Reviews of Geophysics,
Год журнала:
2024,
Номер
62(1)
Опубликована: Фев. 11, 2024
Abstract
Lake
thermal
dynamics
have
been
considerably
impacted
by
climate
change,
with
potential
adverse
effects
on
aquatic
ecosystems.
To
better
understand
the
impacts
of
future
change
lake
and
related
processes,
use
mathematical
models
is
essential.
In
this
study,
we
provide
a
comprehensive
review
water
temperature
modeling.
We
begin
discussing
physical
concepts
that
regulate
in
lakes,
which
serve
as
primer
for
description
process‐based
models.
then
an
overview
different
sources
observational
data,
including
situ
monitoring
satellite
Earth
observations,
used
field
classify
various
available,
discuss
model
performance,
commonly
performance
metrics
optimization
methods.
Finally,
analyze
emerging
modeling
approaches,
forecasting,
digital
twins,
combining
deep
learning,
evaluating
structural
differences
through
ensemble
modeling,
adapted
management,
coupling
This
aimed
at
diverse
group
professionals
working
fields
limnology
hydrology,
ecologists,
biologists,
physicists,
engineers,
remote
sensing
researchers
from
private
public
sectors
who
are
interested
understanding
its
applications.
Global Change Biology,
Год журнала:
2022,
Номер
28(16), С. 4861 - 4881
Опубликована: Май 25, 2022
Oxygen
availability
is
decreasing
in
many
lakes
and
reservoirs
worldwide,
raising
the
urgency
for
understanding
how
anoxia
(low
oxygen)
affects
coupled
biogeochemical
cycling,
which
has
major
implications
water
quality,
food
webs,
ecosystem
functioning.
Although
increasing
magnitude
prevalence
of
been
documented
freshwaters
globally,
challenges
disentangling
oxygen
temperature
responses
have
hindered
assessment
effects
on
carbon,
nitrogen,
phosphorus
concentrations,
stoichiometry
(chemical
ratios),
retention
freshwaters.
The
consequences
are
likely
severe
may
be
irreversible,
necessitating
ecosystem-scale
experimental
investigation
freshwater
availability.
To
address
this
gap,
we
devised
conducted
REDOX
(the
Reservoir
Ecosystem
Dynamic
Oxygenation
eXperiment),
an
unprecedented,
7-year
experiment
manipulated
modeled
bottom-water
(hypolimnetic)
at
whole-ecosystem
scale
a
eutrophic
reservoir.
Seven
years
data
reveal
that
significantly
increased
hypolimnetic
concentrations
altered
elemental
by
factors
2-5×
relative
to
oxic
periods.
Importantly,
prolonged
summer
nitrogen
export
from
reservoir
six-fold
changed
net
sink
source
organic
carbon
downstream.
While
low
thought
as
response
land
use
climate
change,
results
demonstrate
can
also
driver
changes
serve
intensifying
feedback
increases
downstream
waterbodies.
Consequently,
change
continue
increase
it
will
budgets
well
quality
Environmental Science & Technology,
Год журнала:
2023,
Номер
57(9), С. 4003 - 4013
Опубликована: Фев. 20, 2023
Phosphorus
(P)
precipitation
is
among
the
most
effective
treatments
to
mitigate
lake
eutrophication.
However,
after
a
period
of
high
effectiveness,
studies
have
shown
possible
re-eutrophication
and
return
harmful
algal
blooms.
While
such
abrupt
ecological
changes
were
attributed
internal
P
loading,
role
warming
its
potential
synergistic
effects
with
thus
far,
has
been
understudied.
Here,
in
eutrophic
central
Germany,
we
quantified
driving
mechanisms
cyanobacterial
blooms
2016
(30
years
first
precipitation).
A
process-based
ecosystem
model
(GOTM-WET)
was
established
using
high-frequency
monitoring
data
set
covering
contrasting
trophic
states.
Model
analyses
suggested
that
release
accounted
for
68%
biomass
proliferation,
while
contributed
32%,
including
direct
via
promoting
growth
(18%)
intensifying
loading
(14%).
The
further
showed
synergy
prolonged
hypolimnion
oxygen
depletion.
Our
study
unravels
substantial
re-eutrophicated
lakes.
on
cyanobacteria
need
more
attention
management,
particularly
urban
Hydrology and earth system sciences,
Год журнала:
2023,
Номер
27(3), С. 837 - 859
Опубликована: Фев. 16, 2023
Abstract.
Long-term
effects
of
climate
change
on
lakes
globally
will
include
a
substantial
modification
in
the
thermal
regime
and
oxygen
solubility
lakes,
resulting
alteration
ecosystem
processes,
habitats,
concentrations
critical
substances.
