@InProceedings{CassolAraMorCarShi:2019:PoAlDa,
author = "Cassol, Henrique Luis Godinho and Arag{\~a}o, Luiz Eduardo
Oliveira e Cruz de and Moraes, Elisabete Caria and Carreiras,
Jo{\~a}o Manuel de Brito and Shimabukuro, Yosio Edemir",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de
Pesquisas Espaciais (INPE)} and {University of Sheffield} and
{Instituto Nacional de Pesquisas Espaciais (INPE)}",
title = "Polarimetric Alos/Palsar-2 data for retrieving aboveground biomass
of secondary forest in the Brazilian Amazon",
booktitle = "Proceedings...",
year = "2019",
pages = "1773--1776",
organization = "International Geoscience and Remote Sensing Symposium (IGARSS)",
publisher = "IEEE",
keywords = "SAR, Amazon Forest, Polarimetry, Scattering Decomposition, Second
Growth.",
abstract = "Secondary forests (SFs) are one of the major carbon sink in the
Neotropics due to the rapid carbon assimilating in their
aboveground biomass (AGB). However, the accurate contribution of
the SFs to the carbon cycle is a great challenge because of the
uncertainty in AGB estimates. In this context, the main objective
of this work is to explore polarimetric Alos/Palsar-2 data from to
model AGB in the SFs of the Central Amazon, Amazonas State. Forest
inventory was conducted in 2014 with the measured of 23 field
plots. Multiple linear regression analysis was performed to select
the best model by corrected AICw and validated by leave-one-out
bootstrapping method. The best fitted model has six parameters and
explained 65% of the aboveground biomass variability. The
prediction error was calculated to be RMSEP = 8.8 ± 2.98 Mg.ha-1
(8.75%). The main polarimetric attributes in the model were those
direct related to multiple scattering mechanisms as the Shannon
Entropy and the volumetric mechanism of Bhattacharya
decomposition; and those related to increase in double-bounce as
the co-polarization ratio (VV/HH) resulted of soil-trunk
interactions. Such models are intended to improve accuracy for
mapping SFs AGB in often cloudy environments as in the Brazilian
Amazon.",
conference-location = "Yokohama, Japan",
conference-year = "28 July - 02 Aug.",
language = "en",
targetfile = "cassol_polarimetric.pdf",
urlaccessdate = "02 maio 2024"
}