Land,
Год журнала:
2024,
Номер
13(10), С. 1626 - 1626
Опубликована: Окт. 7, 2024
Understanding
the
driving
mechanisms
behind
surface
urban
heat
island
(SUHI)
effects
is
essential
for
mitigating
degradation
of
thermal
environments
and
enhancing
livability.
However,
previous
studies
have
primarily
concentrated
on
central
areas,
lacking
a
comprehensive
analysis
entire
metropolitan
area
over
distinct
time
periods.
Additionally,
most
relied
regression
models
such
as
ordinary
least
squares
(OLS)
or
logistic
regression,
without
adequately
analyzing
spatial
heterogeneity
factors
influencing
effects.
Therefore,
this
study
aims
to
explore
in
Guangzhou-Foshan
across
different
The
Local
Climate
Zones
(LCZs)
method
was
employed
analyze
landscape
characteristics
structure
metropolis
years
2013,
2018,
2023.
Furthermore,
Geographically
Weighted
Regression
(GWR),
Multi-scale
(MGWR),
Geographical
Detector
(GD)
were
utilized
investigate
interactions
between
(land
cover
factors,
environmental
socio-economic
factors)
Surface
Urban
Heat
Island
Intensity
(SUHII),
maximizing
explanation
SUHII
all
Three
main
findings
emerged:
First,
exhibited
significant
heterogeneity,
with
non-linear
relationship
SUHII.
Second,
SUHI
displayed
core-periphery
pattern,
Large
lowrise
(LCZ
8)
compact
3)
areas
showing
highest
levels
core
zones.
Third,
land
emerged
influential
metropolis.
These
results
indicate
that
exhibit
notable
varying
negative
can
be
leveraged
mitigate
locations.
Such
offer
crucial
insights
future
policy-making.
Remote Sensing,
Год журнала:
2024,
Номер
16(7), С. 1286 - 1286
Опубликована: Апрель 5, 2024
Rapid
urbanisation
in
the
global
south
has
often
introduced
substantial
and
rapid
uncontrolled
Land
Use
Cover
(LULC)
changes,
considerably
affecting
Surface
Temperature
(LST)
patterns.
Understanding
relationship
between
LULC
changes
LST
is
essential
to
mitigate
such
effects,
considering
urban
heat
island
(UHI).
This
study
aims
elucidate
spatiotemporal
variations
alterations
of
areas
compared
changes.
The
focused
on
a
peripheral
area
Phnom
Penh
(Cambodia)
undergoing
development.
Using
Landsat
images
from
2000
2021,
analysis
employed
an
exploratory
time-series
LST.
revealed
noticeable
variability
(20
69
°C),
which
was
predominantly
influenced
by
seasonal
also
provided
insights
into
how
varies
within
different
at
exact
spatial
locations.
These
did
not
manifest
uniformly
but
displayed
site-specific
responses
accounts
for
changing
land
surfaces’
complex
physical
energy
interaction
over
time.
methodology
offers
replicable
model
other
similarly
structured,
rapidly
urbanised
regions
utilising
novel
semi-automatic
processing
images,
potentially
inspiring
future
research
various
planning
monitoring
contexts.
Environment International,
Год журнала:
2023,
Номер
183, С. 108385 - 108385
Опубликована: Дек. 12, 2023
The
impacts
of
the
availability
and
spatial
configuration
urban
green
spaces
(UGS)
on
their
cooling
effects
can
vary
with
background
climate
conditions.
However,
large-scale
studies
that
assess
potential
heterogeneous
relationships
UGS
thermal
environment
are
still
lacking.
In
this
study,
we
investigated
land
surface
temperature
(LST)
taking
306
cities
in
China
as
a
case
study
covering
multi-biome-scale.
We
first
calculated
surrounding
for
built-up
pixels
each
city
using
distance-weighted
approach,
its
was
quantified
through
Gini
coefficient.