Recent
efforts
have
led
to
development
long-term
model
projections
lake
regimes
solubility.
However,
such
are
hardly
ever
confronted
with
observations
extending
over
multiple
decades.
Furthermore,
global-scale
forcing
parameters
models
present
several
limitations,
as
need
significant
downscaling.
In
this
study,
were
analyzed
four
largest
French
peri-alpine
1850–2100.
We
tested
one-dimensional
(1D)
models'
robustness
for
variations
based
up
63
years
limnological
data
collected
by
Observatory
LAkes
(OLA).
Here,
we
evaluate
possibility
mechanistic
following
evolution
shortwave
radiation
air
temperature
while
providing
realistic
seasonal
trends
other
variables
which
local-scale
downscaling
often
lacks
accuracy.
Based
approach,
MyLake,
forced
temperatures
radiations,
predicted
accurately
last
4
6
decades,
RMSE
<
1.95
∘C.
Over
previous
3
water
increased
0.46
∘C
per
decade
(±0.02
∘C)
epilimnion
0.33
(±0.06
hypolimnion.
Concomitantly
due
change,
O2
has
decreased
−0.104
mg
L−1
(±0.005
L−1)
−0.096
(±0.011
hypolimnion,
respectively.
shared
socio-economic
pathway
SSP370
Intergovernmental
Panel
Climate
Change
(IPCC),
could
face
an
increase
3.80
(±0.20
next
70
years,
accompanied
decline
1.0
(±0.1
Together,
these
results
highlight
conditions
coming
better
integration
observatories
anticipate
habitats.
Water Resources Research,
Год журнала:
2024,
Номер
60(1)
Опубликована: Янв. 1, 2024
Abstract
Benthic
oxygen
flux
with
complex
spatiotemporal
variations
is
essential
for
the
global
budget
of
carbon
dioxide
and
regional
security
water
quality
ecology,
but
its
dominant
driver
under
different
circumstances
has
yet
to
be
identified.
In
this
study,
a
parametric
scheme
was
proposed
validated
aquatic
eddy
correlation
measurements
then
coupled
diagenesis
model
environment
model.
The
applied
river‐reservoir
significant
environmental
gradients
in
hydrodynamics,
diagenesis,
hypoxia,
which
are
three
factors
that
competitively
drive
variation
benthic
flux.
results
indicate
hydrodynamics
dominate
riverine
thalweg
areas,
lacustrine
bank
hypoxia
shows
dominance
only
hypolimnetic
anoxic
area.
general,
river‐reservoirs,
followed
by
both
more
prominent
than
hypoxia.
If
operated
reservoir
experiences
wet
year,
tends
increase,
while
decreases.
divers
exhibit
similar
stable
systems
reservoirs,
becomes
exclusive
fluxes
systems.
Geoscientific model development,
Год журнала:
2022,
Номер
15(9), С. 3861 - 3878
Опубликована: Май 13, 2022
Abstract.
We
present
the
Water
Ecosystems
Tool
(WET)
–
a
new
generation
of
open-source,
highly
customizable
aquatic
ecosystem
model.
WET
is
completely
modularized
model
developed
in
syntax
Framework
for
Aquatic
Biogeochemical
Models
(FABM),
which
enables
coupling
to
multiple
physical
models
ranging
from
zero
three
dimensions,
and
based
on
FABM–PCLake
The
has
been
extensively
modularized,
empowering
users
with
flexibility
food
web
configurations,
incorporates
features
other
state-of-the-art
models,
options
nitrogen
fixation
vertical
migration.
With
structure,
flexible
customization
options,
suitable
wide
range
applications.
demonstrate
these
their
impacts
behavior
temperate
lake
calibration
was
previously
published
discuss
benefits
Lakes
emit
substantial
amounts
of
carbon
dioxide
(CO
2
)
into
the
atmosphere,
but
why
they
do
remains
debated.
The
long-standing
vision
lakes
as
solely
respirators
organic
matter
leaking
from
soils
has
been
challenged
by
evidence
that
inorganic
produced
weathering
catchment
bedrock
could
also
support
lake
CO
emissions.
How
inputs
ultimately
generate
outgassing
a
blind
spot.
We
develop
and
introduce
calcite
module
in
coupled
one-dimensional
physical-biogeochemical
model
we
use
to
simulate
cycle
large
Lake
Geneva
over
past
40
years.
mechanistically
demonstrate
how
so-far
neglected
process
precipitation
boosts
net
emissions
at
annual
scale.
Far
being
anecdotal,
show
explain
across
various
globally,
including
some
largest
world.
