Hydrology and earth system sciences,
Journal Year:
2022,
Volume and Issue:
26(9), P. 2365 - 2386
Published: May 6, 2022
Abstract.
The
Middle
East
and
North
Africa
(MENA)
region
has
experienced
more
frequent
severe
drought
events
in
recent
decades,
leading
to
increasingly
pressing
concerns
over
already
strained
food
water
security.
An
effective
monitoring
early
warning
system
is
thus
critical
support
risk
mitigation
management
by
countries
the
region.
Here
we
investigate
potential
for
assimilation
of
leaf
area
index
(LAI)
soil
moisture
observations
improve
representation
overall
hydrological
carbon
cycles
an
advanced
land
surface
model.
results
reveal
that
assimilating
does
not
meaningfully
model
biospheric
processes
this
region,
but
instead
it
degrades
simulation
interannual
variation
evapotranspiration
(ET)
fluxes,
mainly
due
weaknesses
representing
prognostic
phenology.
However,
LAI
leads
greater
improvement,
especially
transpiration
constraining
timing
simulated
vegetation
growth
response
evolving
climate
conditions.
also
helps
correct
erroneous
interaction
between
phenology
irrigation
during
summertime,
effectively
reducing
a
large
positive
bias
ET
fluxes.
Independently
or
alters
categorization
drought,
with
differences
being
categories.
We
highlight
changing
use
hydroclimate
as
one
key
be
captured
building
successful
MENA
Journal of Environmental Science and Health Part C,
Journal Year:
2023,
Volume and Issue:
41(3-4), P. 77 - 120
Published: Oct. 2, 2023
Climate
change
and
air
pollution
are
two
interconnected
global
challenges
that
have
profound
impacts
on
human
health.
In
Africa,
a
continent
known
for
its
rich
biodiversity
diverse
ecosystems,
the
adverse
effects
of
climate
particularly
concerning.
This
review
study
examines
implications
health
well-being
in
Africa.
It
explores
intersection
these
factors
their
impact
various
outcomes,
including
cardiovascular
disease,
respiratory
disorders,
mental
health,
vulnerable
populations
such
as
children
elderly.
The
highlights
disproportionate
groups
emphasizes
need
targeted
interventions
policies
to
protect
Furthermore,
it
discusses
role
exacerbating
potential
long-term
consequences
public
also
addresses
importance
considering
temperature
precipitation
changes
modifiers
pollution.
By
synthesizing
existing
research,
this
aims
shed
light
complex
relationships
highlight
key
findings,
knowledge
gaps,
solutions
mitigating
region.
insights
gained
from
can
inform
evidence-based
mitigate
promote
sustainable
development
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Jan. 4, 2024
Abstract
Droughts
pose
a
severe
environmental
risk
in
countries
that
rely
heavily
on
agriculture,
resulting
heightened
levels
of
concern
regarding
food
security
and
livelihood
enhancement.
Bangladesh
is
highly
susceptible
to
hazards,
with
droughts
further
exacerbating
the
precarious
situation
for
its
170
million
inhabitants.
Therefore,
we
are
endeavouring
highlight
identification
relative
importance
climatic
attributes
estimation
seasonal
intensity
frequency
Bangladesh.
With
period
forty
years
(1981–2020)
weather
data,
sophisticated
machine
learning
(ML)
methods
were
employed
classify
35
agroclimatic
regions
into
dry
or
wet
conditions
using
nine
parameters,
as
determined
by
Standardized
Precipitation
Evapotranspiration
Index
(SPEI).
Out
24
ML
algorithms,
four
best
methods,
ranger,
bagEarth,
support
vector
machine,
random
forest
(RF)
have
been
identified
prediction
multi-scale
drought
indices.
The
RF
classifier
Boruta
algorithms
shows
water
balance,
precipitation,
maximum
minimum
temperature
higher
influence
occurrence
across
trend
spatio-temporal
analysis
indicates,
has
decreased
over
time,
but
return
time
increased.
There
was
significant
variation
changing
spatial
nature
intensity.
Spatially,
shifted
from
northern
central
southern
zones
Bangladesh,
which
had
an
adverse
impact
crop
production
rural
urban
households.
So,
this
precise
study
important
implications
understanding
how
mitigate
impacts.
