@Article{NobreCuMoSePiNo:2016:NePrPr,
author = "Nobre, Antonio Donato and Cuartas, Luz Adriana and Momo, Marcos
Rodrigo and Severo, Dirceu Lu{\'{\i}}s and Pinheiro, Adilson and
Nobre, Carlos Afonso",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas da Amaz{\^o}nia (INPA)} and
{Funda{\c{c}}{\~a}o Universidade Regional de Blumenau} and
{Funda{\c{c}}{\~a}o Universidade Regional de Blumenau} and
{Funda{\c{c}}{\~a}o Universidade Regional de Blumenau} and
{Centro Nacional de Monitoramento e Alerta de Desastres Naturais
(CEMADEN)}",
title = "HAND contour: a new proxy predictor of inundation extent",
journal = "Hydrological Processes",
year = "2016",
volume = "30",
pages = "320--333",
month = "Jan.",
keywords = "flood-extent prediction, inundation mapping, terrain model, HAND
model, topographical contours.",
abstract = "Tools for accurately predicting environmental risks, such as the
location and spatial extent of potential inundation, are not
widely available. A dependence on calibration and a lack of
available flood data have prevented the widespread application of
existing hydrodynamic methods for predicting the extent of
inundation. We use the height above the nearest drainage (HAND)
terrain model to develop a simple static approach for mapping the
potential extent of inundation that does not depend on flood
observations and extends beyond methods for mapping low-lying
areas. While relying on the contour concept, the method utilizes
drainage-normalized topography and flowpaths to delineate the
relative vertical distances (drop) to the nearest river. The
HAND-delineated relative drop is an effective distributed
predictor of flood potential, which is directly related to the
river stage height. We validated the new HAND contour approach
using a flood event in Southern Brazil for which high-resolution
maps were available. The results indicated that the flood
hazard-mapping method accurately predicted the inundation extent
of the channel carrying the flood wave and the channels influenced
by flooding. For channels positioned outside of the flood-wave
area, the method overestimated the actual flood extent. As an
original static assessment of floodwaters across the landscape,
the HAND contour method could be used to map flood hazards in
areas with poor information and could promote the development of
new methods for predicting hydrological hazards.",
doi = "10.1002/hyp.10581",
url = "http://dx.doi.org/10.1002/hyp.10581",
issn = "0885-6087",
language = "en",
targetfile = "nobre_hand.pdf",
urlaccessdate = "04 maio 2024"
}