Prediction of spatial-temporal flood water level in agricultural fields using advanced machine learning and deep learning approaches
Natural Hazards,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 17, 2025
Язык: Английский
Disaster Management Systems: Utilizing YOLOv9 for Precise Monitoring of River Flood Flow Levels Using Video Surveillance
G. Shankar,
M. Kalaiselvi Geetha,
P. Ezhumalai
и другие.
SN Computer Science,
Год журнала:
2025,
Номер
6(3)
Опубликована: Март 14, 2025
Язык: Английский
Analysis and visualization of spatio-temporal variations of ecological vulnerability in Pakistan using satellite observation datasets
Environmental and Sustainability Indicators,
Год журнала:
2024,
Номер
23, С. 100425 - 100425
Опубликована: Июнь 20, 2024
Pakistan
is
the
fifth
most
populous
country
in
world.
Its
ecological
environment
facing
numerous
stresses
such
as
climate
change,
rapid
urbanization,
natural
disasters,
and
a
decline
air
quality.
Thus,
scientific
understanding
of
spatial
temporal
changes
Pakistan's
crucial
for
formulating
an
informed
strategy
regional
sustainability.
This
study
used
Google
Earth
Engine
platform
Remote
Sensing
Ecological
Index
(RSEI)
to
investigate
vulnerability
three
provinces
1990,
2000,
2010,
2020.
Landsat
5
8
datasets
are
construct
RSEI
indicators
Principal
Component
Analysis
(PCA)
adopted
objectively
compute
past
decades.
The
results
indicated
that
(1)
Punjab
province
exhibited
slightly
improved
trend
from
1990
2020
with
overall
dominance
'moderate'
level
all
four
years;
(2)
Sindh
has
declining
'poor'
contributing
28.6%
total
area
compared
1.04%
1990;
(3)
Balochistan
shown
resilience
some
extent
during
1900-2010
vulnerability.
However,
observed
between
2010
These
research
can
provide
support
Punjab,
Sindh,
achieving
sustainable
development
while
conserving
environment.
Язык: Английский
Improved method for cropland extraction of seasonal crops from multi-sensor satellite data
International Journal of Remote Sensing,
Год журнала:
2024,
Номер
45(18), С. 6249 - 6284
Опубликована: Авг. 26, 2024
Monitoring
agricultural
land
over
vast
geographical
areas
presents
challenges
due
to
the
absence
of
accurate,
comprehensive
and
precise
data,
which
has
become
a
complex
process
that
is
difficult
do
in
terms
both
timespans
consistency.
Hence,
this
study
an
improved
approach
for
identification
by
utilizing
capabilities
Sentinel-1
Sentinel-2
satellites
with
variety
vegetation
non-vegetation
indices
machine
learning
algorithms.
The
Multispectral
Correlation
Mapper
(MCM)
Random
Forest
(RF)
algorithms
are
adopted
train
different
lands,
crop
types
sowing
cultivation
seasons.
45-bands
mega-file
data
cube
(MFDC)
fusion
each
season
incorporates
essential
features
derived
from
datasets
seasons,
i.e.
Rabi
(winter-spring
season)
Kharif
(summer-autumn
season).
proposed
method
demonstrated
resilience
when
applied
satellite
while
effectively
reducing
impact
non-agricultural
elements
such
as
shrubs,
grass,
bare
soil
orchards.
results
demonstrate
notable
ability
differentiate
between
resulting
high
level
precision
measuring
extent
cultivated
during
seasons
area
626,947
acres
590,858
acres,
respectively.
total
area,
ascertained
observation
cropping
pattern
modifications
entire
year
(June
2021–May
2022)
635,655
acres.
validation
exercise
shows
higher
accuracy
cropland,
overall
98.8%,
kappa
0.97,
user
98.69%
producer
99.13%.
Additionally,
it
was
spatially
compared
ESRI,
ESA
MODIS
cropland
layers
government
statistical
data.
Furthermore,
research
investigates
temporal
dynamics
growth
phases
using
spectral
bands
indices.
This
improves
provides
useful
insights
into
phenology.
Язык: Английский