@PhDThesis{Muņoz:2014:CoAnEx,
author = "Muņoz, Viviana Aguilar",
title = "Mapeamento de plan{\'{\i}}cies de inunda{\c{c}}{\~a}o a partir
de dados SRTM: contribui{\c{c}}{\~a}o para an{\'a}lise da
exposi{\c{c}}{\~a}o a inunda{\c{c}}{\~a}o na bacia do rio
itaja{\'{\i}}",
school = "Instituto Nacional de Pesquisas Espaciais (INPE)",
year = "2014",
address = "S{\~a}o Jos{\'e} dos Campos",
month = "2014-04-28",
keywords = "mapeamento de plan{\'{\i}}cies de inunda{\c{c}}{\~a}o,
geomorfometria, SRTM-MDE, exposi{\c{c}}{\~a}o a
inunda{\c{c}}{\~o}es, an{\'a}lise do terreno, floodplains
mapping, geomorphometry, SRTM-DEM, floods exposure, terrain
analysis.",
abstract = "Esta pesquisa apresenta a aplica{\c{c}}{\~a}o de dados de Modelo
Digital de Eleva{\c{c}}{\~a}o (MDE) da miss{\~a}o
\emph{Shuttle Radar Topography Mission }(SRTM) na
delimita{\c{c}}{\~a}o autom{\'a}tica de plan{\'{\i}}cies de
inunda{\c{c}}{\~a}o na bacia hidrogr{\'a}fica do rio
Itaja{\'{\i}}, Santa Catarina, que pode contribuir com
mapeamentos em escalas entre 1:100.000 e 1:250.000. Mostra-se o
processo de extra{\c{c}}{\~a}o de informa{\c{c}}{\~o}es
topogr{\'a}ficas de car{\'a}ter regional a partir desses dados e
o potencial da altura topogr{\'a}fica como indicadora de
plan{\'{\i}}cies de inunda{\c{c}}{\~a}o. Na falta de dados de
controle apropriados, foi necess{\'a}rio o desenvolvimento de uma
metodologia para a delimita{\c{c}}{\~a}o manual de
plan{\'{\i}}cies de inunda{\c{c}}{\~a}o pelo uso de recursos
dispon{\'{\i}}veis em Google Earth. A precis{\~a}o foi avaliada
por tabela de conting{\^e}ncia para dados dicot{\^o}micos (2x2)
para selecionar o limiar de fatiamento da altura topogr{\'a}fica
adequado {\`a} delimita{\c{c}}{\~a}o das plan{\'{\i}}cies e
para determinar a escala na qual melhor respondem os resultados. O
experimento mostrou que, na {\'a}rea de estudo, a altura pode ser
fatiada na faixa entre 8m e 13m e o ajuste entre o dado de
controle e o dado autom{\'a}tico se manteve constante e
independente da escala. Observou-se que as plan{\'{\i}}cies de
inunda{\c{c}}{\~a}o est{\~a}o distribu{\'{\i}}das em
v{\'a}rias faixas de eleva{\c{c}}{\~a}o. Foi conduzida uma
an{\'a}lise de lineamentos estruturais cujos resultados sugerem
origem tect{\^o}nica na cria{\c{c}}{\~a}o de espa{\c{c}}os de
acomoda{\c{c}}{\~a}o de sedimentos e, consequentemente, na
forma{\c{c}}{\~a}o das plan{\'{\i}}cies de
inunda{\c{c}}{\~a}o em v{\'a}rias faixas de altitude na bacia.
