Science Advances,
Journal Year:
2022,
Volume and Issue:
8(26)
Published: June 29, 2022
An
accurate
record
of
preindustrial
(pre-1900
CE)
sea
level
is
necessary
to
contextualize
modern
global
mean
(GMSL)
rise
with
respect
natural
variability.
Precisely
dated
phreatic
overgrowths
on
speleothems
(POS)
provide
detailed
rates
Late
Holocene
sea-level
in
Mallorca.
Statistical
analysis
indicates
that
rose
locally
by
0.12
0.31
m
(95%
confidence)
from
3.26
2.84
thousand
years
(ka)
ago
(2σ)
and
remained
within
0.08
levels
ka
1900
CE.
This
history
consistent
glacial
isostatic
adjustment
models
adopting
relatively
weak
upper
mantle
viscosities
~1020
Pa
s.
There
virtual
certainty
(>0.999
probability)
the
average
GMSL
since
CE
has
exceeded
even
high
rate
between
inferred
POS
record.
We
conclude
anomalous
relative
any
variability
ice
volumes
over
past
4000
years.
Quaternary Science Reviews,
Journal Year:
2019,
Volume and Issue:
220, P. 359 - 371
Published: Aug. 20, 2019
Determining
the
rates,
mechanisms,
and
geographic
variability
of
relative
sea-level
(RSL)
change
following
Last
Glacial
Maximum
(LGM)
provides
insight
into
sensitivity
ice
sheets
to
climate
change,
response
solid
Earth
gravity
field
ice-mass
redistribution,
constrains
statistical
physical
models
used
project
future
rise.
To
do
so
in
a
scientifically
robust
way
requires
standardized
datasets
that
enable
broad
spatial
comparisons
minimize
bias.
As
part
larger
goal
develop
unified,
spatially-comprehensive
post-LGM
global
RSL
database,
this
special
issue
we
provide
synthesis
regional
data
resulted
from
first
‘Geographic
HOLocene
SEA
level
(HOLSEA)’
meetings
Mt
Hood,
Oregon
(2016)
St
Lucia,
South
Africa
(2017).
The
HOLSEA
brought
together
researchers
agree
upon
consistent
protocol
standardize,
interpret,
incorporate
realistic
uncertainties
data.
This
ten
geographical
regions
including
new
databases
Atlantic
Europe
Russian
Arctic
revised/expanded
Canada,
British
Isles,
Netherlands,
western
Mediterranean,
Adriatic,
Israel,
Peninsular
Malaysia,
Southeast
Asia,
Indian
Ocean.
In
total,
database
derived
includes
5634
(5290
validated)
index
(n
=
3202)
limiting
points
2088)
span
∼20,000
years
ago
present.
Progress
improving
standardization
has
also
been
accompanied
by
advancements
analytical
methods
infer
patterns
rates
geological
have
spatially
temporally
sparse
distribution
geochronological
elevational
uncertainties.
marks
inception
database.
Annual Review of Environment and Resources,
Journal Year:
2018,
Volume and Issue:
43(1), P. 481 - 521
Published: Aug. 3, 2018
Future
sea-level
rise
generates
hazards
for
coastal
populations,
economies,
infrastructure,
and
ecosystems
around
the
world.
The
projection
of
future
relies
on
an
accurate
understanding
mechanisms
driving
its
complex
spatio-temporal
evolution,
which
must
be
founded
history.
We
review
current
methodologies
data
sources
used
to
reconstruct
history
change
over
geological
(Pliocene,
Last
Interglacial,
Holocene)
instrumental
(tide-gauge
satellite
alimetry)
eras,
tools
project
spatial
temporal
evolution
sea
level.
summarize
level
near
(through
2050),
medium
(2100),
long
(post-2100)
terms.
Using
case
studies
from
Singapore
New
Jersey,
we
illustrate
ways
in
can
constrain
projections,
how
projections
motivate
development
new
research
questions
across
relevant
timescales.
Nature Communications,
Journal Year:
2022,
Volume and Issue:
13(1)
Published: Sept. 10, 2022
The
origin
of
the
temperature
divergence
between
Holocene
proxy
reconstructions
and
model
simulations
remains
controversial,
but
it
possibly
results
from
potential
biases
in
seasonality
or
climate
sensitivity
models.
Here
we
present
an
extensive
dataset
seasonal
temperatures
reconstructed
using
1310
pollen
records
covering
Northern
Hemisphere
landmass.
Our
indicate
that
both
summer
winter
warmed
early
to
mid-Holocene
(~11-7
ka
BP)
then
cooled
thereafter,
with
significant
spatial
variability.
Strong
warming
trend
occurred
mainly
Europe,
eastern
North
America
northern
Asia,
which
can
be
generally
captured
by
is
likely
associated
retreat
continental
ice
sheets.
subsequent
cooling
pervasively
recorded
except
for
Asia
southeastern
America,
may
reflect
cross-seasonal
impact
decreasing
insolation
through
climatic
feedbacks,
season
not
well
reproduced
challenge
proposal
proxies
are
main
model-data
discrepancies
highlight
critical
feedbacks
on
changes,
warrant
closer
attention
future
modelling.
Natural hazards and earth system sciences,
Journal Year:
2021,
Volume and Issue:
21(8), P. 2643 - 2678
Published: Sept. 1, 2021
Abstract.
The
city
of
Venice
and
the
surrounding
lagoonal
ecosystem
are
highly
vulnerable
to
variations
in
relative
sea
level.
In
past
∼150
years,
this
was
characterized
by
an
average
rate
sea-level
rise
about
2.5
mm/year
resulting
from
combined
contributions
vertical
land
movement
rise.
