Water,
Journal Year:
2022,
Volume and Issue:
14(19), P. 3062 - 3062
Published: Sept. 28, 2022
Flooding
is
one
of
the
most
prevalent
types
natural
catastrophes,
and
it
can
cause
extensive
damage
to
infrastructure
environment.
The
primary
method
flood
risk
management
susceptibility
mapping
(FSM),
which
provides
a
quantitative
assessment
region’s
vulnerability
flooding.
objective
this
study
develop
new
ensemble
models
for
FSM
by
integrating
metaheuristic
algorithms,
such
as
genetic
algorithms
(GA),
particle
swarm
optimization
(PSO),
harmony
search
(HS),
with
decision
table
classifier
(DTB).
proposed
were
applied
in
province
Sulaymaniyah,
Iraq.
Sentinel-1
synthetic
aperture
radar
(SAR)
data
satellite
images
used
monitoring
(on
27
July
2019),
160
occurrence
locations
prepared
modeling.
For
training
validation
datasets,
coupled
1
flood-influencing
parameters
(slope,
altitude,
aspect,
plan
curvature,
distance
from
rivers,
land
cover,
geology,
topographic
wetness
index
(TWI),
stream
power
(SPI),
rainfall,
normalized
difference
vegetation
(NDVI)).
certainty
factor
(CF)
approach
was
determine
spatial
association
between
effective
floods,
resulting
weights
employed
modeling
inputs.
According
pairwise
consistency
technique,
NDVI
altitude
are
significant
factors
area
under
receiver
operating
characteristic
(AUROC)
curve
evaluate
accuracy
effectiveness
models.
DTB-GA
model
found
be
accurate
(AUC
=
0.889),
followed
DTB-PSO
0.844)
DTB-HS
0.812).
This
research’s
hybrid
provide
reliable
estimate
risk,
maps
early-warning
control
systems.
Geoscience Frontiers,
Journal Year:
2021,
Volume and Issue:
12(6), P. 101224 - 101224
Published: May 5, 2021
Bangladesh
experiences
frequent
hydro-climatic
disasters
such
as
flooding.
These
are
believed
to
be
associated
with
land
use
changes
and
climate
variability.
However,
identifying
the
factors
that
lead
flooding
is
challenging.
This
study
mapped
flood
susceptibility
in
northeast
region
of
using
Bayesian
regularization
back
propagation
(BRBP)
neural
network,
classification
regression
trees
(CART),
a
statistical
model
(STM)
evidence
belief
function
(EBF),
their
ensemble
models
(EMs)
for
three
time
periods
(2000,
2014,
2017).
The
accuracy
machine
learning
algorithms
(MLAs),
STM,
EMs
were
assessed
by
considering
area
under
curve—receiver
operating
characteristic
(AUC-ROC).
Evaluation
levels
aforementioned
revealed
EM4
(BRBP-CART-EBF)
outperformed
(AUC
>
90%)
standalone
other
analyzed.
Furthermore,
this
investigated
relationships
among
cover
change
(LCC),
population
growth
(PG),
road
density
(RD),
relative
(RCF)
areas
period
between
2000
2017.
results
showed
very
high
increased
19.72%
2017,
while
PG
rate
51.68%
over
same
period.
Pearson
correlation
coefficient
RCF
RD
was
calculated
0.496.
findings
highlight
significant
association
floods
causative
factors.
could
valuable
policymakers
resource
managers
they
can
improvements
management
reduction
damage
risks.
Water,
Journal Year:
2021,
Volume and Issue:
13(2), P. 241 - 241
Published: Jan. 19, 2021
Recurrent
floods
are
one
of
the
major
global
threats
among
people,
particularly
in
developing
countries
like
India,
as
this
nation
has
a
tropical
monsoon
type
climate.
Therefore,
flood
susceptibility
(FS)
mapping
is
indeed
necessary
to
overcome
natural
hazard
phenomena.
With
mind,
we
evaluated
prediction
performance
FS
Koiya
River
basin,
Eastern
India.
The
present
research
work
was
done
through
preparation
sophisticated
inventory
map;
eight
conditioning
variables
were
selected
based
on
topography
and
hydro-climatological
condition,
by
applying
novel
ensemble
approach
hyperpipes
(HP)
support
vector
regression
(SVR)
machine
learning
(ML)
algorithms.
HP-SVR
also
compared
with
stand-alone
ML
algorithms
HP
SVR.
In
relative
importance
variables,
distance
river
most
dominant
factor
for
occurrences
followed
rainfall,
land
use
cover
(LULC),
normalized
difference
vegetation
index
(NDVI).
validation
accuracy
assessment
maps
five
popular
statistical
methods.
result
evaluation
showed
that
optimal
model
(AUC
=
0.915,
sensitivity
0.932,
specificity
0.902,
0.928
Kappa
0.835)
assessment,
0.885)
SVR
0.871).
Geocarto International,
Journal Year:
2021,
Volume and Issue:
37(16), P. 4571 - 4593
Published: Feb. 19, 2021
The
research
aims
to
propose
the
new
ensemble
models
by
combining
machine
learning
techniques,
such
as
rotation
forest
(RF),
nearest
shrunken
centroids
(NSC),
k-nearest
neighbour
(KNN),
boosted
regression
tree
(BRT),
and
logitboost
(LB)
with
base
classifier
adabag
(AB)
for
flood
susceptibility
mapping
(FSM).
proposed
were
implemented
in
central
west
coast
of
India,
which
is
vulnerable
events.