A partir de m{\'e}tricas da drenagem, foi analisado o potencial
de inunda{\c{c}}{\~a}o das sub-bacias, sem resultados
satisfat{\'o}rios. Por{\'e}m, a partir da an{\'a}lise da
distribui{\c{c}}{\~a}o dos solos e do perfil longitudinal do
canal principal das sub-bacias foi poss{\'{\i}}vel concluir que
a regi{\~a}o tem alto potencial de inunda{\c{c}}{\~a}o. Em
paralelo, foi analisada a distribui{\c{c}}{\~a}o territorial da
{\'a}rea constru{\'{\i}}da de cidades localizadas sobre as
plan{\'{\i}}cies de inunda{\c{c}}{\~a}o e pr{\'o}ximas ao
canal principal das sub-bacias para verificar seu grau de
exposi{\c{c}}{\~a}o a inunda{\c{c}}{\~o}es. Foi observado que
pelo menos 24 cidades da bacia do Itaja{\'{\i}} est{\~a}o
expostas a inunda{\c{c}}{\~o}es ou alagamentos em algum
n{\'{\i}}vel de gravidade, que n{\~a}o pode ser determinado no
escopo desta pesquisa. As observa{\c{c}}{\~o}es sugerem que
devem ser consideradas priorit{\'a}rias investiga{\c{c}}{\~o}es
mais detalhadas sobre exposi{\c{c}}{\~a}o a
inunda{\c{c}}{\~o}es em todas as 24 cidades, com destaque para
Rio do Sul, Apiuna, Blumenau, Itaja{\'{\i}} e Navegantes, devido
{\`a} maior {\'a}rea de contribui{\c{c}}{\~a}o nesses locais,
diretamente relacionada com maior volume de {\'a}gua e sedimento
potencialmente danoso para sua popula{\c{c}}{\~a}o. ABSTRACT:
This research shows the application of Shuttle Radar Topography
Mission model (SRTM) data for the automatic delineation of
floodplains in the Itaja{\'{\i}} river basin, Santa Catarina,
which can help mapping at scales between 1:100.000 and 1:250.000.
It is shown that the process of extracting topographic regional
information from DEM (Digital Elevation Model) and the potential
of the topographic height as an indicator of floodplains. In the
absence of appropriate control data, it was necessary to develop a
methodology for the manual delineation of floodplains by using
resources available on Google Earth. The accuracy was evaluated
through 2x2 contingency table for dichotomous data for both
selecting the appropriate threshold of the topographic height for
floodplain delimitation and determining the scale at which best
results are obtained. The experiment showed that, in the study
area, the topographic height could be sliced in the range between
8m and 13m and the fit between data control and automatic data
remained constant and scale-independent. It was observed the
floodplains are distributed in various ranges of elevation. An
analysis of structural lineaments was conducted and the results
suggest tectonic origin in the creation of accommodation spaces
for sediment inflow and subsequent formation of floodplains in
several elevation ranges within the basin. The sub-basin
inundation potential was evaluated through the analysis of
drainage metrics, without satisfactory results. In contrast, by
the analysis of the occurring soils and the distribution of the
main sub-basin longitudinal channel profile, it was possible to
conclude that the region has high flood potential. In parallel, we
analyzed the distribution of constructed area in cities located on
the floodplains and near to the main channel of the sub-basins, to
verify the exposure to floods. It was observed that at least 24
cities in the Itaja{\'{\i}} basin are exposed to floods or urban
floods in some level of severity, which cannot be determined in
the extent of this research. The observations suggest that more
priority should be given for detailed investigations of exposure
to flood events in all those 24 cities, especially to Rio do Sul,
Apiuna, Blumenau, Itaja{\'{\i}} and Navegantes, because of the
major contribution area related to these sites, which is directly
related to a higher volume of water and sediment potentially
harmful to its population.",
committee = "Rosseti, Dilce de F{\'a}tima (presidente) and Valeriano,
M{\'a}rcio de Morisson (orientador) and Florenzano, Teresa
Gallotti and Almeida, Cl{\'a}udia Maria de and Sim{\~o}es,
Silvio Jorge Coelho and Bohn, Noemia",
englishtitle = "Floodplains mapping from srtm data: contributions to floods
exposure analysis in river basin itaja{\'{\i}}",
language = "pt",
pages = "112",
ibi = "8JMKD3MGP5W34M/3G5LL8E",
url = "http://urlib.net/ibi/8JMKD3MGP5W34M/3G5LL8E",
targetfile = "publicacao.pdf",
urlaccessdate = "27 abr. 2024"
}