Additionally,
emphasizes
need
better
collaboration
between
relevant
stakeholders,
such
policymakers,
researchers,
communities,
local
actors,
develop
effective
adaptation
strategies
increase
monitoring
meticulous
management
Journal of Hydrology Regional Studies,
Journal Year:
2024,
Volume and Issue:
52, P. 101689 - 101689
Published: Feb. 10, 2024
Semi-arid
regions
are
highly
susceptible
to
drought
due
their
low
annual
precipitation
and
ecological
vulnerability
climate
change.
This
study
focuses
on
the
Niamey
region
in
southwestern
Niger
employs
Vegetation
Health
Index
(VHI)
assess
severity
its
changes.
Using
data
from
Landsat
8
OLI/TIRS,
including
Normalized
Difference
(NDVI)
Land
Surface
Temperature
(LST),
we
derived
Condition
(VCI),
(TCI),
for
2013
2019.
Analysis
of
time
series
2019
reveals
that
experienced
severe
drought,
with
62.31
km2
42.35
km2,
respectively,
facing
a
lack
precipitation.
Notably,
extreme
droughts
covered
large
area
55.75
accounting
13.94
%
region,
indicating
an
increase
frequency
Furthermore,
NDVI
values
ranged
0.50
−
0.18,
while
those
0.57
0.20.
Additionally,
relationship
between
LST
appeared
be
linear
inversely
proportional
both
(R2
=
0.34,
P
0.58)
0.06,
0.25).
Rising
demonstrated
significant
effects
plants,
surface
features
playing
crucial
role.
The
significance
this
research
is
understand
has
impact
agriculture,
water
resources
development.
Remote
sensing
monitor
high
resolution
over
areas
showed
patterns
distribution
during
period
Niamey.
could
provide
valuable
insights
into
land
environmental
planning
tropical
regions.
Hydrological Processes,
Journal Year:
2024,
Volume and Issue:
38(7)
Published: July 1, 2024
Abstract
Drought
is
the
most
destructive
phenomenon
that
distresses
terrestrial
carbon
cycle
balance
and
crop
production.
The
variation
in
evapotranspiration
(ET)
gross
primary
productivity
(GPP)
a
significant
cause
of
agricultural
drought
effects
on
water
use
efficiency.
This
study
aims
to
evaluate
impact
WUE
it's
anomalies
different
climate
regions.
standard
vegetation
index
was
used
measure
extent
drought.
calculated
using
ratio
ET,
GPP,
classification
De
Martonne
method.
conducted
over
last
22
years,
from
2001
2022.
Meanwhile,
2001,
2002,
2014,
2018
were
considered
high
years
based
22‐year
analysis.
According
remote
sensing
analysis
ET
increased
throughout
all
regions
more
strongly
arid
zone
than
humid
Humid
areas
vital
due
ones.
badge
with
severity
across
climates
except
very
zone.
saw
faster
recovery
times
ones,
experienced
severe
droughts.
findings
this
research
are
essential
for
understanding
cycles
agriculture
management.
helped
analyse
varying
change.
significance
includes
informing
agricultural,
resource,
management
planning
Punjab
Province,
an
region
vulnerable
holds
important
learnings
worldwide.
It
has
practical
scientific
importance
regarding
systems'
specific
stresses
responses
Journal of Energy Environmental & Chemical Engineering,
Journal Year:
2025,
Volume and Issue:
10(1), P. 1 - 11
Published: Jan. 22, 2025
Ethiopia
faces
significant
vulnerability
to
climate
change
due
its
limited
adaptive
capacity
and
heavy
reliance
on
rain-fed
agriculture
for
livelihoods.
Drought,
a
critical
aspect
of
change,
is
persistent
silent
disaster
that
gradually
affects
extensive
areas
across
the
country.
Unlike
sudden
natural
disasters
such
as
floods
or
tornadoes,
impacts
drought
develop
slowly
are
not
immediately
apparent.
This
paper
examines
risk
management
in
Ethiopia,
country
recurrent
droughts
fanned
by
significantly
impacting
millions
people,
particularly
rural
areas.
The
aim
investigate
socio-environmental
challenges
raised
water
scarcity,
which
agricultural
productivity,
food
security,
public
health.
study
emphasizes
importance
integrated
strategies
combine
government
initiatives,
community
engagement,
international
support
enhance
resilience
among
vulnerable
populations.
implementation
Productive
Safety
Net
Program
(PSNP),
community-driven
adaptation
measures,
role
social
capital
fostering
cooperation
resource
sharing
during
crises
key
strategy
short
term
adaptation.
Advanced
monitoring
predictive
technologies
improve
preparedness
response
events
crucial.
