@InProceedings{MacedoLoreKamp:2015:SiNuIm,
author = "Macedo, Carina Regina de and Lorenzzetti, Jo{\~a}o Ant{\^o}nio
and Kampel, Milton",
affiliation = "{} and {Instituto Nacional de Pesquisas Espaciais (INPE)} and
{Instituto Nacional de Pesquisas Espaciais (INPE)}",
title = "Simula{\c{c}}{\~a}o num{\'e}rica de imagens SAR da frente
termal de superf{\'{\i}}cie da Corrente do Brasil na Bacia de
Santos",
booktitle = "Anais...",
year = "2015",
editor = "Gherardi, Douglas Francisco Marcolino and Arag{\~a}o, Luiz
Eduardo Oliveira e Cruz de",
pages = "1738--1745",
organization = "Simp{\'o}sio Brasileiro de Sensoriamento Remoto, 17. (SBSR)",
publisher = "Instituto Nacional de Pesquisas Espaciais (INPE)",
address = "S{\~a}o Jos{\'e} dos Campos",
abstract = "Past publications have shown that Synthetic Aperture Radar, used
in combination with thermal images may overcome problems related
with extensive cloud cover, allowing a proper representation of
oceanic features, such as the Brazil Current (BC) front. However,
some SAR images of the Southeastern Brazilian Coast show no signs
of the surface signature of the BC front. In this work,
simulations were conducted using the Ocean SAR Image Numerical
Simulator Model - M4S, in order to understand the mechanisms which
allow the visualization of the BC thermal front in SAR images
depicting the offshore zone off Santos Basin. As a first step, an
ASAR/ENVISAT image (C-band, VV polarization) depicting the BC
thermal front at the area was acquired of the INPE base data. The
wind velocity field, which was used as a mandatory input file of
the M4S model, was generated based on a Cross-Calibrated
Multi-Platform (CCMP) product. Analysis comprised two simulations:
in the first one only the effects of the aerodynamic modulation on
the sigma zero values at the thermal front region was considered;
in the second the effects of both aerodynamic and hydrodynamic
modulations were considered. Results showed a good agreement
between real and simulated SAR image signatures when the
hydrodynamic (via surface currents divergence of -5x10-4 s-1 and
shear of -8x10-4 s-1) effects were considered, in combination with
the aerodynamic modulation, and when the relaxation rate was
reduced by 88%.",
conference-location = "Jo{\~a}o Pessoa",
conference-year = "25-29 abr. 2015",
isbn = "978-85-17-0076-8",
label = "328",
language = "pt",
organisation = "Instituto Nacional de Pesquisas Espaciais (INPE)",
ibi = "8JMKD3MGP6W34M/3JM499E",
url = "http://urlib.net/ibi/8JMKD3MGP6W34M/3JM499E",
targetfile = "p0328.pdf",
type = "Oceanografia",
urlaccessdate = "27 abr. 2024"
}