Weather and Climate Extremes,
Journal Year:
2023,
Volume and Issue:
40, P. 100563 - 100563
Published: April 21, 2023
The
potential
compounding
behaviour
of
heatwaves
and
extreme
rainfall
have
important
implications
for
a
range
hazards,
including
wildfires
flooding,
yet
remain
poorly
understood.
In
this
global
study,
we
analyse
the
likelihood
1-hr
immediately
following
heatwave,
identify
climate
zones
where
phenomenon
is
most
pronounced.
We
find
strongest
heatwave-extreme
relationships
in
central
Europe
Japan,
after
heatwave
increased
by
approximately
four
times
compared
to
climatology.
Significant
found
mainly
temperate
or
colder
climates,
provided
these
areas
receive
ample
moisture.
As
both
are
expected
become
more
frequent
future,
our
results
indicate
that
impacts
from
events
might
significantly
increase
as
well.
Ecohydrology,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 13, 2025
ABSTRACT
Under
the
backdrop
of
climate
warming,
outbreak
short‐term
extreme
heat
events
can
easily
lead
to
irreversible
changes
in
aquatic
ecosystems.
Delving
into
their
intrinsic
driving
mechanisms
and
nonlinear
characteristics
is
key
preventing
natural
disasters.
This
study,
focusing
on
upper
Yangtze
River
as
research
area,
constructs
a
joint
copula
function
model
analyze
occurrence
probability
return
period
meteorological
events.
Through
bivariate
cross–wavelet
transform
method,
study
explores
multiscale
dynamic
response
relationships
phase
meteorological–hydrothermal
River.
Furthermore,
multifractal
responses
for
was
established.
The
results
indicate
that
high‐heat
tend
occur
more
frequently
severely,
with
duration–kurtosis
likely
coincide
within
2‐year
period,
well
high‐intensity
low‐frequency
duration–severity
occurring
simultaneously.
Overall,
before
2005,
high‐hydrothermal
exhibited
lagging
behind
changes,
which
then
shifted
from
lag
lead.
three
scenarios
change,
exhibit
clear
relationship.
Apart
duration,
severity
kurtosis
all
show
significant
relationships.
npj Climate and Atmospheric Science,
Journal Year:
2025,
Volume and Issue:
8(1)
Published: Jan. 14, 2025
Under
climate
change,
China
faces
intensifying
compound
extreme
events
with
serious
socio-economic
ramifications,
yet
their
future
variations
remain
poorly
understood.
Here,
we
estimate
historical
hotspots
and
changes
of
two
typical
events,
i.e.,
sequential
heatwave
precipitation
(SHP)
concurrent
drought
(CDH)
across
China,
leveraging
a
bivariate
bias
correction
method
to
adjust
projections
from
global
models.
Results
show
substantial
increases
in
frequency,
duration,
magnitude
for
both
the
durations
projected
double
nationwide.
The
are
more
evident
under
higher
emission
scenarios,
could
be
largely
underestimated
if
neglecting
variable
dependence
during
process.
will
escalate
exposure
China's
major
urban
clusters,
among
which
Guangdong-Hong
Kong-Macao
face
highest
risk.
Our
findings
underscore
necessity
carbon
controls,
call
adaptive
measures
mitigate
threats
induced
by
rising
hazards
changing
climate.
Journal of Geophysical Research Atmospheres,
Journal Year:
2025,
Volume and Issue:
130(2)
Published: Jan. 16, 2025
Abstract
Heatwave
preconditioned‐heavy
rainfall
(HW_HR),
a
preconditioned
compound
event,
can
cause
more
damage
than
single
heatwave
or
rainstorm.
Both
heatwaves
and
rainstorms
be
exacerbated
by
the
presence
of
cities,
but
response
their
compounding
to
urbanization
remains
unclear
especially
at
hourly
scale.
Here,
we
investigate
spatial
temporal
responses
HW_HR
typical
urban
agglomeration,
Pearl
River
Delta,
using
observations
scenario‐based
numerical
simulations.
Compared
rural
areas,
show
that
in
areas
has
higher
probability
occurrence
mean
intensity,
its
diurnal
cycle
frequency
is
narrower,
peaking
afternoon.
The
intensity
effects
most
significant,
with
urbanization‐induced
increase
being
five
times
non‐heatwave
(noHW_HR).
Our
simulations
support
suggest
changes
are
intense
spatially
heterogeneous
relatively
weak
continuous
noHW_HR.
also
preconditioning
not
only
amplifies
key
variables
alter
atmospheric
conditions
provides
pre‐storm
unstable
environment
for
urban‐induced
warm‐dry
surface
trigger
enhance
convection.
sub‐daily
suggests
preconditioning‐induced
thermodynamic
gradually
decrease,
whereas
dynamic
as
event
approaches.
study
highlights
importance
understanding
on
events,
providing
new
insights
into
role
preconditions
water
cycle.
