Environmental Research Letters,
Journal Year:
2024,
Volume and Issue:
19(7), P. 073003 - 073003
Published: June 3, 2024
Abstract
Flood
risk
in
urban
areas
will
increase
massively
under
future
urbanization
and
climate
change.
Urban
flood
models
have
been
increasingly
applied
to
assess
impacts
of
on
risk.
For
this
purpose,
different
methodological
approaches
developed
order
reflect
the
complexity
dynamics
growth.
To
state-of-the
art
application
scenarios,
we
conducted
a
structured
literature
review
systematically
analyzed
93
publications
with
141
case
studies.
Our
shows
that
hydrological
hydrodynamic
are
most
commonly
used
simulate
Future
is
mostly
considered
as
sprawl
through
adjustment
land
use
maps
roughness
parameters.
A
low
number
additionally
consider
transitions
structures
densification
processes
their
scenarios.
High-resolution
physically
based
advanced
well
suited
for
describing
quantifiable
data-rich
contexts.
In
regions
limited
data,
argue
reducing
level
detail
increasing
patterns
should
be
improve
quality
projections
urbanization.
also
call
development
integrative
model
such
causal
network
greater
explanatory
power
enable
processing
qualitative
data.
Hydrology,
Journal Year:
2025,
Volume and Issue:
12(2), P. 33 - 33
Published: Feb. 14, 2025
This
paper
presents
a
novel
methodology
to
generate
Digital
Elevation
Models
(DEMs)
in
flat
areas,
incorporating
river
channels
from
relatively
coarse
initial
data.
The
technique
primarily
utilizes
filtered
dense
point
clouds
derived
SfM-MVS
(Structure
Motion-Multi-View
Stereo)
photogrammetry
of
available
crewed
aerial
imagery
datasets.
operates
under
the
assumption
that
survey
was
carried
out
during
low-flow
or
drought
conditions
so
dry
(or
almost
dry)
riverbed
is
detected,
although
an
imprecise
way.
Direct
interpolation
detected
elevation
points
yields
unacceptable
channel
bottom
profiles
(often
exhibiting
unrealistic
artifacts)
and
even
distorts
floodplain.
In
our
Fluvial
Domain
Method,
bottoms
are
represented
like
“highways”,
perhaps
overlooking
their
(unknown)
detailed
morphology
but
gaining
general
topographic
consistency.
For
instance,
we
observed
11.7%
discrepancy
long
profile
(with
respect
measured
cross-sections)
0.38
m
RMSE
floodplain
GNSS-RTK
measurements).
Unlike
conventional
methods
utilize
active
sensors
(satellite
airborne
LiDAR)
classic
surveys—each
with
precision,
cost,
labor
limitations—the
proposed
approach
offers
more
accessible,
cost-effective,
flexible
solution
particularly
well
suited
cases
scarce
base
information
financial
resources.
However,
method’s
performance
inherently
limited
by
quality
input
data
simplification
complex
morphologies;
it
most
suitable
for
where
high-resolution
geomorphological
detail
not
critical
direct
acquisition
feasible.
resulting
DEM,
generalized
representation,
flood
hazard
modeling.
A
case
study
Ranchería
delta
Northern
Colombian
Caribbean
demonstrates
methodology.
American Journal of Applied Scientific Research,
Journal Year:
2025,
Volume and Issue:
11(1), P. 27 - 47
Published: Feb. 7, 2025
Integrated
infrastructure
planning
between
cities
is
a
strategic
approach
that
aligns
critical
systems
such
as
transportation
networks,
waste
management,
water
supply,
and
digital
connectivity
across
municipal
boundaries.
This
study
examines
the
coordinated
efforts
of
Addis
Ababa
Sheger
to
create
synergy
their
systems,
focusing
on
three
core
areas:
transport
road
sewerage
drainage
solid
management.
Effective
inter-city
collaboration
fosters
economic
growth,
environmental
sustainability,
social
equity
by
improving
connectivity,
resource
sharing,
resilience.
Conversely,
fragmented
often
results
in
urban
sprawl,
traffic
congestion,
poor
public
service
delivery,
degradation,
systemic
inefficiencies.
Using
mixed-methods
approach,
employed
convenience
sampling
collect
data
through
questionnaires,
surveys,
interviews,
focus
group
discussions.
It
processed
interpreted
using
analytical
tools
Microsoft
Excel,
ArcGIS,
SPSS.
The
findings
highlight
opportunities
enhance
efficiency
sustainability
shared
while
addressing
pressing
challenges,
institutional
silos,
limited
financial
resources,
inadequate
stakeholder
engagement.
underscored
importance
aligning
with
regional
development
goals,
emphasizing
strategies
reduce
redundancies
foster
sustainable
environments.
Key
recommendations
include
establishing
joint
bodies,
enhancing
data-sharing
mechanisms,
fostering
public-private
partnerships
optimize
use.
By
these
can
achieve
interconnected,
sustainable,
resilient
serve
broader
metropolitan
region
effectively.
contributes
discourse
providing
actionable
insights
into
how
collaboratively
address
challenges
supporting
objectives.
have
significant
implications
for
policymakers,
planners,
stakeholders
committed
advancing
cohesive
environments
benefit
communities
regions.
Journal of Hydrology Regional Studies,
Journal Year:
2022,
Volume and Issue:
44, P. 101247 - 101247
Published: Oct. 25, 2022
Licungo
basin
(Mozambique)
The
(23,263
km2)
suffers
frequent
severe
flooding
due
to
tropical
storms,
in
a
country
that
is
among
the
world's
most
vulnerable
terms
of
exposure
weather-related
hazards
and
climate
change.
We
propose
methodology
for
estimation
population
exposed
at
catchment
scale
data-scarce
regions,
combining
satellite
imagery
with
integrated
high-resolution
hydrological-hydraulic
modelling.
All
input
data
needed
are
retrieved
from
freely-available
global
products.
numerical
model
also
freeware.
therefore
replicable
worldwide.
An
estimate
flood
extent
during
Tropical
Storm
Ana
(January
2022)
presented
as
case
study.
Current
products
combination
models
can
be
used
whole
catchment.
This
more
realistic
than
one
obtained
using
alone,
since
images
very
rarely
taken
time
maximum
flooding.
Using
proposed
methodology,
we
over
273,000
people
(out
1.5
million)
were
Ana.
represents
18%
8
times
larger
only
available
images.
