Coastal shoreline change assessments at global scales
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: March 15, 2024
Language: Английский
Satellite-derived sandy shoreline trends and interannual variability along the Atlantic coast of Europe
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: June 6, 2024
Abstract
Monitoring
sandy
shoreline
evolution
from
years
to
decades
is
critical
understand
the
past
and
predict
future
of
our
coasts.
Optical
satellite
imagery
can
now
infer
such
datasets
globally,
but
sometimes
with
large
uncertainties,
poor
spatial
resolution,
thus
debatable
outcomes.
Here
we
validate
analyse
satellite-derived-shoreline
positions
(1984–2021)
along
Atlantic
coast
Europe
using
a
moving-averaged
approach
based
on
coastline
characteristics,
indicating
conservative
uncertainties
long-term
trends
around
0.4
m/year
potential
bias
towards
accretion.
We
show
that
west-facing
open
coasts
are
more
prone
erosion,
whereas
relatively
closed
favor
accretion,
although
most
computed
fall
within
range
uncertainty.
Interannual
variability
influenced
by
regionally
dominant
atmospheric
climate
indices.
Quasi-straight
coastlines
typically
strongest
alongshore-uniform
links,
while
embayed
coastlines,
especially
those
not
exposed
wave
climate,
weaker
variable
correlation
Our
results
provide
continuum
between
previous
local-scale
studies,
emphasizing
necessity
further
reduce
satellite-derived
trend
uncertainties.
They
also
call
for
applications
relevant
averaging
inclusion
coastal
setting
parameters
unravel
forcing-response
spectrum
shorelines
globally.
Language: Английский
Characterization of Multi-Decadal Beach Changes in Cartagena Bay (Valparaíso, Chile) from Satellite Imagery
Remote Sensing,
Journal Year:
2024,
Volume and Issue:
16(13), P. 2360 - 2360
Published: June 27, 2024
Sandy
coastlines
are
very
dynamic
spaces
affected
by
a
variety
of
natural
and
human
factors.
In
Central
Chile,
changes
in
oceanographic
wave
conditions,
modes
inter-annual
climate
variability
such
as
El
Niño
Southern
Oscillation
(ENSO),
extreme
events
earthquakes
tsunamis
condition
the
beach
morphology.
At
same
time,
direct
actions
alter
arrival
sediments
to
coast
their
alongshore
distribution.
Despite
relevance
beaches
for
this
coastal
region
interesting
relationship
morphology
has
with
aforementioned
factors,
there
is
lack
robust
morphological
datasets
provide
deep
characterization
understanding
dynamism
Chilean
coast.
Based
on
information
provided
satellite-derived
shorelines
(SDSs)
defined
using
SHOREX
algorithm,
paper
characterizes
Playa
Grande
Cartagena
Bay
(Central
Chile)
during
period
1985–2019.
The
shoreline
position
data
analyzed
context
changing
transforming
elements,
allowing
better
according
multiple
drivers.
While
some
these
or
storms,
have
punctual
character,
patterns
vary
at
different
time
scales,
from
seasonal
multi-annual,
linked
phases
ENSO.
Its
effects
translated
into
erosion
accretion
conditioned
orientation
while
influenced
availability
sediment
system.
According
that,
conceptual
model
redistribution
proposed.
work
proves
high
utility
that
systematic
analysis
multi-decadal
SDS
obtained
images
acquired
optical
Landsat
Sentinel-2
offer
monitoring
dynamism.
Language: Английский
Distinct shoreline behaviour along storm‐dominated and geologically controlled coastal barriers
Earth Surface Processes and Landforms,
Journal Year:
2025,
Volume and Issue:
50(4)
Published: March 25, 2025
Abstract
Contemporary
shoreline
change
is
driven
by
a
complex
combination
of
factors,
and
as
such
often
highly
variable
along
the
coast.
While
differences
in
beach
morphology
can
explain
some
variability
change,
geological
constraints
imposed
coastal
geology
are
overlooked.
This
work
examines
influence
foreshore
configurations
with
varying
degrees
non‐dynamic
control,
which
analysed
hydrodynamic
forcing
to
investigate
seasonal
multiannual
evolution
five
barriers
Outer
Hebrides,
Western
Scotland.
These
characterised
strongly
geologically
constrained
exposed
storm‐dominated
wave
climate.