By
addressing
both
technical
dimensions
management,
this
research
contributes
development
sustainable
solutions
mitigate
promote
long-term
Ethiopia.
Remote Sensing,
Journal Year:
2025,
Volume and Issue:
17(4), P. 708 - 708
Published: Feb. 19, 2025
Water
scarcity
significantly
challenges
agricultural
systems
worldwide,
especially
in
tropical
areas
such
as
the
Dominican
Republic.
This
study
explores
integrating
satellite-based
remote
sensing
technologies
and
field-based
soil
moisture
sensors
to
assess
water
stress
optimize
irrigation
management
avocado
orchards
Puerto
Escondido,
Using
multispectral
imagery
from
Landsat
8
9
satellites,
key
vegetation
indices
(NDVI
SAVI)
NDWI,
a
water-related
index
that
specifically
indicates
changes
crop
contents,
rather
than
vigor,
were
derived
monitor
health,
growth
stages,
contents.
Crop
coefficient
(Kc)
values
calculated
these
combined
with
reference
evapotranspiration
(ETo)
estimates
three
meteorological
models
(Hargreaves–Samani,
Priestley–Taylor,
Blaney–Criddle)
requirements.
The
results
revealed
data
at
30
cm
depth
strongly
correlated
satellite-derived
estimates,
reflecting
trees’
critical
root
zone
dynamics.
Additionally,
seasonal
patterns
showed
NDVI
SAVI
effectively
tracked
vegetative
while
NDWI
indicated
canopy
content,
particularly
during
periods
of
stress.
Integrating
field
measurements
allowed
comprehensive
assessment
requirements
stress,
providing
valuable
insights
for
improving
practices.
Finally,
this
demonstrates
potential
large-scale
assessment,
offering
scalable
cost-effective
solution
optimizing
practices
water-limited
regions.
These
findings
advance
precision
agriculture,
environments,
provide
foundation
future
research
aimed
enhancing
accuracy
IntechOpen eBooks,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 7, 2025
Soils
are
one
of
the
most
valuable
non-renewable
natural
resources,
and
conserving
them
is
critical
for
agricultural
development
ecological
sustainability
because
they
provide
numerous
ecosystem
services.
Soil
erosion,
a
complex
process
caused
by
forces
such
as
rainfall
wind,
poses
significant
challenges
to
ecosystems,
agriculture,
infrastructure,
water
quality,
necessitating
advanced
monitoring
modeling
techniques.
It
has
become
global
issue,
threatening
systems
food
security
result
climatic
changes
human
activities.
Traditional
soil
erosion
field
measurement
methods
have
limitations
in
spatial
temporal
coverage.
The
integration
new
techniques
remote
sensing
(RS),
geographic
information
(GIS),
artificial
intelligence
(AI)
revolutionized
our
approach
understanding
managing
erosion.
RS
technologies
widely
applicable
investigations
due
their
high
efficiency,
time
savings,
comprehensiveness.
In
recent
years,
advancements
sensor
technology
resulted
fine
spatial-resolution
images
increased
accuracy
detection
mapping
purposes.
Satellite
imagery
provides
data
on
land
cover
properties,
whereas
digital
elevation
models
(DEMs)
detailed
required
assess
slope
flow
accumulation,
which
important
factors
modeling.
GIS
enhances
analysis
integrating
multiple
datasets,
making
it
easier
identify
hot
spots
utilizing
like
Revised
Universal
Loss
Equation
(RUSLE)
estimate
loss
guide
management
decisions.
Furthermore,
AI
techniques,
particularly
machine
learning
(ML)
deep
(DL),
significantly
improve
predictions
analyzing
historical
extracting
relevant
features
from
imagery.
These
use
convolutional
neural
networks
(CNNs)
augmentation,
well
risk
factors.
Additionally,
innovative
methods,
including
biodegradable
materials,
hydroseeding,
autonomous
vehicles
precision
being
developed
prevent
mitigate
effectively.
Although
specific
case
studies
demonstrate
successful
implementation
this
integrated
framework
variety
landscapes,
ongoing
availability
model
validation
must
be
addressed.
Ultimately,
collaboration
RS,
GIS,
not
only
but
also
paves
way
effective
control
strategies,
underscoring
importance
continued
research
vital
area.
This
chapter
addresses
basic
concerns
related
application
erosion:
concepts,
acquisition,
tools,
types,
management,
visualization,
an
overview
type
its
role