Groundwater for Sustainable Development, Journal Year: 2024, Volume and Issue: 25, P. 101160 - 101160
Published: March 29, 2024
Language: Английский
Groundwater for Sustainable Development, Journal Year: 2024, Volume and Issue: 25, P. 101160 - 101160
Published: March 29, 2024
Language: Английский
International Journal of Disaster Risk Reduction, Journal Year: 2024, Volume and Issue: 108, P. 104503 - 104503
Published: April 23, 2024
Floods are a widespread and damaging natural phenomenon that causes harm to human lives, resources, property has agricultural, eco-environmental, economic impacts. Therefore, it is crucial perform flood susceptibility mapping (FSM) identify susceptible zones mitigate reduce damage. This study assessed the damage caused by 2022 flash in Sindh identified flood-susceptible based on frequency ratio (FR) analytical hierarchy process (AHP) models. Flood inventory maps were generated, containing 150 sampling points, which manually selected from Landsat imagery. The points split into 70% for training 30% validating results. Furthermore, fourteen conditioning factors considered analysis developing FSM. final FSM categorized five zones, representing levels very low high. results areas under high Ghotki (FR 4.42% AHP 5.66%), Dadu 21.40% 21.29%), Sanghar 6.81% 6.78%). Ultimately, accuracy was evaluated using receiver operating characteristics area curve method, resulting 82%, 83%), 91%, 90%), 96%, 95%). enhances scientific understanding of impacts across diverse regions emphasizes importance accurate informed decision-making. findings provide valuable insights supportive policymakers, agricultural planners, stakeholders engaged risk management adverse consequences floods.
Language: Английский
Citations
22Geocarto International, Journal Year: 2024, Volume and Issue: 39(1)
Published: Jan. 1, 2024
The present research is conducted in the southern region of Khyber Pakhtunkhwa, Pakistan, to identify groundwater potential zones (GWPZ). We used three models including Weight Evidence (WOE), Frequency Ratio (FR), and Information Value (IV) with twelve parameters (elevation, slope, aspect, curvature, drainage network, LULC, precipitation, geology, Lineament, NDVI, road, soil texture, that have been prepared integrated into ArcGIS 10.8. reliability applied models' results was validated using Area Under Receiver Operating Characteristics (AUROC). GWPZ were reclassified five classes, i.e. very low, medium, high, high zone. area occupied by mentioned classes WOE are low (10.14%), (19.58%), medium (26.75%), (27.10%), (16.40%), while FR (20.93%), (32.38%), (18.92%), (13.13%), (14.61%) IV (14.41%), (17.17%), (29.01%), (25.85%), High (13.53%). Success Rate Curve WOE, FR, 0.86, 0.91, 0.87, Predicted values 0.89, 0.93, 0.90, respectively. revealed all statistical performed well delineate GWPZ. However, use technique strongly encouraged evaluate GWPZ, its findings especially useful for managing resources urban planning. Our approaches assessing mapping can be any similar scenarios recommended as a helpful tool policymakers manage groundwater.
Language: Английский
Citations
20Climate Risk Management, Journal Year: 2024, Volume and Issue: 45, P. 100630 - 100630
Published: Jan. 1, 2024
Monitoring drought in semi-arid regions due to climate change is of paramount importance. This study, conducted Morocco's Upper Drâa Basin (UDB), analyzed data spanning from 1980 2019, focusing on the calculation indices, specifically Standardized Precipitation Index (SPI) and Evapotranspiration (SPEI) at multiple timescales (1, 3, 9, 12 months). Trends were assessed using statistical methods such as Mann-Kendall test Sen's Slope estimator. Four significant machine learning (ML) algorithms, including Random Forest, Voting Regressor, AdaBoost K-Nearest Neighbors evaluated predict SPEI values for both three 12-month periods. The algorithms' performance was measured indices. study revealed that distribution within UDB not uniform, with a discernible decreasing trend values. Notably, four ML algorithms effectively predicted specified demonstrated highest Nash-Sutcliffe Efficiency (NSE) values, ranging 0.74 0.93. In contrast, algorithm produced range 0.44 0.84. These research findings have potential provide valuable insights water resource management experts policymakers. However, it imperative enhance collection methodologies expand measurement sites improve representativeness reduce errors associated local variations.
Language: Английский
Citations
18Case Studies in Thermal Engineering, Journal Year: 2024, Volume and Issue: 55, P. 104117 - 104117
Published: Feb. 12, 2024
According to the Global Climate Risk Index, Pakistan is fifth most vulnerable nation in world climate change. The growing phenomena of change and global warming have increased on a worldwide level. To combat effects change, transition sustainable transportation system essential. Developed countries evaluated costs benefits such transition. However, developing like rarely investigated this matter thoroughly. So, context, paper case study analyzing transport sector Punjab-Pakistan achieve some targets for transportation. analysis carried out by using energy model Low Emission Analysis Platform (LEAP) from 2019 2050. Three scenarios are made, i.e., Business as Usual Scenario (BAUS) following current policies, Efficient Combustion (ECS), Electrical Vehicle (EVS) figure environmental social costs. It concluded that 2050, ECS EVS will reduce carbon dioxide emissions 21.6 18.5 million metric tons equivalent, compared Business-as-Usual Scenario. These savings terms cost be $ 157.1 134.6 Electric This research may help find suitable policy decisions at provincial level enhance sustainability increasing share electric vehicles Punjab, results replicated whole country South Asia.
