Abstract.
A
dataset
of
85
Lagrangian
surface
drifter
trajectories
covering
the
central
North
Sea
area
and
Skagerrak
from
2017–2021
17
deployments
is
presented.
The
data
have
been
quality
controlled,
uniformly
structured
assimilated
in
a
standard
NetCDF
format.
Using
appropriate
methods
presented
detail
here,
currents
were
calculated
position
gridded
current
maps
with
0.125°
spatial
resolution
derived.
present
for
first
time
mean
south-eastern
observations.
Tidal
energy
spectra
analyzed
separately
southern
northern
areas
Sea,
tidal
ellipses
to
determine
impact
on
currents.
Significant
differences
between
shallow
shelf
deeper
are
evident.
While
nearshore
dominated
by
currents,
such
as
register
high
residual
circulation
driven
density
gradients.
Measurements
using
Eulerian
approaches
remote
sensing
restricted
temporal
coverage,
particular,
capture
submesoscale
dynamics.
For
this
reason,
measurements,
large
extent,
provide
new
insights
complex
dynamics
Sea.
Exemplarily,
region
used
illustrate
ability
reconstructing
mesoscale
patterns
This
unique
entire
offers
further
analysis
possibilities
can
be
investigation
various
hydrodynamic
environmental
issues,
e.g.,
at
ocean
fronts,
determination
kinetic
eddy
propagation
pollutants
Research Square (Research Square),
Год журнала:
2024,
Номер
unknown
Опубликована: Июнь 4, 2024
Abstract
The
Marine
Protected
Area
Yaganes
(MPAY)
was
created
in
response
to
the
great
deterioration
that
has
been
suffering
ecosystems
due
environmental
crisis
is
affecting
our
planet,
with
aim
protect
key
ocean
habitats
and
species.
Located
at
southern
tip
of
South
America,
MPAY
home
a
wide
variety
marine
biodiversity
habitats,
which
makes
it
special
interest
for
conservation
subantarctic
environments.
For
first
time,
we
described
potential
trophic
interactions
within
MPAY,
emphasis
pelagic
realm.
We
applied
both
network-level
species-level
approach
characterise
structure
complexity
properties,
aiming
comprehend
dynamics
specific
roles
certain
species
food
web.
In
terms
complexity,
web
consists
127
658
predator-prey
interactions,
density
5.18
connectance
0.04.
Regarding
its
structure,
around
69%
occupied
intermediate
levels.
Keystone
Species
Index
(KSI),
highlighted
importance
some
such
as
Patagonian
toothfish
(Dissostichus
eleginoides),
amphipod
Themisto
gaudichaudii,
euphausiids
myctophids,
among
others,
Earth system science data,
Год журнала:
2024,
Номер
16(4), С. 2099 - 2112
Опубликована: Апрель 30, 2024
Abstract.
A
dataset
of
85
Lagrangian
surface
drifter
trajectories
covering
the
central
North
Sea
area
and
Skagerrak
from
2017–2021
17
deployments
is
presented.
The
data
have
been
quality-controlled,
uniformly
structured,
assimilated
in
a
standard
NetCDF
format
(https://doi.org/10.1594/PANGAEA.963166,
Meyerjürgens
et
al.,
2023a).
Using
appropriate
methods
presented
detail
here,
currents
were
calculated
position
data.
Based
on
deployment
Skagerrak,
it
demonstrated
that
measurements
can
be
converted
into
an
Eulerian
representation
by
calculating
mean
current
velocities.
Tidal
energy
spectra
analyzed
separately
for
southern
northern
areas
Sea,
tidal
ellipses
to
determine
impact
currents.
Significant
differences
between
shallow
shelf
deeper
are
evident.
While
nearshore
dominated
currents,
such
as
record
high
residual
circulation
driven
high-density
gradients.
Measurements
using
approaches
remote
sensing
restricted
temporal
spatial
coverage,
particular,
capture
fine-scale
dynamics.
For
this
reason,
measurements,
large
extent,
provide
new
insights
complex
submesoscale
dynamics
Sea.
Exemplarily,
region
used
demonstrate
high-resolution
observations
both
mesoscale
small-scale
patterns.
This
unique
dataset,
entire
southeastern
offers
further
analysis
possibilities
investigation
various
hydrodynamic
environmental
issues,
e.g.,
at
ocean
fronts,
determination
kinetic
eddy
energy,
propagation
pollutants
