Research Square (Research Square),
Journal Year:
2023,
Volume and Issue:
unknown
Published: June 19, 2023
Abstract
River
freshwater
fluxes
are
fundamental
inputs
for
regional
and
global
ocean
models.
Nonetheless,
most
models
currently
forced
by
climatological
runoff
data,
encompassing
several
limitations
resulting
in
significant
biases
the
simulated
conditions.
This
study
evaluates
daily
river
discharge
into
South
East
Asia
(SEA),
a
region
having
one
of
greatest
runoffs
world.
The
data
provided
at
1/10°
resolution
Global
Flood
Awareness
System
(GloFAS)
reanalysis
through
comparison
with
observed
records
climatology.
advantages
using
such
high
product
numerical
simulation
assessed
looking
its
impact
on
variability
distribution
sea
surface
salinity
(SSS),
mesoscale
processes
particles’
Lagrangian
dispersion
within
Indonesian
seas.
Our
results
show
satisfying
performance
GloFAS
major
rivers
China
Sea,
while
no
systematic
errors
were
identified
remaining
areas
interest.
Finally,
realistic
modeling
whole
SEA
region,
we
underline
importance
accurate
discharges
order
to
properly
reproduce
local
dynamics,
which
play
key
role
shaping
SSS
patterns
affect
stranding
marine
debris.
Marine
litter
poses
a
complex
challenge
in
Indonesia,
necessitating
well-informed
and
coordinated
strategy
for
effective
mitigation.
This
study
investigates
the
seasonality
of
plastic
concentrations
around
Sulawesi
Island
central
Indonesia
during
monsoon-driven
wet
dry
seasons.
By
using
open
data
methodologies
including
HYCOM
Parcels
models,
we
simulated
dispersal
waste
over
3
months
both
southwest
northeast
monsoons.
Our
research
extended
beyond
analysis,
as
actively
engaged
with
local
communities,
researchers
policymakers
through
range
outreach
initiatives,
development
web
application
to
visualize
model
results.
findings
underscore
substantial
influence
currents
on
surface
concentrations,
highlighting
seasonal
variation
risk
different
regional
seas.
adds
evidence
provided
by
coarser
resolution
ocean
modelling
studies,
emphasizing
that
is
key
driver
pollution
within
Indonesian
archipelago.
Inclusive
international
collaboration
community-oriented
approach
were
integral
our
project,
recommend
future
initiatives
similarly
engage
researchers,
communities
decision-makers
marine
aims
support
results
solutions
problem.
Marine
litter
poses
a
complex
challenge
in
Indonesia,
necessitating
well-informed
and
coordinated
strategy
for
effective
mitigation.
This
study
investigates
the
seasonality
of
plastic
concentrations
around
Sulawesi
Island
central
Indonesia
during
monsoon-driven
wet
dry
seasons.
By
using
open
data
methodologies
including
HYCOM
Parcels
models,
we
simulated
dispersal
waste
over
3
months
both
southwest
northeast
monsoons.
Our
research
extended
beyond
analysis,
as
actively
engaged
with
local
communities,
researchers
policymakers
through
range
outreach
initiatives,
development
web
application
to
visualize
model
results.
findings
underscore
substantial
influence
currents
on
surface
concentrations,
highlighting
seasonal
variation
risk
different
regional
seas.
adds
evidence
provided
by
coarser
resolution
ocean
modelling
studies,
emphasizing
that
is
key
driver
pollution
within
Indonesian
archipelago.
Inclusive
international
collaboration
community-oriented
approach
were
integral
our
project,
recommend
future
initiatives
similarly
engage
researchers,
communities
decision-makers
marine
aims
support
results
solutions
problem.
Journal of Marine Science and Engineering,
Journal Year:
2024,
Volume and Issue:
12(12), P. 2258 - 2258
Published: Dec. 9, 2024
Marine
debris
(MD)
causes
significant
threats
to
marine
ecosystems.
However,
limited
research
addresses
its
transport
of
MD
in
tropical
shallow
semi-enclosed
seas.
This
study
applied
a
validated
3D
hydrodynamic
model
and
particle
tracking
simulate
the
seasonal
distribution
floating
(FMD)
originating
from
major
river
mouths
vicinity
Gulf
Thailand
(GoT).
The
aim
was
examine
patterns
variations
influenced
by
sea
surface
circulation.
Simulated
particles
were
released
every
six
hours
12
tracked
over
three
years.
Results
revealed
that
currents
drive
between
eastern
western
regions,
as
well
export
import
across
gulf.
upper
(UGoT)
exhibited
highest
concentration
debris,
with
around
50%
total
ending
up
onshore
GoT,
varying
seasonally.
An
analysis
showed
74%
within
gulf
remains
there.
Additionally,
GoT
receives
approximately
10%
rivers
located
outside
boundaries.
Findings
this
suggest
an
example
sea,
functions
both
sink
source
for
FMD.
These
results
could
support
development
strategic
cleanup
frameworks,
optimizing
efforts
during
peak
accumulation
periods
enhance
management
efficiency.
In
addition,
mapping
provides
critical
data
assessing
mitigating
environmental
impacts
GoT.
Research Square (Research Square),
Journal Year:
2023,
Volume and Issue:
unknown
Published: June 19, 2023
Abstract
River
freshwater
fluxes
are
fundamental
inputs
for
regional
and
global
ocean
models.
Nonetheless,
most
models
currently
forced
by
climatological
runoff
data,
encompassing
several
limitations
resulting
in
significant
biases
the
simulated
conditions.
This
study
evaluates
daily
river
discharge
into
South
East
Asia
(SEA),
a
region
having
one
of
greatest
runoffs
world.
The
data
provided
at
1/10°
resolution
Global
Flood
Awareness
System
(GloFAS)
reanalysis
through
comparison
with
observed
records
climatology.
advantages
using
such
high
product
numerical
simulation
assessed
looking
its
impact
on
variability
distribution
sea
surface
salinity
(SSS),
mesoscale
processes
particles’
Lagrangian
dispersion
within
Indonesian
seas.
Our
results
show
satisfying
performance
GloFAS
major
rivers
China
Sea,
while
no
systematic
errors
were
identified
remaining
areas
interest.
Finally,
realistic
modeling
whole
SEA
region,
we
underline
importance
accurate
discharges
order
to
properly
reproduce
local
dynamics,
which
play
key
role
shaping
SSS
patterns
affect
stranding
marine
debris.
