Optimizing Site Selection for Construction: Integrating GIS Modeling, Geophysical, Geotechnical, and Geomorphological Data Using the Analytic Hierarchy Process

ISPRS International Journal of Geo-Information, Journal Year: 2024, Volume and Issue: 14(1), P. 3 - 3

Published: Dec. 25, 2024

Identifying suitable sites for urban, industrial, and tourist development is important, especially in areas with increasing population limited land availability. Kharga Oasis, Egypt, stands out as a promising area such development, which can help reduce overcrowding the Nile Valley Delta. However, soil various environmental factors affect suitability of civil engineering projects. This study used Geographic Information Systems (GISs) multi-criteria decision-making approach to assess Oasis construction activities. Geotechnical parameters were obtained from seismic velocity data, including Poisson’s ratio, stress concentration index, material N-value, foundation-bearing capacity. A comprehensive analysis situ laboratory-based geological geotechnical data 24 boreholes examined plasticity, water content, unconfined compressive strength, consolidation parameters. By integrating geotechnical, geomorphological, geological, environmental, field detailed site map was created using analytic hierarchy process develop weighted GIS model that accounts numerous elements influencing project design construction. The results highlight within area, high very classes covering 56.87% land, moderate representing 27.61%, unsuitable 15.53%. It should be noted many settlements exist highly vulnerable areas, emphasizing importance this study. identifies geoenvironmental hazards, allowing early at beginning planning reducing waste effort. applied does not only but, additionally, it provides reproducible method efficiently assessing use other regions similar conditions around world.

Language: Английский

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Analysis of the Multi-Dimensional Characteristics of City Weather Forecast Page Views and the Spatiotemporal Characteristics of Meteorological Disaster Warnings in China

Atmosphere, Journal Year: 2024, Volume and Issue: 15(5), P. 615 - 615

Published: May 20, 2024

In order to provide insights into how various page views are influenced by public engagement with weather information and shed light on the patterns of warning issuance across different seasons regions, this study analyzes multi-dimensional characteristics city forecast spatiotemporal early in China, from 1 March 2020 31 August 2023. This is achieved utilizing daily forecasts meteorological data, comparing public’s attention during holidays versus regular days, assessing under levels, performing statistical analysis scale disasters. Our shows that compared weekends holidays, pays more weekdays, difference between weekdays national statutory significant. Due widespread impact heat waves, typhoons, severe convective weather, geological disasters caused heavy rainfall, awareness participation flood season forecasting have significantly increased. Under red alerts, flash floods, risks primary concerns. Orange alerts predominantly feature rainstorms, snowstorms, cold while sandstorms attract most yellow alerts. Droughts, however, receive relatively less regardless level. Seasonal warnings reveal a peak summer, particularly typhoons rainstorms being main concerns July, followed high temperatures additional typhoon August. Heavy sea surface wind exhibit strong seasonal trend, majority issued winter months. Regionally, southern China experiences highest frequency convection warnings, provinces such as Jiangxi, Guangxi, Hunan affected.

Language: Английский

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Cost-Benefit Analysis of Minor Irrigation Tank Rehabilitation Using Run-Off and Storage Capacity: A Case Study from Ambuliyar Sub-Basin, Tamil Nadu, India

GeoHazards, Journal Year: 2024, Volume and Issue: 5(2), P. 441 - 456

Published: May 20, 2024

This research examines the significance of restoring efficient water management systems in India’s semiarid environment, with special emphasis on role traditional irrigation structures, such as tanks, collecting and storing limited resources. Assessing benefits any restoration program, especially when socioeconomic environmental are involved, is challenging. In context tank rehabilitation, a cost-benefit analysis will be conducted regarding economic ecological returns post-desiltation phase. Since process requires significant investment, assessing project’s viability during planning stage better. The present study proposes novel method to indirectly analyse by correlating run-off storage capacity tanks before Ambuliyar sub-basin, which covers an area 930 square kilometres Tamil Nadu, India, comprising 181 (water bodies) varying sizes shapes, was taken for this study. employed Soil Conservation Service Curve Number (SCS-CN) method, incorporating factors soil type, land cover, use practices, advanced remote sensing Geographic Information System (GIS) tools simulate surface run-off. Run-off volume were compared all seasons at micro-watershed level. results demonstrated that each significantly exceeded across seasons. Even summer, volumes considerably higher than capacity. findings suggest can effectively store fulfil agricultural other essential needs throughout year, thereby improving local rural economy. also highlights need periodic maintenance rehabilitation these retain their functionality.

Language: Английский

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Hydrological Modeling of Stream Drainage Basins: A Case Study on the Magyaregregy Experimental Catchment in Hungary

Water, Journal Year: 2024, Volume and Issue: 16(24), P. 3629 - 3629

Published: Dec. 17, 2024

This paper presents the field measurements, observations, and numerical simulations conducted for a case study of Magyaregregy experimental catchment in Hungary. Field measurements included determination surface runoff infiltration intensity on an plot hydrograph that assessed ratio between subsurface runoff. Soil moisture both during experiments throughout catchments gave valuable information regarding this critical parameter. A digital terrain model aforementioned allowed establishment using HEC-HMS 4.3 process. Although calibration process was straightforward, considerable difficulties were encountered validation. While procedure appropriate values most calibrated parameters, it did not provide proper initial conditions. As possible solution, validation period preceded by simulation relatively long time duration to gain Finally, hydrological model’s reproduced measured base flow, as well maximum discharges. Furthermore, use composite-corrected radar data precipitation proved be somewhat unreliable. supports principle from remote sensing (e.g., data) should used with utmost care deliberation input models.

Language: Английский

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