Water Air & Soil Pollution, Год журнала: 2025, Номер 236(9)
Опубликована: Июнь 5, 2025
Язык: Английский
Water Air & Soil Pollution, Год журнала: 2025, Номер 236(9)
Опубликована: Июнь 5, 2025
Язык: Английский
Sustainable Cities and Society, Год журнала: 2023, Номер 101, С. 105072 - 105072
Опубликована: Ноя. 21, 2023
This study examines the effect of land cover, vegetation health, climatic forcings, elevation heat loads, and terrain characteristics (LVCET) on surface temperature (LST) distribution in West Africa (WA). We employ fourteen machine-learning models, which preserve nonlinear relationships, to downscale LST other predictands while preserving geographical variability WA. Our results showed that random forest model performs best downscaling predictands. is important for sub-region since it has limited access mainframes power multiplex algorithms. In contrast northern regions, southern regions consistently exhibit healthy vegetation. Also, areas with unhealthy coincide hot clusters. The positive Normalized Difference Vegetation Index (NDVI) trends Sahel underscore rainfall recovery subsequent Sahelian greening. southwesterly winds cause upwelling cold waters, lowering WA highlighting cooling influence water bodies LST. Identifying elevated paramount prioritizing greening initiatives, our underscores importance considering LVCET factors urban planning. Topographic slope-facing angles, diurnal anisotropic all contribute variations LST, emphasizing need a holistic approach when designing resilient sustainable landscapes.
Язык: Английский
Процитировано
33One Earth, Год журнала: 2024, Номер 7(1), С. 72 - 87
Опубликована: Янв. 1, 2024
Global water scarcity threatens agriculture, food security, and human sustainability. Hence, understanding changes in terrestrial storage (WS) is crucial. By utilizing climate models, reanalysis, satellite data, we demonstrate the effectiveness of multivariate bias correction technique facilitating precise WS representation while ensuring robust budget closure. Historical data indicate seasonal changes, where forested basins exhibit a surplus December-January-February season, with reversal June-July-August-September season. Non-forested display varied patterns influenced by geographical location land use type. Future projections increased deficits most Southern Hemisphere under middle-road (SSP 245) scenario wetter conditions regional rivalry 370) scenario. Weather systems governing vary season basin, resulting inconsistent moisture intake into basins. These findings underscore intricate interplay between transport, characteristics, WS, highlighting need to understand these complex interactions for effective resource management strategies changing climates.
Язык: Английский
Процитировано
18The Science of The Total Environment, Год журнала: 2023, Номер 912, С. 169261 - 169261
Опубликована: Дек. 12, 2023
Compound extreme events, encompassing drought, vegetation stress, wildfire severity, and heatwave intensity (CDVWHS), pose significant threats to societal, environmental, health systems. Understanding the intricate relationships governing CDVWHS evolution their interaction with climate teleconnections is crucial for effective adaptation strategies. This study leverages remote sensing, reanalysis data, models analyze during historical (1982–2014), near-future (2028–2060), far-future (2068–2100) periods under two Shared Socioeconomic Pathways (SSP; 245 585). Our results show that reduced health, unfavorable temperature conditions, low moisture conditions have negligible effects on density. However, they worsen of heatwaves increase risk wildfires. Wildfires can persist when thermal are poor despite favorable levels. For example, adequate availability, we link 2012 Siberian in Ob basin anomalous negative concurrent thermal-moisture conditions. In contrast, Amazon experiences exceptional drought associated same year. A comparative analysis North American fires reveals distinct burned area anomalies due variations density fuel. The lower positive areas because density, which amount Furthermore, examine basin-specific variability related compound CDVWHS, revealing primary modes through teleconnection patterns. Moreover, a substantial magnitude severity emerges between near far future SSP 585. underscores urgency targeted actions enhance ecosystem resilience safeguard vulnerable communities from impacts. Identifying hotspots comprehending complex environmental factors essential developing strategies changing climate.
