott J Goetz and Patrick J Burns (2019). Adding space-based vegetation structure measurements to a global ecosystem model to simulate tropical forest animal communities and their role in ecosystem function. AGUFM, 2019, B22A-04.

Matthew L Clark, Leonard Salas, Scott J Goetz, Patrick J Burns, Steven Hancock and Shawn Newsam (2019). Monitoring avian diversity with bioacoustics analysis, remote sensing and species distribution modeling. AGUFM, 2019, IN51E-0681.

2018
EGU, Vienna, Austria
Duncanson, L., Armston, J., Fatoyinbo,L., Simard, M., Thomas, N., Neuenschwander, A., Hancock,S., Hofton, M., Marselis, S., Kellner, J., Saatchi, S., Dubayah, R. (2018) Airborne Lidar for calibration and validation of spaceborne forest biomass and height products: Examples from NASA’s Carbon Monitoring System, AfriSAR and GEDI Missions. EGU April 8-13, 2018, Vienna, Austria. EGU2018-11923.

Science Team Meeting Summary

2017

AGU Fall Meeting, New Orleans, LA
Dubayah, R. and the GEDI Science Team. (2017). The GEDI strategy for improved mapping of forest biomass and structure. AGU Fall Meeting 2017, New Orleans, LA, USA. B11H-06.

Duncanson, L., Simard, M., Thomas, N., Neuenschwander, A., Hancock, S., Armston, J., Dubayah, R., Hofton, M.A., Huang, W., Tang, H., Marselis, S.M., Fatoyinbo, T. (2017). Fusion of GEDI, ICESAT2 & NISAR data for above ground biomass mapping in Sonoma County, California. AGU Fall Meeting 2017, New Orleans, LA, USA. B33F-06.

Hancock, S., Armston, J., Tang, H., Patterson, P.L., Healey, S.P., Marselis, S., Duncanson, L., Hofton, M.A., Kellner, J.R., Luthcke, S.B., Sun, X., Blair, J.B., Dubayah, R. (2017). The GEDI Performance Tool. AGU Fall Meeting 2017, New Orleans, LA, USA. B13A-1753.

Kellner, J.R., Armston, J., Blair, J.B., Duncanson, L., Hancock, S., Hofton, M.A., Luthcke, S.B., Marselis, S., Tang, H., Dubyaha, R. (2017). Algorithm theoretical basis for GEDI level-4A footprint aboveground biomass density. AGU Fall Meeting 2017, New Orleans, LA, USA. B33F-03.

Marselis, S., Tang, H., Blair, J.B., Hofton, M.A., Armston, J., Dubayah, R. (2017). Characterizing Exterior and Interior Tropical Forest Structure Variability with Full-Waveform Airborne LIDAR Data in Lopé, Gabon. AGU Fall Meeting 2017, New Orleans, LA, USA. B21B-1961.

Patterson, P.L., Healey, S.P., Ståhl, G., Saarela, S., Holm, S., Dubayah, R., Hancock, S. (2017). Statistical Properties for hybrid estimators of biomass that use GEDI waveform data. AGU Fall Meeting 2017, New Orleans, LA, USA. B13A-1755.

Qi, W., Hancock, S., Armston, J., Marselis, S., Dubayah, R. (2017). Forest biomass mapping from fusion of GEDI lidar data and TanDEM-X InSAR data. AGU Fall Meeting 2017, New Orleans, LA, USA. B13A-1752.

Science Team Meeting Summary

Silvilaser, Blacksburg, VA

Armston, J., Duncanson, L., Kellner, J., Marselis, S., Hancock, S., Tang, H., Hofton, M., Blair, B., Fatoyinbo, L., Dubayah, R. (2017). Calibration and validation of above ground biomass products from LVIS/GEDI: Results from the AfriSAR campaign. Silvilaser 2017, Blacksburg, Virginia, USA.

Duncanson, L., Armston, J., Hancock, S., Kellner, J., Marselis, S., Tang, H., Hofton, M., Goetz, S., Healey, S., Dubayah, R. (2017). Development of prediction strata for GEDI global above ground biomass modeling. Silvilaser 2017, Blacksburg, Virginia, USA.

Hancock, S., Armston, J., Tang, H., Duncanson, L., Hofton, M., Blair, J.B., Disney, M., Marselis, S., Kellner, J.R., Fatoyinbo, L., Dubayah, R. (2017). Bridging the gap between spaceborne, airborne and terrestrial lidar: The GEDI simulator. Silvilaser 2017, Blacksburg, Virginia, USA.

Marselis, S.M., Armston, J., Fitzpatrick, M., Dubayah, R. (2017). Characterization of vegetation structure at the tropical forest-savanna ecotone in Gabon. Silvilaser 2017, Blacksburg, Virginia, USA. (poster presentation).

Tang, H., Armston, J., Hancock, S., Marselis, S., Duncanson, L., Kellner, J., Jantz, P., Goetz, S., Hofton, M., Blair, B., Fatoyinbo, L., Dubayah, R. (2017). Pre-launch testing of GEDI canopy cover and vertical profile data product algorithms in African tropical rainforests. Silvilaser 2017, Blacksburg, Virginia, USA.

Other

Duncanson, L, Armston, J., Hancock, S., Dubayah, R & the GEDI Science Team. (2017). Global biomass modeling with GEDI waveform Lidar. Invited special session presentation at the Brazilian Remote Sensing Symposium, Santos, Brazil.

