Abstract.
Global
precipitation
change
in
response
to
climate
is
closely
related
surface
temperature,
the
forcing
agent,
and
atmospheric
dry
energy
budget,
but
regional
more
complex.
In
this
study,
we
use
experiments
from
Precipitation
Driver
Response
Model
Intercomparison
Project
(PDRMIP)
wherein
carbon
dioxide,
sulfate
aerosols,
black
aerosols
are
perturbed
study
global
contrast
with
over
India.
The
warming
dioxide
increases
both
globally
regionally,
whereas
cooling
aerosol
leads
a
reduction
cases.
however,
decrease
increase
of
mechanism
increased
heating
driving
stronger
monsoon
circulation
low-level
winds.
This
intensification
Indian
is,
somewhat
surprisingly,
for
emissions
than
when
limited
those
Asian
region.
Overall,
our
presents
heterogeneity
responses
at
levels
potential
underlying
physical
processes
under
variety
forcings
that
would
be
useful
designing
further
model
higher
spatial
resolution.
Frontiers in Climate,
Journal Year:
2024,
Volume and Issue:
6
Published: April 23, 2024
The
limited
success
of
international
efforts
to
reduce
global
warming
at
levels
established
in
the
Paris
Agreement,
and
increasing
frequency
strength
climate
impacts,
highlight
urgent
need
adaptation,
particularly
developing
countries.
Unfortunately,
current
adaptation
initiatives
are
not
enough
counteract
observed
impacts
projected
risks
from
change
Latin
America
Caribbean
(LAC).
In
this
paper,
we
review
relevant
issues
that
have
capacity
transform
knowledge
parties’
ambitions
into
action
region.
Current
vulnerabilities
climatic
impact-drivers
LAC
diverse,
complex,
region-specific
their
effects
expected
be
exacerbated
by
change.
However,
advancement
regional
domestic
agendas
has
been
hindered
scientific
gaps,
political
support,
institutional
capacity,
financial,
technical,
human,
economic
limitations
common
many
Transforming
data
multidimensional
metrics
with
useful
thresholds
for
different
sectors
understanding
contribution
feasible
strategies
delayed
local
conundrums
such
as
lack
inclusive
governance,
availability,
equity,
justice,
transboundary
issues.
We
discuss
ways
move
forward
develop
resilient
development
actions
a
more
sustainable
future
LAC.
science
community
needs
strengthen
its
local,
national,
connections
decision/policymakers
society
establish
three-way
engagement
proposing
suitable
negotiations
vulnerability
associated
extremes,
variability
discussions
insights
presented
work
could
extrapolated
other
countries
Global
South.
Scientific Reports,
Journal Year:
2023,
Volume and Issue:
13(1)
Published: Aug. 25, 2023
Spatiotemporal
rainfall
trend
analysis
as
an
indicator
of
climatic
change
provides
critical
information
for
improved
water
resource
planning.
However,
the
spatiotemporal
changing
behavior
is
much
less
understood
in
a
tropical
monsoon-dominated
country
like
Bangladesh.
To
this
end,
research
aims
to
analyze
variations
period
1980-2020
over
Bangladesh
at
seasonal
and
monthly
scales
using
MAKESENS,
Pettitt
test,
innovative
analysis.
Multilayer
Perception
(MLP)
neural
network
was
used
predict
next
8
years'
changes
nationally
investigate
spatial
pattern
trends,
inverse
distance
weighting
model
adopted
within
ArcGIS
environment.
Results
show
that
mean
annual
2432.6
mm,
which
57.6%
recorded
from
July
August.
The
Mann-Kendall
test
reveals
77%
stations
are
declining,
23%
have
rising
rainfall.
More
than
80%
face
declining
November
March
There
82%
during
pre-monsoon,
75%
monsoon,
100%
post-monsoon.
A
significant
decline
identified
north-center
northern
part
southern
northwestern
portions
post-monsoon
season.
Predicted
by
MLP
till
2030
suggests
there
will
be
little
rain
February,
maximum
fluctuating
occur
2025
2027-2029.
ECMWF
ERA5
reanalysis
data
findings
suggested
patterns
may
been
driven
or
reducing
convective
precipitation
rates,
low
cloud
cover,
inadequate
vertically
integrated
moisture
divergence.
Given
shortage
resources
anticipated
rise
demand,
study's
some
implications
managing
Atmospheric chemistry and physics,
Journal Year:
2024,
Volume and Issue:
24(14), P. 8225 - 8242
Published: July 22, 2024
Abstract.
In
this
study,
trends
of
21st-century
ground-level
ozone
and
precursors
were
examined
across
South
America,
a
less-studied
region
where
trend
estimates
have
rarely
been
comprehensively
addressed.
Therefore,
we
provided
an
updated
regional
analysis
based
on
validated
surface
observations.
We
tested
the
hypothesis
that
recent
increasing
trends,
mostly
in
urban
environments,
resulted
from
intense
wildfires
driven
by
extreme
meteorological
events
impacting
cities
preexisting
volatile
organic
compound
(VOC)-limited
regimes
dominate.
applied
quantile
regression
method
monthly
anomalies
to
estimate
quantify
their
uncertainties
detect
change
points.
Additionally,
maximum
daily
8
h
average
(MDA8)
peak-season
metrics
used
assess
short-
long-term
exposure
levels,
respectively,
for
present
day
(2017–2021).
