@InProceedings{AmaralAGWMPS:2017:MoSpAb,
author = "Amaral, Cibele Hummel do and Arag{\~a}o, Luiz Eduardo Oliveira e
Cruz de and Galv{\~a}o, L{\^e}nio Soares and Wu, Jin and
memoriam, Thomas Hilker - In and Moura, Yhasmin Mendes de and
Prohaska, Neil and Saleska, Scott Reid",
affiliation = "{} and {Instituto Nacional de Pesquisas Espaciais (INPE)} and
{Instituto Nacional de Pesquisas Espaciais (INPE)} and {} and {}
and {Instituto Nacional de Pesquisas Espaciais (INPE)}",
title = "Monitoring the species-specific absorption of solar energy by
chlorophyll through near-surface imaging spectroscopy in central
eastern Amazon",
booktitle = "Anais...",
year = "2017",
editor = "Gherardi, Douglas Francisco Marcolino and Arag{\~a}o, Luiz
Eduardo Oliveira e Cruz de",
pages = "5620--5627",
organization = "Simp{\'o}sio Brasileiro de Sensoriamento Remoto, 18. (SBSR)",
publisher = "Instituto Nacional de Pesquisas Espaciais (INPE)",
address = "S{\~a}o Jos{\'e} dos Campos",
abstract = "The aim of this research was to monitor the amount of solar energy
absorbed by chlorophyll at branch scale during the dry season, in
a central eastern Amazonian evergreen forest, and verify how
broadband and narrowband vegetation indices, as well as canopy
fractions can be used for monitoring the absorption of energy by
chlorophyll at the species level. Seventeen hyperspectral images
(385-1050 nm, ~ 4 nm spectral resolution), which were acquired
from a tower-mounted camera (late July to late September, 2012),
were used in this study. Seven vegetation indices, three canopy
fractions (green vegetation, GV, non-photosynthetic vegetation,
NPV, and shade fractions), and the depth of the chlorophyll
absorption band, were calculated for three tree species in the
camera image: Chamaecrista xinguensis (CHXI), Erisma uncinatum
(ERUN) and Manilkara huberi (MAHU). Each individual (and species)
displays a distinct phenological behavior, and ERUN has the
highest values and the lowest variation of chlorophyll absorption
band depth during the studied period. Our results show that the
dry season changes in chlorophyll absorption band depth are not
correlated with the shade fraction; instead, it can be explained
by the dry season variations in GV and NPV, as well as by three
vegetation indices: Normalized Difference Vegetation Index (NDVI),
Enhanced Vegetation Index (EVI) and Plant Senescence Reflectance
Index (PSRI). Although NDVI and EVI are more consistent during the
time, only NDVI and PSRI are correlated with the absorption of the
electromagnetic energy by chlorophyll within the studied crowns
(and species).",
conference-location = "Santos",
conference-year = "28-31 maio 2017",
isbn = "978-85-17-00088-1",
label = "59332",
language = "en",
organisation = "Instituto Nacional de Pesquisas Espaciais (INPE)",
ibi = "8JMKD3MGP6W34M/3PSMBE3",
url = "http://urlib.net/ibi/8JMKD3MGP6W34M/3PSMBE3",
targetfile = "59332.pdf",
type = "Sensoriamento remoto hiperespectral",
urlaccessdate = "27 abr. 2024"
}