Land,
Год журнала:
2024,
Номер
13(2), С. 177 - 177
Опубликована: Фев. 2, 2024
The
studies
of
urban
heat
islands
or
thermal
environments
have
attracted
extensive
attention,
although
there
is
still
a
lack
research
focused
on
the
analysis
long-term
environment
change
with
fine
spatial
resolution
and
actual
exposure
residents.
Taking
rapidly
urbanizing
city
Nanjing,
China
as
an
example,
this
study
utilizes
Landsat-derived
daytime
time-series
land
surface
temperature
data
to
comprehensively
assess
city’s
(30-year)
change.
results
showed
that:
(1)
overall
island
intensity
noticeable
trend
first
increasing
then
decreasing
from
1990
2020.
(2)
It
exhibited
detailed
distribution
heat/cold
within
center
boundary.
percentage
was
77.01%
in
1990,
it
increased
85.79%
2010
decreased
80.53%
(3)
More
than
65%
residents
lived
areas
greater
3.0
°C,
which
also
methods
findings
can
provide
reference
for
other
changes
sustainable
development.
iScience,
Год журнала:
2024,
Номер
27(3), С. 109110 - 109110
Опубликована: Фев. 5, 2024
Increasing
urbanization
exacerbates
surface
energy
balance
perturbations
and
the
health
risks
of
climate
warming;
however,
it
has
not
been
determined
whether
urban-induced
warming
attributions
vary
from
local,
regional,
to
global
scale.
Here,
local
urban
heat
island
(SUHI)
is
evidenced
manifest
with
an
annual
daily
mean
intensity
0.99°C–1.10°C
during
2003–2018
using
satellite
observations
over
536
cities
worldwide.
Spatiotemporal
patterns
mechanisms
SUHI
tightly
link
climate-vegetation
conditions,
regional
effect
reaching
up
0.015°C–0.138°C
(annual
average)
due
alterations.
Globally,
footprint
1,860
approximates
1%
terrestrial
lands,
about
1.8–2.9
times
far
beyond
impervious
areas,
suggesting
enlargements
imprint
scales.
With
continuous
development
urbanization,
implications
for
SUHI-added
scaling
effects
are
considerably
important
on
accelerating
warming.
Ecological Indicators,
Год журнала:
2024,
Номер
161, С. 111972 - 111972
Опубликована: Апрель 1, 2024
Urban
form
has
been
confirmed
to
be
a
contributor
the
Heat
Island
(UHI)
effect
in
metropolitan
areas,
but
few
studies
have
focused
relationship
fast-growing
small
cities
through
LCZs
approach.
How
Local
Climate
Zones
(LCZs)
distributes
and
whether
correlations
between
UHI
intensity
(UHII)
urban
differ
cites
large
remain
studied.
This
study
mapped
analyzed
UHII
Yangling,
city
China
using
GIS-based
method.
The
results
showed:
(1)
37
%
of
area
contained
"High"
"Very
High"
UHII,
mainly
areas
with
high
building
density
expansive
impervious
surfaces.
maximum
Yangling
was
below
40
°C,
which
lower
than
that
many
cities.
In
addition,
scattered
formed
small-scale
cluster
different
from
where
large-scale
agglomeration
areas.
(2)
Unlike
previous
findings
megacities,
open
Low-rise
(LCZ6)
most
prevalent
LCZ
Yangling.
(3)
build-up
(2.01
°C)
significantly
higher
those
natural
types
(-0.61
°C),
compact
(LCZ1-3)
(LCZ4-6).
(4)
Natural
factors
were
negatively
correlated
whereas
positively
on
greater
factors.
These
will
help
climate
researchers
planners
better
understand
apply
this
knowledge
build
more
comfortable
thermal
environment.