Language: Английский
Citations
13Physics and Chemistry of the Earth Parts A/B/C, Journal Year: 2024, Volume and Issue: 134, P. 103574 - 103574
Published: Feb. 20, 2024
Language: Английский
Citations
10Groundwater for Sustainable Development, Journal Year: 2024, Volume and Issue: 25, P. 101137 - 101137
Published: March 13, 2024
Groundwater resources in arid regions play a vital role meeting water demands; however, they are facing rapid depletion due to unsustainable exploitation practices, exacerbated by climate change. Floods can present unique opportunity for restoring groundwater levels and mitigating saltwater intrusion into aquifers. The use of properly managed floodwater aquifer recharge offers dual advantage maximizing the potential floods as valuable resource, while minimizing their negative impacts. In this work, we applied GIS-based Multi-Criteria Decision-Making (MCDM) method, namely Analytic Hierarchy Process (AHP), delineate flood susceptible zones Qatar, considering several influential topographical, hydrological, environmental, anthropological criteria. maps susceptibility were validated using recent flooding events existing wells data, respectively. Sensitivity analysis was conducted on both variables further assess accuracy. overlay two suggests that approximately 64% Qatar peninsula presents medium excellent suitability floodwater. areas best suited floodwater-based intervention northern coastal peninsula, urban southwestern area less suitable. This study provides decision-makers with spatially explicit information be targeted projects well recommendations technical, economic, regulatory considerations require additional investigation. approach employed effectively similar flood-prone is adaptable diverse contexts.
Language: Английский
Citations
9European Journal of Remote Sensing, Journal Year: 2023, Volume and Issue: 56(1)
Published: Sept. 5, 2023
The main objectives of this study are (1) to compare several machine learning models predict county-level corn yield in the area and (2) feasibility for in-season prediction. We acquired remotely sensed vegetation indices data from moderate resolution imaging spectroradiometer using Google Earth Engine (GEE). Vegetation a span 15 years (2006–2020) were processed downloaded GEE months corresponding crop growth (April–October). compared nine yield. Furthermore, we analyzed prediction performance top three models. results show that partial least square regression (PLSR) outperformed other by achieving highest training testing performance. area's PLSR, support vector (SVR) ridge regression. For prediction, SVR model performed comparatively well R2 = 0.875. can both (best 0.875) end-of-season 0.861) with satisfactory indicate remote sensing be used before harvest decent This provide useful insights terms food security early decision making related climate change impacts on security.
Language: Английский
Citations
21Scientific Reports, Journal Year: 2023, Volume and Issue: 13(1)
Published: Nov. 14, 2023
Satellite remote sensing is widely being used by the researchers and geospatial scientists due to its free data access for land observation agricultural activities monitoring. The world suffering from food shortages dramatic increase in population climate change. Various crop genotypes can survive harsh climatic conditions give more production with less disease infection. Remote play an essential role genotype identification using computer vision. In many studies, different objects, crops, cover classification done successfully, while still a gray area. Despite importance of planning, significant method has yet be developed detect varieties yield multispectral radiometer data. this study, three wheat (Aas-'2011', 'Miraj-'08', 'Punjnad-1) fields are prepared investigation radio meter band properties. Temporal (every 15 days height 10 feet covering 5 circle one scan) collected efficient Radio Meter (MSR5 five bands). Two hundred samples each acquired manually labeled accordingly training supervised machine learning models. To find strength features (five bands), Principle Component Analysis (PCA), Linear Discriminant (LDA), Nonlinear Discernment (NDA) performed besides models Extra Tree Classifier (ETC), Random Forest (RF), Support Vector Machine (SVM), Decision (DT), Logistic Regression (LR), k Nearest Neighbor (KNN) Artificial Neural Network (ANN) detailed configuration settings. ANN random forest algorithm have achieved approximately maximum accuracy 97% 96% on test dataset. It recommended that digital policymakers agriculture department use RF identify at farmer's research centers. These findings precision management specific optimized resource efficiency.
Language: Английский
Citations
20HydroResearch, Journal Year: 2024, Volume and Issue: unknown
Published: Sept. 1, 2024
Language: Английский
Citations
6Heliyon, Journal Year: 2023, Volume and Issue: 10(1), P. e23151 - e23151
Published: Dec. 13, 2023
Dengue is one of Pakistan's major health concerns. In this study, we aimed to advance our understanding the levels knowledge, attitudes, and practices (KAPs) in Fever (DF) hotspots. Initially, at-risk communities were systematically identified via a well-known spatial modeling technique, named, Kernel Density Estimation, which was later targeted for household-based cross-sectional survey KAPs. To collect data on sociodemographic KAPs, random sampling utilized (n = 385, 5 % margin error). Later, association different demographics (characteristics), attitude factors—potentially related poor preventive assessed using bivariate (individual) multivariable (model) logistic regression analyses. Most respondents (>90 %) fever as sign DF; headache (73.8 %), joint pain (64.4 muscular (50.9 behind eyes (41.8 bleeding (34.3 skin rash (36.1 relatively less. Regression results showed significant associations knowledge/attitude with practices; dengue vector (odds ratio [OR] 3.733, 95 confidence interval [CI ] 2.377–5.861; P < 0.001), DF symptoms (OR 3.088, CI 1.949–4.894; transmission 1.933, 1.265–2.956; 0.002), 3.813, 1.548–9.395; 0.004). Moreover, education level stronger analysis strongest independent factor (illiterate: adjusted OR 6.833, 2.979–15.672; 0.001) primary (adjusted 4.046, 1.997–8.199; 0.001). This situation highlights knowledge gaps within urban communities, particularly signs/symptoms. The also plays substantial role control, observed where more prevalent among illiterate less educated respondents.
Language: Английский
Citations
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