Due
temporal
interval
between
available
cloud‐free
Planet
Scope
images,
monthly
averaged
vegetation
lines
from
2016
2023
were
derived
satellite
imagery
position
indicator
using
an
automated
approach
validated
visual
inspection.
The
satellite‐derived
have
sub‐pixel
accuracy
root
mean
square
error
3
m.
Changes
statistically
correlated
extreme
storm
conditions,
both
water
levels
conditions.
However,
control
exerted
configuration
results
distinct
inter‐
intra‐site
behaviour,
lower
observed
barrier
sectors
fronted
rocky
foreshores,
compared
sediment‐rich
foreshores.
small
but
significant
accreting
trend
(mean
0.4
m/yr),
likely
representing
recovery
winter
storms
that
impacted
northern
European
coasts
2013
2015.
demonstrate
considering
controls
assessments
improves
understanding
barriers,
allowing
identify
storm‐driven
behaviour
according
degree
control.
Language: Английский
Beach-dune dynamics and coastal management along the North-Médoc coastline, southwest France: a decade of morphological change and erosion mitigation
Geomorphology,
Journal Year:
2025,
Volume and Issue:
unknown, P. 109758 - 109758
Published: May 1, 2025
Language: Английский
Climate controls on longshore sediment transport and coastal morphology adjacent to engineered inlets
Coastal Engineering,
Journal Year:
2024,
Volume and Issue:
unknown, P. 104617 - 104617
Published: Sept. 1, 2024
Language: Английский
Morphodynamic Response of Open and Embayed Beaches to Winter Conditions: Two Case Studies from the North Atlantic Iberian Coast
Journal of Marine Science and Engineering,
Journal Year:
2024,
Volume and Issue:
12(1), P. 168 - 168
Published: Jan. 15, 2024
The
morphological
responses
of
two
mesotidal
beaches
located
in
different
coastal
settings
(embayed
and
open
sandy
beaches)
on
the
northwestern
Iberian
coast
were
monitored
during
winter
2018/19.
offshore
wave
time
series
analysis
is
related
to
high-resolution
topo-bathymetric
measurements
explore
spatial-temporal
variability
at
monthly
seasonal
scales.
Both
locations
are
subjected
North
Atlantic
climate
which
exhibits
a
pronounced
seasonality.
Throughout
last
decade
(2010–2020),
significant
heights
reached
values
up
Hs~9
m
winters
Hs~6
summers.
On
average,
approximately
12
storms
occurred
annually
this
region.
results
clearly
reveal
divergent
sediment
transport
behaviors
upper
beach
intertidal
zone
for
each
location.
In
embayed
(Patos),
nearshore
governed
by
cross-shore
processes
between
berm
submerged
sandbar.
contrast,
(Mira)
showed
dynamic
exchanges
three-dimensional
morphologies
alternating
accumulation
erosion
zones.
Overall,
both
exhibited
an
erosional
trend
after
winter,
particularly
concerning
subaerial
volume/shoreline
retreat.
This
study
highlights
contrasting
morphodynamic
response
conditions,
integrating
Local
geological
environmental
factors,
as
well
management
strategies
applied,
will
influence
how
responds
events.
Monitoring
understanding
these
essential
effective
adaptation
changing
climate.
Language: Английский
Satellite-derived sandy shoreline trends and interannual variability along the Atlantic coast of Europe
Research Square (Research Square),
Journal Year:
2023,
Volume and Issue:
unknown
Published: Dec. 22, 2023
Abstract
Monitoring
sandy
shoreline
evolution
from
years
to
decades
is
critical
understand
the
past
and
predict
future
of
our
coasts.
Optical
satellite
imagery
can
now
infer
such
datasets
globally,
but
sometimes
with
large
uncertainties,
poor
spatial
resolution,
thus
debatable
outcomes.
Here
we
validate
analyse
satellite-derived-shoreline
positions
(1984-2021)
along
Atlantic
coast
Europe
using
a
moving-averaged
approach
based
on
distance
coastline
orientation.
We
show
that
west-facing
coasts
sheltered
are
more
prone
long-term
erosion
accretion,
respectively.
Interannual
variability
influenced
by
regionally
dominant
atmospheric
climate
indices,
coastlines
not
exposed
wave
showing
weaker
variable
correlation
indices.
Our
results
provide
continuum
between
previous
local-scale
studies
call
for
applications
relevant
averaging
inclusion
coastal
setting
parameters
unravel
forcing-response
spectrum
shorelines
globally.
Language: Английский