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Funded Research

Algorithm Refinement for the MODIS Bidirectional Reflectance/Albedo Product

Schaaf, Crystal: University of Massachusetts Boston (Project Lead)
Strahler, Alan: Boston University (Co-Investigator)
Erb, Angela: University of Massachusetts Boston (Participant)
Li, Zhan: Canadian Forest Service (Participant)
Wang, Zhuosen: NASA GSFC/University of Maryland (Participant)

Project Funding: 2004 - 2018

Funded by NASA

Abstract:
In support of our MODIS BRDF/Albedo product effort we have been participating in some limited field validation efforts. In particular we have deployed an albedometer at the tall tower in Park Falls and have collaborated with Jeff Morisette and Sebastien Garrigues (GSFC) to characterize the underlying canopy structure, canopy gaps, and LAI. We have also performed similar field work at the Bondville tower site (where the SURFRAD tower albedometer has been supplemented by a number of other tower based albedos to characterize the surface radiation structure). As a participant in the Baseline Surface Radiation Network (BSRN) radiation subgroup and the CEOS/WGCV/Land Product Validation Subgroup on Albedo, we are interested in increasing the number of tower validation sites (such as Ameriflux) that collect shortwave albedo and PAR to not only validate satellite products but also validate the surface radiation budgets incorporated in climate and biogeochemical models.

Publications:

Wang, Z., Schaaf, C. B., Sun, Q., Kim, J., Erb, A. M., Gao, F., Roman, M. O., Yang, Y., Petroy, S., Taylor, J. R., Masek, J. G., Morisette, J. T., Zhang, X., Papuga, S. A. 2017. Monitoring land surface albedo and vegetation dynamics using high spatial and temporal resolution synthetic time series from Landsat and the MODIS BRDF/NBAR/albedo product. International Journal of Applied Earth Observation and Geoinformation. 59, 104-117. DOI: 10.1016/j.jag.2017.03.008

2015 NASA Carbon Cycle & Ecosystems Joint Science Workshop Poster(s)

  • Utilizing Highly Portable Terrestrial Lidar to Improve Spatial and Temporal Resolution of Ecological Monitoring Efforts   --   (Ian Paynter, Edward Saenz, Francesco Peri, Crystal Schaaf, Angela Erb, Robert Chen, Jennifer Bowen, Alan Strahler, Zhan Li, Jan van Aardt, Jasmine Muir, Lola Fatoyinbo, Bruce Cook, Miguel Román, David Clark, Deborah Clark, Leo Campos, William Miranda)   [abstract]
  • Evaluation of the VIIRS daily BRDF, NBAR, and Albedo product as compared to the MODIS V006 daily BRDF, NBAR, and Albedo product and in situ measurements   --   (Yan Liu, Zhuosen Wang, Qingsong Sun, Crystal Schaaf, Miguel O. Román, Angela Erb)   [abstract]

More details may be found in the following project profile(s):