Язык: Английский
Процитировано
21Groundwater for Sustainable Development, Год журнала: 2024, Номер 25, С. 101150 - 101150
Опубликована: Март 9, 2024
Язык: Английский
Процитировано
6Journal of Hydrology Regional Studies, Год журнала: 2024, Номер 56, С. 102046 - 102046
Опубликована: Ноя. 4, 2024
Язык: Английский
Процитировано
6The Science of The Total Environment, Год журнала: 2024, Номер 955, С. 177174 - 177174
Опубликована: Ноя. 2, 2024
Soil erosion is a critical environmental challenge with significant implications for agriculture, water quality, and ecosystem stability. Understanding its dynamics essential sustainable management societal welfare. Here, we analyze rainfall erosivity patterns across West Africa (WAF) during the historical (1982-2014), near future (2028-2060), far (2068-2100) periods under Shared Socioeconomic Pathways (SSPs 370 585). Using bias-corrected-downscaled (BCD) climate models validated against reference data, ensure an accurate representation of rainfall-a key driver (R-factor) soil erosion. We compare Renard's approach Modified Fournier Index (MFI) to calculate R-factor note strong correlation. However, method shows slightly lower accuracy in Sierra Leone, Guinea, The Gambia, likely due inability capture high-intensity, short-duration events. In contrast, MFI, utilizing continuous rain gauge proves more reliable these regions. also attribute fluctuations erosivity, such as those seen 2003 floods, synoptic weather influenced by multiple processes. Furthermore, our analysis reveals regions where could exceed 20 t/ha/yr change. Under SSP scenario, WAF projected rise 14.84 % 18.65 future, increasing further 585 19.86 23.49 %, respectively. most severe increases are expected Benin Nigeria, Nigeria potentially facing 66.41 585. These findings highlight region's exposure intensified climatic conditions underscore urgent need targeted adaptation strategies mitigate erosion's ecological socioeconomic impacts.
Язык: Английский
Процитировано
5The Science of The Total Environment, Год журнала: 2024, Номер 938, С. 173514 - 173514
Опубликована: Май 25, 2024
Язык: Английский
Процитировано
4Journal of Hydrology Regional Studies, Год журнала: 2024, Номер 54, С. 101876 - 101876
Опубликована: Июнь 24, 2024
Study
region:
Tabu
Basin
is
located
on
a
typical-deserted
steppe
in
Inner
Mongolia,
China
and
plays
significant
role
maintaining
ecological
stability
of
northern
China.
focus:
Among
rivers
worldwide,
51–60
%
cease
to
flow
for
at
least
one
day
annually,
especially
arid
semiarid
areas.
Understanding
interactions
between
intermittent
(IRs)
groundwater
(GW)
crucial
protecting
water
resources
sustaining
balance.
A
comprehensive
framework
was
developed
analyze
these
interactions.
New
hydrological
insights
the
Unlike
previous
studies,
this
study
considered
seasonal
differences
hydrochemical
isotopic
compositions
IR
GW,
as
well
intensive
influence
evaporation.
Multitemporal
datasets
were
employed
IR–GW
interaction
across
spatial,
temporal,
profiling
scales.
Hydrochemical
evidence
analysis
indicated
input
meltwater
with
depleted
signatures
GW
recharge
IR.
The
followed
order
rainfall
<
Язык: Английский
Процитировано
ENVIRONMENTAL SYSTEMS RESEARCH,
Год журнала:
2024,
Номер
13(1) Опубликована: Сен. 3, 2024
The
continued
threat
from
climate
change
and
human
impacts
on
water
resources
demands
high-resolution
continuous
hydrological
data
accessibility
for
predicting
trends
availability.
This
study
proposes
a
novel
threefold
downscaling
method
based
machine
learning
(ML)
which
integrates:
normalization;
interaction
of
hydrometeorological
variables;
the
application
time
series
split
cross-validation
that
produces
high
spatial
resolution
groundwater
storage
anomaly
(GWSA)
dataset
Gravity
Recovery
Climate
Experiment
(GRACE)
its
successor
mission,
GRACE
Follow-On
(GRACE-FO).
In
study,
relationship
between
terrestrial
(TWSA)
other
land
surface
variables
(e.g.,
vegetation
coverage,
temperature,
precipitation,
in
situ
level
data)
is
leveraged
to
downscale
GWSA.
predicted
downscaled
GWSA
datasets
were
tested
using
monthly
observations,
results
showed
model
satisfactorily
reproduced
temporal
variations
area,
with
Nash-Sutcliffe
efficiency
(NSE)
correlation
coefficient
values
0.8674
(random
forest)
0.7909
(XGBoost),
respectively.
Evapotranspiration
was
most
influential
predictor
variable
random
forest
model,
whereas
it
rainfall
XGBoost
model.
particular,
excelled
aligning
closely
observed
patterns,
as
evidenced
by
positive
correlations
lower
error
metrics
(Mean
Absolute
Error
(MAE)
54.78
mm;
R-squared
(R²)
0.8674).
5
km
(based
decreasing
trend
associated
variability
pattern.
An
increase
drought
severity
during
El
Niño
lengthened
full
recovery
historical
trends.
Furthermore,
lag
occurrence
precipitation
recharge
likely
controlled
intensity
characteristics
aquifer.
Projected
increases
could
further
times
response
droughts
changing
climate,
resetting
new
tipping
condition.
Therefore,
adaptation
strategies
must
recognise
less
will
be
available
supplement
supply
droughts.
Язык: Английский
Процитировано
Springer water,
Год журнала:
2025,
Номер
unknown, С. 179 - 215
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
Machine learning downscaling of GRACE/GRACE-FO data to capture spatial-temporal drought effects on groundwater storage at a local scale under data-scarcity
Groundwater in Southern Algeria Provinces: Challenges and Strategies