Publications

Peer-reviewed publications

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).

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

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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