For
inventory
mapping,
a
total
210
localities
identified.
Twelve
effective
factors
selected
using
boruta
algorithm
FSM.
area
under
receiver
operating
characteristics
(AUROC)
curve
other
statistical
measures
(sensitivity,
specificity,
accuracy,
kappa,
root
mean
square
error
(RMSE),
absolute
(MAE))
employed
estimate
compare
success
rate
approaches.
validation
results
individual
terms
AUC
value
AB
(92.74%)
>RF
(91.50%)
>BRT
(90.75%)
>LB
(89.07%)
>NSC
(88.97%)
>KNN
(83.88%),
whereas
showed
that
AB-RF
(94%)
was
highest
prediction
efficiency
followed
by,
AB-KNN
(93.33%),
AB-NSC
(93.02%),
AB-LB
(92.83%),
AB-BRT
(92.64%).
outcomes
established
more
appropriate
increase
accuracy
different
single
models.
Therefore,
this
study
can
be
useful
proper
planning
management
hazard
alike
geographic
environment.
Geomatics Natural Hazards and Risk,
Journal Year:
2023,
Volume and Issue:
14(1)
Published: May 4, 2023
This
study
aims
to
examine
three
machine
learning
(ML)
techniques,
namely
random
forest
(RF),
LightGBM,
and
CatBoost
for
flooding
susceptibility
maps
(FSMs)
in
the
Vietnamese
Vu
Gia-Thu
Bon
(VGTB).
The
results
of
ML
are
compared
with
those
rainfall-runoff
model,
different
training
dataset
sizes
utilized
performance
assessment.
Ten
independent
factors
assessed.
An
inventory
map
approximately
850
sites
is
based
on
several
post-flood
surveys.
randomly
split
between
(70%)
testing
(30%).
AUC-ROC
97.9%,
99.5%,
99.5%
CatBoost,
RF,
respectively.
FSMs
developed
by
methods
show
good
agreement
terms
an
extension
flood
inundation
using
model.
models'
showed
10–13%
total
area
be
highly
susceptible
flooding,
consistent
RRI's
map.
that
downstream
areas
(both
urbanized
agricultural)
under
high
very
levels
susceptibility.
Additionally,
input
datasets
tested
determine
least
number
data
points
having
acceptable
reliability.
demonstrate
can
realistically
predict
FSMs,
regardless
samples.
International Journal of Applied Earth Observation and Geoinformation,
Journal Year:
2023,
Volume and Issue:
122, P. 103401 - 103401
Published: July 14, 2023
Flash
floods
are
among
the
world
most
destructive
natural
disasters,
and
developing
optimum
hybrid
Machine
Learning
(ML)
models
for
flash
flood
susceptibility
(FFS)
modeling
remains
a
challenge.
This
study
proposed
novel
intelligence
algorithms
based
on
of
several
ensemble
ML
(i.e.,
Bagged
Flexible
Discriminant
Analysis
(BAFDA),
Extreme
Gradient
Boosting
(XBG),
Rotation
Forest
(ROF)
Boosted
Generalized
Additive
Model
(BGAM))
wrapper-based
factor
optimization
Recursive
Feature
Elimination
(RFE)
Boruta)
to
improve
accuracy
FFS
mapping
at
Neka-Haraz
watershed
in
Iran.
In
addition,
Random
Search
(RS)
method
is
meta-optimization
developed
hyper-parameters.
considers
20
conditioning
factors
(CgFs)
380
non-flood
locations
create
geospatial
database.
The
performance
each
model
was
evaluated
by
area
under
receiver
operating
characteristic
(ROC)
curve
(AUC)
validation
methods,
such
as
efficiency.
demonstrated
good
performance,
with
BGAM-Boruta
achieving
highest
(AUC
=
0.953,
Efficiency
0.910),
followed
ROF-Boruta
0.952),
ROF-RFE
0.951),
BAFDA-Boruta
0.950),
BGAM-RFE
ROF
0.949),
BGAM
0.948),
BAFDA-RFE
0.943),
XGB-Boruta
BAFDA
0.939),
XGB-RFE
0.938)
XGB
0.911).
model,
regional
coverage
about
46%
high
very
areas.
Moreover,
revealed
that
distance
river,
slope,
rainfall,
altitude,
road
CgFs
significant
this
region.
International Journal of Digital Earth,
Journal Year:
2024,
Volume and Issue:
17(1)
Published: Feb. 9, 2024
Floods
pose
devastating
effects
on
the
resiliency
of
human
and
natural
systems.
flood
risk
management
challenges
are
typically
complicated
in
transboundary
river
basin
due
to
conflicting
objectives
between
multiple
countries,
lack
systematic
approaches
data
monitoring
sharing,
limited
collaboration
developing
a
unified
system
for
hazard
prediction
communication.
An
open-source,
low-cost
modeling
framework
that
integrates
open-source
models
can
help
improve
our
understanding
susceptibility
inform
design
equitable
strategies.
This
study
datasets
machine
-learning
techniques
quantify
across
data-scare
basin.
The
analysis
focuses
Gandak
River
Basin,
spanning
China,
Nepal,
India,
where
damaging
recurring
floods
serious
concern.
is
assessed
using
four
widely
used
learning
techniques:
Long-Short-Term-Memory,
Random
Forest,
Artificial
Neural
Network,
Support
Vector
Machine.
Our
results
exhibit
improved
performance
Network
Machine
predicting
maps,
revealing
higher
vulnerability
southern
plains.
demonstrates
remote
sensing
prediction,
mapping,
environment.