Urbanization Enhances Shorter‐Duration Precipitation Intensity in the Yangtze River Delta Region
Journal of Geophysical Research Atmospheres,
Год журнала:
2025,
Номер
130(8)
Опубликована: Апрель 25, 2025
Abstract
Understanding
the
response
of
extreme
precipitation
events
under
urbanization
conditions
is
vital
for
mitigating
risk
urban
flooding.
Nevertheless,
previous
studies
assessing
impact
on
often
neglected
role
natural
climate
variations.
To
fill
this
gap,
study
aims
to
investigate
how
varying
durations
responds
urbanization,
accounting
We
classified
agglomeration
Yangtze
River
Delta
(YRD)
in
East
China
into
nine
distinct
groups
based
seasonal
patterns,
utilizing
structural
self‐organizing
maps
(SOM),
and
explored
relationship
between
with
Geographical
Detector
Model.
The
results
revealed
substantial
fluctuations
within
YRD,
showing
significant
spatial
variability
underscoring
importance
considering
variations
studies.
After
variations,
our
findings
unveiled
a
notable
urbanization‐induced
effect,
particularly
prominent
during
summer
autumn.
Additionally,
urbanization's
influence
demonstrated
time‐scaling
shorter‐duration
exhibiting
stronger
correlation
urbanization.
Furthermore,
interaction
elevation
surpassed
individual
factors,
intensifying
as
event
duration
decreased,
especially
less
than
3
days,
indicating
more
complex
mechanism
their
precipitation.
This
research
enhance
understanding
shapes
patterns.
These
are
crucial
planning
adaptation
strategies
address
risks
associated
heavy
areas.
Язык: Английский
Spatiotemporal Characteristics of Mesoscale Convective Systems in the Yangtze River Delta Urban Agglomeration and Their Response to Urbanization
Atmosphere,
Год журнала:
2025,
Номер
16(3), С. 245 - 245
Опубликована: Фев. 21, 2025
Mesoscale
convective
systems
(MCSs)
are
major
contributors
to
extreme
precipitation
in
urban
agglomerations,
exhibiting
complex
characteristics
influenced
by
large-scale
climate
variability
and
local
processes.
This
study
utilizes
a
high-resolution
MCS
database
spanning
from
2001
2020
investigate
the
spatiotemporal
variations
of
MCSs
Yangtze
River
Delta
(YRD)
agglomeration
assess
their
response
urbanization.
Our
analysis
reveals
significant
spatial
temporal
differences
activities
during
warm
season
(April
September),
including
initiation,
movement,
lifespan,
with
notable
trends
observed
over
period.
found
contribute
substantially
hourly
precipitation,
accounting
for
approximately
60%,
which
exceeds
contribution
total
precipitation.
Furthermore,
role
has
also
increased,
driven
intensification
MCS-induced
rainfall.
Additionally,
exhibit
regional
differences.
Urban
areas
experience
more
pronounced
changes
activity
compared
surrounding
rural
regions.
Specifically,
urbanization
contributes
16%
MCS-related
19%
highlighting
its
substantial
enhancing
these
Moreover,
mountainous
water
bodies
cities
show
stronger
certain
than
plains.
may
be
attributed
climatological
conditions
that
favor
regions,
as
well
interactions
between
urbanization,
topography,
land–sea
contrasts.
These
complicated
dynamics
warrant
further
investigation
better
understand
implications.
Язык: Английский
Water-heat-carbon nexus for understanding mechanisms and response thresholds across urbanization gradients
Geography and sustainability,
Год журнала:
2025,
Номер
unknown, С. 100283 - 100283
Опубликована: Март 1, 2025
Язык: Английский
Trend analysis of the coupling effect between new urbanization and resources-environment in the Guangdong-Hong Kong-Macao Greater Bay area
Ecological Indicators,
Год журнала:
2025,
Номер
175, С. 113601 - 113601
Опубликована: Май 17, 2025
Язык: Английский
Asymmetric Impacts of Urbanization on Extreme Hourly Precipitation Across the Yangtze River Delta Urban Agglomeration During 1978–2012
Water,
Год журнала:
2025,
Номер
17(10), С. 1531 - 1531
Опубликована: Май 19, 2025
Significant
progress
has
been
made
in
understanding
how
extreme
precipitation
responds
to
climate
warming
across
various
time
scales.
However,
the
impact
of
urbanization
on
these
events
remains
unclear.
This
study
aims
thoroughly
examine
effects
hourly
(EHP)
and
its
spatial
heterogeneity
based
dynamic
station
classification
methods
EHP
indices
using
high-resolution
records
Yangtze
River
Delta
(YRD)
urban
agglomeration.
We
also
explore
contributed
changes
associated
uncertainties.
The
results
indicate
an
overall
increase
all
YRD,
with
significant
increases
being
more
pronounced
areas.
Furthermore,
correlate
positively
urbanization,
showing
greater
at
higher
levels
urbanization.
While
cannot
be
overlooked,
contribution
appears
relatively
limited,
contributions
less
than
50%.
are
predominantly
positive,
noticeable
for
different
sub-regions
temporal
variations
during
stages
or
Moreover,
influenced
by
urban–rural
methods,
especially
regarding
their
contributions.
Язык: Английский