Use este identificador para citar ou linkar para este item: http://repositorio.inpa.gov.br/handle/123/3647
Título: Biomass estimation in a tropical wet forest using Fourier transforms of profiles from lidar or interferometric SAR
Autor(es): Treuhaft, R. N.
Gonçalves, F. G.
Drake, J. B.
Chapman, B. D.
dos Santos, J. R.
Dutra, L. V.
Paulo Maurício Lima de Alencastro Graça
Purcell, G. H.
Assunto: Sensoriamento remoto
biomassa florestal
floresta tropical
ISSN: 0094-8276
Revista: Geophysical Research Letters
Volume: 37
Resumo: Tropical forest biomass estimation based on the structure of the canopy is a burgeoning and crucial remote sensing capability for balancing terrestrial carbon budgets. This paper introduces a new approach to structural biomass estimation based on the Fourier transform of vertical profiles from lidar or interferometric SAR (InSAR). Airborne and field data were used from 28 tropical wet forest stands at La Selva Biological Station, Costa Rica, with average biomass of 229 Mg-ha(-1). RMS scatters of remote sensing biomass estimates about field measurements were 58.3 Mg-ha(-1), 21%, and 76.1 Mg-ha(-1), 26%, for lidar and InSAR, respectively. Using mean forest height, the RMS scatter was 97 Mg-ha(-1), approximate to 34% for both lidar and InSAR. The confidence that Fourier transforms are a significant improvement over height was >99% for lidar and approximate to 90% for InSAR. Lidar Fourier transforms determined the useful range of vertical wavelengths to be 14 m to 100 m. Citation: Treuhaft, R. N., F. G. Goncalves, J. B. Drake, B. D. Chapman, J. R. dos Santos, L. V. Dutra, P. M. L. A. Graca, and G. H. Purcell (2010), Biomass estimation in a tropical wet forest using Fourier transforms of profiles from lidar or interferometric SAR, Geophys. Res. Lett., 37, L23403, doi:10.1029/2010GL045608.
URI: http://repositorio.inpa.gov.br/handle/123/3647
ISSN: 0094-8276
DOI: https://dx.doi.org/10.1029/2010GL045608
Aparece nas coleções:Coordenação de Dinâmica Ambiental (CDAM)

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