Ecological Indicators,
Год журнала:
2023,
Номер
157, С. 111248 - 111248
Опубликована: Ноя. 18, 2023
Heatwaves
are
increasingly
frequent
and
severe,
prompting
international
research
concerns.
This
study
utilized
the
Visibility
Graph
to
construct
complex
networks
(CNs)
of
heatwaves
in
China.
From
a
CN
perspective,
we
analyzed
spatial
temporal
variability
hazard
patterns
heatwaves,
with
focus
on
their
reliability
advantages.
Our
findings
indicate
that
China
have
exhibited
consistent
overall
increasing
trend
since
1961,
more
significant
rise
observed
past
30
years.
Notably,
there
substantial
variations
changes
severity
experienced
different
regions
decades,
southern
experiencing
higher
hazards
compared
central
where
they
relatively
lower.
The
utilization
CNs
has
demonstrated
remarkable
advantages
anomaly
detection,
change
phase
delineation,
analysis
connections
between
meteorological
stations,
selection
representative
values.
And,
enable
incorporation
both
heatwave
zoning.
results
this
provide
new
methods
perspectives
for
researching
climate
extremes,
establish
solid
foundation
comprehensive
accurate
prevention
Weather and Climate Extremes,
Год журнала:
2023,
Номер
42, С. 100632 - 100632
Опубликована: Ноя. 22, 2023
Climate
change
is
exacerbating
the
occurrence
of
compound
droughts
and
heatwaves
(CDHWs),
which
pose
a
serious
threat
to
human
health
socio-economic
development.
Using
daily
maximum
temperature
(Tmax)
monthly
self-calibrating
Palmer
drought
severity
index
(sc-PDSI)
dataset,
The
evolution
patterns
CDHWs
wet-heatwave
events,
dominant
drivers
relative
contributions
in
drylands
humid
areas
from
1961
2020
were
compared
analyzed.
results
show
that
types
are
stronger
than
areas,
growth
rate
was
almost
twice
greater
multi-year
average
intensity
events
by
up
2.4
times.
Moreover,
has
increased
significantly
past
period
(1961–1990)
recent
warm
(1991–2020),
heatwave
threshold
about
5
°C.
In
most
drylands,
contribution
dominates,
whereas
does.
compounding
effects
may
exacerbate
regionally
pronounced
taking
into
account
optimal
lags.
study
findings
could
provide
scientific
technological
support
actively
address
global
climate
risks.
npj Climate and Atmospheric Science,
Год журнала:
2025,
Номер
8(1)
Опубликована: Янв. 6, 2025
More
frequent
and
intense
heatwave
events
(HWEs)
on
the
Tibetan
Plateau
(TP)
present
substantial
threats
to
ecological
hydrological
systems.
However,
understanding
changes
in
HWEs
TP
is
limited,
primarily
from
analyses
at
individual
stations
or
single
elements
(glaciers,
lakes).
Here,
using
refined
data,
we
quantify
magnitude
by
aggregating
multiple
indicators
into
a
comprehensive
index
explore
influence
of
environmental
factors
over
TP.
Our
findings
indicate
that
has
significantly
increased
since
21st
century,
especially
autumn.
From
1979–2000
2001–2022,
hotspots
migrated
toward
northwestern
TP,
whereas
regions
with
most
rapid
increase
shifted
opposite
direction.
During
inter-seasonal,
spring
winter,
migration
direction
changed
northwest
first
22
years
(1979–2000)
southeast
recent
(2001–2022).
We
also
find
downward
shortwave
radiation
plays
significant
role
spatial
stratified
heterogeneity
(SSH)
magnitude,
while
trend
temperature
dominant
SSH
magnitude.
Moreover,
elevation
correlated
variability.
The
elevation-dependence
become
more
pronounced
years,
high-heatwave
migrating
higher
elevations.
Furthermore,
difference
land
cover
type
can
affect
intensity
some
extent.
underscore
patterns
evolution
around
century
provide
scientific
basis
for
interaction
between
different
periods.