Our
results
showed
lower
levels
tropical
(Bogotá
Quito),
varying
between
39
43
nmol
mol−1
short-term
26
27
exposure.
contrast,
mixing
ratios
higher
extratropical
(Santiago
São
Paulo),
with
level
61
40
41
mol−1.
Santiago
(since
2017)
Paulo
2008)
exhibited
positive
0.6
0.3
yr−1,
very
high
certainty.
attributed
these
upward
or
no
evidence
variation,
such
as
Bogotá
Quito,
well-established
VOC-limited
regime.
However,
greater
increase
percentile
(≥
90th)
heat
waves
and,
case
southwestern
associated
events.
Geophysical Research Letters,
Journal Year:
2024,
Volume and Issue:
51(15)
Published: Aug. 1, 2024
Abstract
Climate
models
indicate
that
a
warmer
environment
will
increase
low‐level
moisture,
potentially
intensify
extreme
precipitation.
However,
its
impact
on
different
rainfall
types
remains
unclear.
Using
satellite
data,
we
examined
changes
in
light
(0‐95th
percentile,
≤5.28
mm
hr
−1
)
and
heavy
(95‐100th
>5.28
precipitation
the
tropics
from
1998
to
2019.
Our
findings
show
−9
±
2%
(23
2%)
change
(light)
rain
intensity
13
(−24
1%)
frequency.
These
link
sea
surface
temperatures,
increased
atmospheric
stability
water
vapor,
weakened
upward
velocity.
insights
shed
how
patterns
respond
changing
climate,
emphasizing
complexities
within
hydrological
cycle.
Earth s Future,
Journal Year:
2025,
Volume and Issue:
13(1)
Published: Jan. 1, 2025
Abstract
This
study
compared
the
future
global
climate
zones
based
on
four
radiative
forcings
ranging
from
low‐end
(SSP1‐2.6)
to
high‐end
(SSP5‐8.5)
using
Köppen‐Geiger
classification.
To
reduce
uncertainties
in
projected
precipitation
and
temperature,
multimodel
projections
comprising
25
general
circulation
models
(GCMs)
were
sourced
recent
Coupled
Model
Intercomparison
Project
phase
six
(CMIP6)
used
create
a
Multi‐Model
Ensemble.
The
changes
historical
CMIP6
simulations
divided
into
periods
considering
data
availability
(1954–1964;
1964–1974;
1974–1984;
1984–1994;
1994–2004;
2004–2014).
Furthermore,
zone
reproducibility
of
GCMs
was
with
reference
Global
Precipitation
Climatology
Centre
Climatic
Research
Unit
temperature.
seven
monthly
surface
temperature
under
main
SSP
scenarios.
Consequently,
variables
overestimated
data,
composition
less
complex.
While
discrepancies
1–2°C
may
not
drastically
alter
classifications,
precipitation‐based
classifications
are
significantly
impacted
by
observed
errors.
Thus,
it
is
crucial
recognize
that
despite
advancements
GCMs,
they
still
possess
limitations
accurately
predicting
“real”
changes.
simpler
across
continents,
tundra
ice
caps
expected
disappear.
highlights
potential
risks
projecting
varying
greenhouse
gas
concentration
levels,
stressing
importance
these
caution
given
inherent
GCMs.
Journal of Environmental & Earth Sciences,
Journal Year:
2025,
Volume and Issue:
7(1)
Published: Jan. 14, 2025
The
net
primary
productivity
of
vegetation
(NPP)
is
an
important
index
to
evaluate
the
carbon
sequestration
capacity
and
land
use
change.
Using
MOD17N3HGF
NPP
data,
climate
data
night-time
light
from
2000
2020,
this
study
explored
relationship
between
urban
expansion,
change
in
Southern
Part
Taihang
Mountain
through
brightness
gradient
method,
trend
analysis,
partial
correlation
analysis
contribution
analysis.
It
aims
provide
information
support
for
rural
planning
ecological
management
region.
Key
findings
include:
Over
past
20
years,
mountain
areas
has
shown
overall
fluctuating
upward
trend,
with
"N"
pattern
related
altitude.
human
activity
area
expanded
by
9.9%,
expansion
highly
active
holding
back
growth
moderately
contributing
it.
gradually
warming
wetting,
precipitation
strong,
while
temperature
weak.
Compared
activities
(19.9%),
was
main
driver
change,
significantly
up
79.5%.
In
quality
south
region
improved
actively
responded
but
have
led
spatial
temporal
differences.
Geophysical Research Letters,
Journal Year:
2025,
Volume and Issue:
52(4)
Published: Feb. 19, 2025
Abstract
Ocean
evaporation
(
E
o
)
is
the
major
source
of
atmospheric
water
vapor
and
precipitation.
While
it
widely
recognized
that
may
increase
in
a
warming
climate,
recent
studies
have
reported
diminished
global
since
∼2000s,
raising
doubts
about
changes
.
Using
satellite
observations,
here
we
show
while
strongly
increased
from
1988
to
2017,
upward
trend
reversed
late
2000s.
Since
then,
two‐thirds
ocean
experienced
weakened
evaporation,
leading
slight
decreasing
global‐averaged
during
2008–2017.
This
suggests
even
with
saturated
surface,
warmer
climate
does
not
always
result
evaporation.
The
reversal
primarily
attributed
wind
stilling,
which
likely
tied
Northern
Oscillation
Index
shifting
positive
negative
phases.
These
findings
offer
crucial
insights
into
diverse
responses
hydrological
cycle
change.
