Advances in mapping woody plant canopies using the NASA MISR instrument on Terra

Mark Chopping, Lihong Su, Naushad Kollikkathara, Libertad Urena

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Red (672 nm) band reflectance estimates from the NASA Multi-angle Imaging Spectro-Radiometer (MISR) on the Earth Observing System Terra satellite were used to obtain maps of woody plant fractional crown cover, mean canopy height, and biomass for large parts of south-eastern Arizona and southern New Mexico (>200,000 km2). MISR red band bidirectional reflectance estimates in nine views mapped to a 250 m grid were used to adjust the Simple Geometric-optical Model (SGM) that is based on the principles of Boolean geometry first exploited in LiStrahler geometric-optical (GO) models. The soil-understory background signal was decoupled a priori by exploiting relationships with the nadir camera reflectance data and the kernel weights of the LiSparse-RossThin kernel-driven bidirectional reflectance distribution function (BRDF) model. Maps of fractional crown cover, mean canopy height, and biomass were produced via retrievals of the mean crown radius and shape parameters from inversion of the SGM using the Praxis algorithm. The mean absolute error in randomly sampled and filtered estimates of fractional crown cover, mean canopy height, and woody biomass was 0.10, 2.2 meters, and 4.5 tons acre-1 (10.1 Mg ha-1), with RMS errors of 0.12, 3.3 and 6.2 (14.0), and coefficients of determination (R2) of 0.78, 0.69, and 0.81, respectively, significant at the 0.01 level (N=576).

Original languageEnglish
Title of host publication2007 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2007
Pages2515-2518
Number of pages4
DOIs
StatePublished - 1 Dec 2007
Event2007 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2007 - Barcelona, Spain
Duration: 23 Jun 200728 Jun 2007

Publication series

NameInternational Geoscience and Remote Sensing Symposium (IGARSS)

Other

Other2007 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2007
CountrySpain
CityBarcelona
Period23/06/0728/06/07

Keywords

  • Biomass
  • Canopy structure
  • Forest
  • MISR

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    Chopping, M., Su, L., Kollikkathara, N., & Urena, L. (2007). Advances in mapping woody plant canopies using the NASA MISR instrument on Terra. In 2007 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2007 (pp. 2515-2518). [4423355] (International Geoscience and Remote Sensing Symposium (IGARSS)). https://doi.org/10.1109/IGARSS.2007.4423355