Advances in Climate Change Research,
Год журнала:
2024,
Номер
15(1), С. 148 - 157
Опубликована: Фев. 1, 2024
Heatwave
exposure
has
increased
dramatically
because
of
climate
warming
and
population
growth,
along
with
their
interactive
effects.
However,
effective
adaptation
measures
can
reduce
these
impacts.
Nonetheless,
the
dynamic
changes,
regional
inequality
in
adaptive
capacity
potential
contributions
to
reducing
future
remain
unclear.
This
study
quantifies
impact
underscores
variations
heatwave
magnitudes,
levels
China.
We
projected
using
air-conditioner
penetration,
factoring
cooling
requirements
individuals'
purchasing
power.
Utilising
gross
domestic
product
(GDP)
data
from
four
Shared
Socioeconomic
Pathways
(SSP1,
SSP2,
SSP3
SSP5)
daily
temperature
SSP-based
emission
scenarios
(SSP1-2.6,
SSP2-4.5,
SSP3-7.0
SSP5-8.5),
we
estimated
duration,
avoided
impacts
through
across
China
its
sub-regions.
Results
show
a
substantial
increase
duration
Southwest
Southern
China,
especially
under
SSP5-8.5
scenario,
projection
163.2
±
36.7
d
during
2081–2100.
Under
SSP3|SSP3-7.0
total
reaches
156.4
76.8
billion
person
per
year,
which
is
highest
among
all
23
times
greater
than
that
1986–2005
without
adaptation.
Upon
considering
measures,
noteworthy
reduction
observed,
SSP5|SSP5-8.5
scenarios,
reductions
(62.6±3.9)
%
(65.8±5.1)
%,
respectively,
compared
scenario
Remarkable
disparities
are
also
evident,
up
50%
different
regions.
The
implementation
environmentally
friendly
notably
address
change,
thereby
alleviating
profound
threats
posed
human
well-being.
International Journal of Climatology,
Год журнала:
2024,
Номер
unknown
Опубликована: Сен. 20, 2024
Abstract
In
the
context
of
global
warming,
frequency,
intensity,
and
duration
heatwave
events
have
markedly
increased,
bearing
profound
implications
for
both
natural
ecosystems
human
societies.
To
effectively
cope
with
this
challenge,
it
is
imperative
to
accurately
identify
comprehensively
assess
risks
posed
by
heatwaves.
This
study
undertakes
a
systematic
approach
robust
methodology
leveraging
diverse
array
data
sources—encompassing
remote
sensing,
statistical
analyses.
The
integrates
risk
triangle
theory
alongside
established
assessment
frameworks
laid
out
Intergovernmental
Panel
on
Climate
Change
(IPCC).
Employing
three‐dimensional
evaluation
framework
encompassing
hazard,
exposure,
vulnerability,
we
unravel
spatial–temporal
patterns,
high‐risk
zones,
dominant
dimensions
contributing
potential
disasters.
Results
indicated
that
during
1999–2008,
roughly
27%
areas
were
affected
high
above
levels
heatwaves,
very
vulnerability
accounted
approximately
19.5%,
10%,
32.5%,
respectively.
During
2009–2018,
proportion
risk,
exposure
increased
about
31%,
26%,
14%,
respectively,
while
percentage
decreased
24.43%.
Notably,
Xinjiang
western
part
Northwestern
China
are
characterized
hazard‐dominant
conditions,
Southern
China's
profile
has
shifted
from
1999–2008
2009–2018
hazard
conditions
more
complex
interaction
involving
vulnerability.
Moreover,
Northern
northern
segment
Southwestern
exhibit
simultaneous
rankings
across
dimensions,
forming
comprehensive
zone.
These
findings
characterize
patterns
offer
critical
insights
management
decisions,
guiding
effective
disaster
prevention
relief
measures
ensure
socio‐economic
stability
public
health.