This
literature
review
reassesses
synthesizes
progress
achieved
quantification,
understanding
prediction
individual
local
level,
with
a
focus
on
most
recent
studies.
Subsidence
contributed
half
historical
Venice.
current
best
estimate
during
observational
period
1872
2019
based
tide-gauge
data
after
removal
subsidence
effects
is
1.23
±
0.13
mm/year.
A
higher
–
but
more
uncertain
observed
for
years.
Between
1993
2019,
change
+2.76
1.75
estimated
subsidence.
Unfortunately,
satellite
altimetry
does
not
provide
reliable
within
Lagoon.
Local
changes
closely
depend
Adriatic
Sea,
which
turn
linked
Mediterranean
Sea.
Water
mass
exchange
through
Strait
Gibraltar
its
drivers
currently
constitute
source
substantial
uncertainty
estimating
future
deviations
mean
trend
global-mean
value.
Regional
atmospheric
oceanic
processes
will
likely
contribute
significant
interannual
interdecadal
variability
Venetian
level
magnitude
comparable
that
past.
On
basis
regional
projections
affecting
trends
Venice,
range
atmospherically
corrected
2100
ranges
between
32
62
cm
RCP2.6
scenario
58
110
RCP8.5
scenario,
respectively.
plausible
unlikely
high-end
strong
ice-sheet
melting
yields
180
2100.
Projections
human-induced
motions
available,
evidence
demonstrates
they
have
potential
produce
contribution
exacerbating
hazard
posed
climatically
induced
changes.
Nature Geoscience,
Journal Year:
2024,
Volume and Issue:
17(7), P. 705 - 710
Published: July 1, 2024
Abstract
Earth’s
spin
axis
slowly
moves
relative
to
the
crust
over
time.
A
120-year-long
record
of
this
polar
motion
from
astronomical
and
more
modern
geodetic
measurements
displays
interannual
multidecadal
fluctuations
20
40
milliarcseconds
superimposed
on
a
secular
trend
about
3
per
year.
is
thought
be
driven
by
various
surface
interior
processes,
but
how
these
processes
operate
interact
produce
observed
signal
remains
enigmatic.
Here
we
show
that
predictions
made
an
ensemble
physics-informed
neural
networks
trained
capture
geophysical
can
explain
main
features
motion.
We
find
glacial
isostatic
adjustment
mantle
convection
primarily
account
for
trend.
Mass
redistribution
surface—for
example,
ice
melting
global
changes
in
water
storage—yields
relatively
weak
explains
90%
variations.
also
core
contribute
both
motion,
either
due
variations
torque
at
core–mantle
boundary
or
dynamical
feedback
response
mass
changes.
Our
findings
provide
constraints
interactions
which
observations
are
rare
balance
past
century
suggest
operating
between
climate-related
dynamics.
Geoscientific model development,
Journal Year:
2019,
Volume and Issue:
12(12), P. 5055 - 5075
Published: Dec. 4, 2019
Abstract.
We
present
SELEN4
(SealEveL
EquatioN
solver),
an
open-source
program
written
in
Fortran
90
that
simulates
the
glacial
isostatic
adjustment
(GIA)
process
response
to
melting
of
Late
Pleistocene
ice
sheets.
Using
a
pseudo-spectral
approach
complemented
by
spatial
discretization
on
icosahedron-based
spherical
geodesic
grid,
solves
generalized
sea-level
equation
(SLE)
for
spherically
symmetric
Earth
with
linear
viscoelastic
rheology,
taking
migration
shorelines
and
rotational
feedback
sea
level
into
account.
The
is
gravitationally
topographically
self-consistent,
since
it
considers
gravitational
interactions
between
solid
Earth,
cryosphere,
oceans,
accounts
evolution
Earth's
topography
changes
level.
can
be
employed
study
broad
range
geophysical
effects
GIA,
including
past
relative
variations
induced
sheets,
time
paleogeography
ocean
function
Last
Glacial
Maximum,
history
variations,
present-day
geodetic
signals
observed
Global
Navigation
Satellite
Systems,
gravity
field
detected
satellite
missions
like
GRACE
(the
Gravity
Recovery
Climate
Experiment).
“GIA
fingerprints”
constitute
standard
output
SELEN4.
Along
source
code,
we
provide
supplementary
document
full
account
theory,
some
numerical
results
obtained
from
run,
user
guide.
Originally,
SELEN
was
conceived
Giorgio
Spada
(GS)
2005
as
tool
students
eager
learn
about
has
been
first
SLE
solver
made
available
community.
Nature Communications,
Journal Year:
2021,
Volume and Issue:
12(1)
Published: June 29, 2021
Abstract
Future
warming
in
the
Mediterranean
is
expected
to
significantly
exceed
global
values
with
unpredictable
implications
on
sea-level
rise
rates
coming
decades.
Here,
we
apply
an
empirical-Bayesian
spatio-temporal
statistical
model
a
dataset
of
401
index
points
from
central
and
western
reconstruct
change
for
past
10,000
years.
We
demonstrate
that
mean
industrial-era
have
been
faster
than
any
other
period
since
~4000
years
ago.
further
highlight
previously
unrecognized
variability
rates.
In
Common
Era,
this
correlates
occurrence
major
regional-scale
cooling/warming
episodes.
Our
data
show
stabilization
during
Late
Antique
Little
Ice
Age
cold
event,
which
interrupted
general
rising
trend
~0.45
mm
−1
characterized
episodes
Era.
By
contrast,
event
had
only
minor
regional
effects