Then,
employed
various
regression
models
to
explore
how
coefficient
LST
varies
across
different
quantiles
between
day-
nighttime.
results
revealed
negatively
associated
both
daytime
nighttime
LST,
while
showed
positive
impact
solely
indicating
an
adequate
equally
distributed
contributes
lower
environmental
temperatures
during
daytime.
Furthermore,
decreased
increased
quantiles.
Whereas
only
quantile
levels,
effect
remaining
almost
insignificant
night.
Our
findings
provide
new
insights
into
environment,
offering
significant
implications
infrastructure
planning
aiming
at
lowering
heat
island.
Theoretical and Applied Climatology,
Год журнала:
2024,
Номер
155(5), С. 3841 - 3859
Опубликована: Фев. 5, 2024
Abstract
Urban
air
temperature
is
a
crucial
variable
for
many
urban
issues.
However,
the
availability
of
often
limited
due
to
deficiency
meteorological
stations,
especially
in
areas
with
heterogeneous
land
cover.
Many
studies
have
developed
different
methods
estimate
temperature.
variables
and
local
climate
zone
(LCZ)
been
less
used
this
topic.
Our
study
new
method
canopy
layer
during
clear
sky
days
by
integrating
surface
(LST)
from
MODIS,
based
on
reanalysis
data,
LCZ
data
Szeged,
Hungary.
Random
forest
algorithms
were
developing
estimation
model.
We
focused
four
seasons
distinguished
between
daytime
nighttime
situations.
The
cross-validation
results
showed
that
our
can
effectively
temperature,
average
root
mean
square
error
(RMSE)
0.5
℃
(
R
2
=
0.99)
0.9
0.95),
respectively.
test
dataset
2018
2019
indicated
optimal
model
selected
had
best
performance
summer,
time-synchronous
RMSE
2.1
0.6,
daytime)
2.2
0.86,
nighttime)
seasonal
1.5
0.34,
1.2
0.74,
nighttime).
In
addition,
we
found
was
more
important
at
night,
while
contributed
daytime,
which
revealed
temporal
mechanisms
effect
these
two
estimation.
provides
novel
reliable
tool
explore
thermal
environment
researchers.
Land,
Год журнала:
2024,
Номер
13(9), С. 1479 - 1479
Опубликована: Сен. 12, 2024
Optimizing
urban
spatial
morphology
is
one
of
the
most
effective
methods
for
improving
thermal
environment.
Some
studies
have
used
local
climate
zones
(LCZ)
classification
system
to
examine
relationship
between
and
Surface
Urban
Heat
Islands
(SUHIs).
However,
these
often
rely
on
single-time-point
data,
failing
consider
changes
in
space
time-series
LCZ
mapping
relationships.
This
study
utilized
remote
sensing
data
from
Landsat
5,
7,
8–9
retrieve
land
surface
temperatures
Changsha
2005
2020
using
Mono-Window
Algorithm.
The
spatial-temporal
evolution
Island
Intensity
(SUHII)
was
then
examined
analyzed.
aims
(1)
propose
a
localized,
long-time
method,
(2)
investigate
SUHII,
(3)
develop
more
convenient
SUHI
assessment
method
planning
design.
results
showed
that
reflects
sequence
expansion.
In
terms
quantity,
number
built-type
LCZs
maintaining
their
original
types
low,
with
each
undergoing
at
least
type
change.
open
increased
most,
followed
by
sparse
composite
LCZs.
Spatially,
experience
reverse
transitions
due
expansion
quality
improvements
central
areas.
Seasonal
vary,
differences
not
only
among
but
also
building
heights
within
same
type.
relative
importance
parameters
differs
seasons.
model
constructed
Boosted
Regression
Trees
(BRT)
demonstrated
high
predictive
accuracy,
R2
values
0.911
summer
0.777
winter.
practical
case
validation,
explained
97.86%
96.77%
provides
evidence-based
recommendations
mitigate
heat
create
comfortable
built