2016
AGU Fall Meeting, San Francisco, CA
Armston, J., Tang, H., Hancock, S., Hofton, M.A., Dubayah, R., Duncanson, L., Fatoyinbo, L., Blair, J.B., Disney, M., (2016), Integration of ALS and TLS for calibration and validation of LAI profiles from large footprint lidar (Invited). AGU fall meeting 2016, San Francisco, USA. B54B-04.

Dubayah, R. (2016). The Global Ecosystem Dynamics Investigation: Current Status. AGU fall meeting 2016, San Francisco, USA. B34A-03.

Duncanson, L., Hancock, S., Marselis, S.M., Armston, J., Kellner, J.R., Tang, H., Fatoyinbo, L., Dubayah, R., (2016). Aboveground Biomass Estimation from Simulated GEDI Waveforms: First Results from Africa. AGU fall meeting 2016, San Francisco, USA. B44C-06.

Fisher, J.B., Stavros, E.N., Pavlick, R., Hook, S.J., Eldering, A., Dubayah, R., Schimel, D., (2016). The International Space Station as a Key Platform to Synergize Observations of Fundamental Ecosystem Properties (Invited). AGU fall meeting 2016, San Francisco, USA. B32C-01.

Goetz, S., Dubayah, R., (2016). The Potential of Spaceborne Remote Sensing for Deriving Canopy Structure Metrics and Informing Biodiversity and Habitat Mapping (Invited). AGU fall meeting 2016, San Francisco, USA. B34A-01.

Hancock, S., Tang, H., Blair, J.B., Dubayah, R., Armston, J., Sun, X., Hofton, M.A., Duncanson, L., Kellner, J.R., Marselis, S.M., (2016). Assessing the performance of the GEDI spaceborne lidar instrument using a waveform lidar simulator. AGU fall meeting 2016, San Francisco, USA. B31E-0524.

Kellner, J., Blair, J.B., Duncanson, L., Hancock, S., Hofton, M.A., Hughes, M., Marselis, S.M., Armston, J., Sudderth, E.B., Tang, H., Weiner, L, Dubayah, R., (2016). Associations between aboveground forest biomass and waveform LiDAR metrics: implications for modeling footprint-level biomass using Global Ecosystem Dynamics Investigation data. AGU fall meeting 2016, San Francisco, USA. B34A-07.

Marselis, S.M., Armston, J.D., Dubayah, R., Kelner, J., Duncanson, L., Hancock, S., Tang, H. (2016). The impact of ground plot edge-effects on empirical relationships between footprint-level biomass and GEDI waveform lidar metrics (poster). AGU fall meeting 2016, San Francisco, USA. B31E-0521.

Patterson, P.L., Healey, S.P., Ståhl, G., Holm, S., Magnusson, S., Dubayah, R., Hancock, S., Duncanson, L., Andersen, H., (2016). Simulation Study Based Analysis of the Statistical Properties of Biomass Estimators that use a Sample of GEDI Lidar Measurements. AGU fall meeting 2016, San Francisco, USA. B31E-0523.

Qi, W., Dubayah, R., Lee, S., (2016). Improved TanDEM-X forest height estimation assisted by simulated GEDI lidar canopy height. AGU fall meeting 2016, San Francisco, USA. B51C-0419

Tang, H., Song, X., Armston, J., Hancock, S., Duncanson, L., Zhao, F.A., Schaaf, C., Strahler, A.H., Huang, C., Hansen, M., Goetz, S.J., Dubayah, R., (2016). An Assessment of Differences in Tree Cover Measurements between Landsat and Lidar-derived Products. AGU fall meeting 2016, San Francisco, USA. B31E-0526.

Science Team Meeting Summary

ForestSAT, Santiago, Chile

Duncanson, L., Dubayah, R., Armston, J., Hancock, S., Kellner, J., Marselis, S. (2016) GEDI Aboveground biomass model development: First Results (presentation). ForestSAT 2016, Santiago, Chile.

2015

AGU Fall Meeting, San Francisco, CA
Dubayah, R., (2015). Crowd-Sourced Calibration: The GEDI Strategy for Empirical Biomass Estimation Using Spaceborne Lidar (Invited).  AGU fall meeting 2015, San Francisco, USA. B51I-02.

Kellner, J., Dubayah, R., Luthcke, S.B., Hurtt, G.C., Swatantran, A., Goetz, S.J., Duncanson, L., Hofton, M.A., Blair, J.B., Huang, C., Hansen, M., Fatoyinbo, L., Tang, H., Healey, S.P., Marselis, S., Hancock, S., Gost, A., (2015). The conceptual and scientific motivation for the Global Ecosystem Dynamics Investigation (Invited). AGU fall meeting 2015, San Francisco, USA. B12C-05.

Other

Dubayah, R. (2015) Remote sensing of ecosystem structure and Dynamics: GLobal Ecosystem Dynamics Investigation (GEDI lidar). Keck Institute for Space Studies/Caltech (October 5,2015).

Patterson, P.L, Healey, S., (2015). Global ecosystem dynamics investigation (GEDI) LiDAR sampling strategy. New Directions in Inventory Techniques & Applications Forest Inventory & Analysis (FIA) Symposium 2015. PNW-GTR-931.

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