Journal of Cleaner Production,
Год журнала:
2023,
Номер
425, С. 138892 - 138892
Опубликована: Сен. 22, 2023
Global
warming
is
a
pressing
problem
that
necessitates
immediate
action.
This
phenomenon
particularly
affecting
the
quality
of
life
in
larger
cities
due
to
population
growth
and
human
mobility.
Understanding
space-time
variability
heat
stress
various
locations
will
face
future
therefore
crucial
for
us.
Taking
into
account
aforementioned
facts,
current
study
examined
evolution
Hi
index
four
European
capitals
-
Berlin,
Madrid,
Paris,
Rome
during
months
July,
August,
September
between
2008,
2012,
2017.
The
Space
Agency
(ESA)
UrbClim
climate
model
was
used
collect
environmental
data.
Furthermore,
Local
Climatic
Zones
(LCZ)
classifications
land
use/cover
change
(LULC)
coverages
were
improve
evaluation
extrapolation
results.
According
findings,
studied
areas
experienced
significant
increases
temperatures
2008
cities'
average
increase
0.31
°C
per
decade,
with
southern
experiencing
greater
intensity
northern
less
intensity.
When
comparing
spatiotemporal
different
zones,
discovered
more
impervious
fewer
green
are
vulnerable
potential
stress.
As
result,
urban
developments
can
be
able
create
spaces
resistant
stress,
improving
people's
life.
Frontiers in Environmental Science,
Год журнала:
2023,
Номер
11
Опубликована: Фев. 10, 2023
Under
the
background
of
global
warming,
interaction
between
heat
waves
(HWs)
and
urban
island
(UHI)
has
led
to
trends
increase
in
intensity,
frequency,
duration
extreme
events
areas,
seriously
threatening
health
populations.
Taking
Guangzhou
(a
tropical
megacity
China)
as
an
example,
this
study
used
automatic
weather
station
data
ERA5
reanalysis
explore
HWs
UHI,
elucidate
effects
wind
speed
local
climate
zones
(LCZs)
on
such
interaction.
Results
revealed
obvious
HWs–UHI
Guangzhou,
whereby
induces
amplification
effect
UHI
intensity
(UHII)
that
was
most
significant
at
night.
In
main
area,
UHII
both
weakened
with
increasing
speed,
indicating
low
speeds
contribute
increased
occurrence
enhancement
UHII.
Differently,
some
areas
peripheral
medium
stronger
than
speeds,
which
reflect
impact
advection
from
center.
For
different
LCZs
strongest
UHII,
highest
risk
HW
occurrence,
were
found
compact
mid-rise
buildings
low-rise
(LCZ2
LCZ3,
respectively),
followed
by
high-rise
(LCZ1),
mainly
affected
shading
buildings.
The
weakest
lowest
open
(LCZ4
LCZ5,
generally
have
good
ventilation
conditions.
Our
findings
will
help
understand
warming
its
association
regions,
implications
for
rational
improvement
thermal
environment
other
regions
globally.
The Science of The Total Environment,
Год журнала:
2023,
Номер
903, С. 166374 - 166374
Опубликована: Авг. 26, 2023
The
impact
of
heatwaves
(HWs)
on
urban
heat
island
(UHI)
is
a
contentious
topic
with
contradictory
research
findings.
A
comprehensive
understanding
the
response
and
rural
areas
to
HWs,
considering
underlying
cause
surface
energy
budget
changes,
remains
elusive.
This
study
attempts
address
this
gap
by
investigating
2020
HW
event
in
Greater
Sydney
Area
using
Advanced
Weather
Research
Forecasting
(WRF)
model
250-m
high
resolution.
Findings
indicate
that
intensifies
nighttime
UHI
approximately
4
°C.
An
analysis
budgets
reveals
store
more
during
due
receiving
solar
radiation
less
evapotranspiration
compared
areas.
maximum
storage
flux
can
be
around
200
W/m2
higher
than
post-HW.
stored
released
at
nightime,
raising
air
temperature
Forests
savannas
have
relatively
lower
fluxes
transpiration
albedo,
only
50
In
contrast,
negative
synergistic
effect
detected
between
2-m
HW.
may
because
other
meteorological
conditions
including
wind
substantial
impacts
pattern.
strong
hot
dry
winds
coming
from
west
resulted
western
district,
intra-city
disparities
are
higher.
Meanwhile,
forest
area
also
experiences
temperatures
westward
winds.
addition,
changes
direction
alter
distribution
northern
region.
findings
present
provide
some
insights
into
mitigation
Science China Earth Sciences,
Год журнала:
2021,
Номер
64(8), С. 1242 - 1253
Опубликована: Июль 20, 2021
Abstract
Despite
the
prevalence
of
artificial
separation
daytime
and
nighttime
hot
extremes,
they
may
actually
co-occur
or
occur
sequentially.
Considering
their
potential
lead-lag
configuration,
this
study
identified
an
entire
heatwave
period
as
consecutive
days
with
either
extremes
investigated
changes
sequence
during
heatwaves
over
China
from
1961
to
2017.
It
was
found
that
majority
(82%)
were
compound
had
both
exceeding
90th
percentile-based
thresholds,
while
only
7%
(11%)
purely
(nighttime)
contained
extremes.
During
periods
heatwaves,
usually
occurred
one
day
a
few
before
which
in
accordance
daily
variations
radiation
meteorological
conditions,
such
increasing
surface
humidity
cloud
cover,
decreasing
solar
periods.
From
2017,
numbers
exhibited
sharpest
increase
statistically
significant
trend
0.44
times
decade
−1
,
contrast
insignificant
0.00
for
0.09
heatwaves.
Within
periods,
nights
starting
earlier
ending
later,
concurrent
daytime-nighttime
increased
significantly
at
0.20
.
In
particular,
urban
area
not
subject
increasingly
more
frequent
longer
but
also
occurrences
serious
impact.
This
provides
instructions
researchers
customize
select
appropriate
indices.
