Nature Communications,
Journal Year:
2022,
Volume and Issue:
13(1)
Published: Aug. 25, 2022
Abstract
The
quality
of
lake
ice
is
uppermost
importance
for
safety
and
under-ice
ecology,
but
its
temporal
spatial
variability
largely
unknown.
Here
we
conducted
a
coordinated
sampling
campaign
across
the
Northern
Hemisphere
during
one
warmest
winters
since
1880
show
that
2020/2021
commonly
consisted
unstable
white
ice,
at
times
contributing
up
to
100%
total
thickness.
We
observed
increased
over
winter
season,
becoming
thickest
constituting
largest
proportion
layer
towards
end
cover
season
when
fatal
drownings
occur
most
often
light
limits
growth
reproduction
primary
producers.
attribute
dominance
before
ice-off
air
temperatures
varying
around
freezing
point,
condition
which
occurs
more
frequently
warmer
winters.
Thus,
under
continued
global
warming,
prevalence
likely
substantially
increase
critical
period
ice-off,
adjusted
used
equations
human
transmittance
through
ice.
Global Change Biology,
Journal Year:
2018,
Volume and Issue:
24(8), P. 3692 - 3714
Published: March 15, 2018
Northern
ecosystems
are
experiencing
some
of
the
most
dramatic
impacts
global
change
on
Earth.
Rising
temperatures,
hydrological
intensification,
changes
in
atmospheric
acid
deposition
and
associated
acidification
recovery,
vegetative
cover
resulting
fundamental
terrestrial–aquatic
biogeochemical
linkages.
The
effects
readily
observed
alterations
supply
dissolved
organic
matter
(DOM)—the
messenger
between
terrestrial
lake
ecosystems—with
potentially
profound
structure
function
lakes.
contain
substantial
stores
filter
or
funnel
DOM,
affecting
timing
magnitude
DOM
delivery
to
surface
waters.
This
is
processed
streams,
rivers,
lakes,
ultimately
shifting
its
composition,
stoichiometry,
bioavailability.
Here,
we
explore
potential
consequences
these
change-driven
for
food
webs
at
northern
latitudes.
Notably,
provide
evidence
that
increased
allochthonous
lakes
overwhelming
autochthonous
results
from
earlier
ice-out
a
longer
growing
season.
Furthermore,
assess
implications
this
shift
nutritional
quality
autotrophs
terms
their
fatty
toxin
production,
methylmercury
concentration,
therefore,
contaminant
transfer
through
web.
We
conclude
regions
leads
not
only
reduced
primary
productivity
but
also
nutritionally
poorer
webs,
with
discernible
trophic
web
fish
humans.
BioScience,
Journal Year:
2022,
Volume and Issue:
72(11), P. 1050 - 1061
Published: July 18, 2022
Abstract
Our
planet
is
being
subjected
to
unprecedented
climate
change,
with
far-reaching
social
and
ecological
repercussions.
Below
the
waterline,
aquatic
ecosystems
are
affected
by
multiple
climate-related
anthropogenic
stressors,
combined
effects
of
which
poorly
understood
rarely
appreciated
at
global
stage.
A
striking
consequence
change
on
that
many
experiencing
shorter
periods
ice
cover,
as
well
earlier
longer
summer
stratified
seasons,
often
result
in
a
cascade
environmental
consequences,
such
warmer
water
temperatures,
alterations
lake
mixing
levels,
declines
dissolved
oxygen,
increased
likelihood
cyanobacterial
algal
blooms,
loss
habitat
for
native
cold-water
fisheries.
The
repercussions
changing
include
impacts
freshwater
supplies,
quality,
biodiversity,
ecosystem
benefits
they
provide
society.
Journal of Geophysical Research Biogeosciences,
Journal Year:
2021,
Volume and Issue:
126(10)
Published: Sept. 20, 2021
Abstract
Long‐term
lake
ice
phenological
records
from
around
the
Northern
Hemisphere
provide
unique
sensitive
indicators
of
climatic
variations,
even
prior
to
existence
physical
meteorological
measurement
stations.
Here,
we
updated
phenology
for
60
lakes
with
time‐series
ranging
107–204
years
first
re‐assessment
Hemispheric
trends
since
2004
by
adding
15
additional
and
40
our
study.
We
found
that,
on
average,
ice‐on
was
11.0
days
later,
ice‐off
6.8
earlier,
duration
17.0
shorter
per
century
over
entire
record
each
lake.
Trends
in
were
six
times
faster
last
25‐year
period
(1992–2016)
than
previous
quarter
centuries.
More
extreme
events
recent
decades,
including
late
ice‐on,
early
ice‐off,
periods
cover,
or
no
cover
at
all,
contribute
increasing
rate
loss.
Reductions
greenhouse
gas
emissions
could
limit
increases
air
temperature
abate
losses
that
would
subsequently
ecological,
cultural,
socioeconomic
consequences,
such
as
increased
evaporation
rates,
warmer
water
temperatures,
degraded
quality,
formation
toxic
algal
blooms.
Journal of Remote Sensing,
Journal Year:
2024,
Volume and Issue:
4
Published: Jan. 1, 2024
Since
the
launch
of
Landsat
missions,
they
have
been
widely
employed
for
monitoring
water
environments.
However,
designed
revisiting
period
satellites
is
16
days,
leading
to
large
uncertainties
when
tracking
long-term
changes
in
environmental
parameters
characterized
by
high
spatiotemporal
dynamics.
Given
this
challenge,
comprehensive
assessments
global
distribution
cloud-free
observations
(NCOs)
obtained
from
missions
and
their
applications
environments
hydrology
are
currently
unavailable.
In
study,
we
utilized
>4.8
million
images
acquired
Landsat-5,
Landsat-7,
Landsat-8
quantify
analyze
variations
NCOs
on
a
scale.
Our
findings
indicate
that
while
demonstrate
substantial
spatial
temporal
heterogeneities,
provides
nearly
twice
as
many
mean
annual
(21.8
±
14.7
year
−1
)
compared
Landsat-7
(10.8
4.8
Landsat-5
(8.3
5.6
).
Moreover,
examined
how
overlap
area
adjacent
orbits
contributes
improving
NCOs,
noting
all
observation
areas
above
45°N
covered
overlapping
paths
east–west
direction.
Additionally,
conducted
an
analysis
potential
arising
obtaining
trends
various
parameters,
including
total
suspended
sediment
(TSS)
concentration,
level,
surface
temperature
(WST),
ice
cover
phenology.
The
results
revealed
uncertainty
quality
(i.e.,
TSS)
much
higher
than
hydrological
level
WST).
quantification
assessment
impact
parameter
estimations
contribute
enhancing
our
understanding
limitations
opportunities
associated
with
utilizing
data
studies.
