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Tropical forest biomass retrieval using P-band PolTomSAR data

Abstract : This paper investigates the ability of Polarimetric SAR Tomography (PolTomSAR), performed at P-band, to retrieve Above-Ground-Biomass (AGB) over dense tropical forests. PolTomSAR techniques allow an accurate estimation of the backscattered power distribution in the vertical direction. A first tomographic biomass estimator, relating AGB to the backscattered power in the higher part of the vegetation is analyzed through a Random-Volume-over-Ground (RVoG) analytical description of a forest profile. A PolTom-RVoG derivation of the power backscattered by the upper vegetation layer is performed as an integration of the reflectivity along the volume vertical structure. This integration is carried out over a domain fixed by TomSAR resolution and tree height, leading to a novel and accurate ABG estimator. The proposed techniques are applied to P-Band data acquired over the Paracou data site on French Guiana in 2009, in the frame of the European Space Agency (ESA) TropiSAR campaign.
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Conference papers
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https://hal.inrae.fr/hal-02605309
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Submitted on : Saturday, May 16, 2020 - 10:48:16 AM
Last modification on : Wednesday, November 3, 2021 - 8:02:03 AM

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  • HAL Id : hal-02605309, version 1
  • IRSTEA : PUB00052244

Citation

B.E. Chehade, Laurent Ferro-Famil, H.T.M. Dinh, T.L. Toan. Tropical forest biomass retrieval using P-band PolTomSAR data. 11th European Conference on Synthetic Aperture Radar (EUSAR), Jun 2016, Hamburg, Germany. pp.51-54. ⟨hal-02605309⟩

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