Surface water detection challenges for rivers
Automating surface water detection for rivers : the estimation of the geometry of rivers based on optical earth observation sensors
... detect surface water within a multispectral satellite image, water indices (both MNDWI and NDWI) have been utilized, followed by a HAND-map and an image thresholding approach (Otsu’s ...a ...
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Sustainable water management- Interlinking of rivers and challenges before India
... capita water availability for 220 million water hungry ...additional water for irrigation and to eventually even out the precarious swings between floods and ...from water surplus to ...
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A review of methods for measuring groundwater–surface water exchange in braided rivers
... braided rivers internation- ally to characterise groundwater–surface water interactions, as well as recommendations for new methods that can be applied in this type of river ...braided rivers ...
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WATER QUALITY OF SURFACE WATER BODIES AND ANTIMICROBIAL SUSCEPTIBILITY PATTERN OF PSEUDOMONAS SPECIES IN RIVERS STATE, NIGERIA
... economic significance and the frequency of human activities around the rivers were considered in selection. The Mgboshimini river located in Mgboshimini community, is predominantly fishing site and it also serves ...
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FRESH SURFACE WATER Vol. I - Origin, Resources and Distribution of Rivers and Streams - I.A.Shiklomanov
... of surface and subsurface water ...large rivers as subsurface ...in rivers in karst regions; higher runoff, however, is observed during periods of low surface water discharge in ...
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Aerial and surface rivers: downwind impacts on water availability from land use changes in Amazonia
... fluence water availability (Henderson-Sellers et ...the water regime in some areas can be more sensitive to land use change than ...Indeed, water regime changes are also experienced by the downwind ...
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Surface water characterization of three rivers in the Pb/Zn mining region of north-eastern Macedonia
... higher water discharge has resulted in the concentration increase of elements sequestered in the sediment, such as Cd and Pb, as often reported for trace elements in the river water (Neal et ...the ...
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Challenges of poor surface water drainage and wastewater management in refugee camps
... of surface water drainage and to a lesser extent wastewater ...drinking water and wastewater management have become difficult in the refugee camps across the ...of water-related diseases in ...
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Detection Of Surface Water Leakage Through Limestone Cracks, Using Near Surface Geophysical Techniques.
... Impulse Response (FIR) Filter is a band pass filter in time domain, Averaging Filter to suppress noise and smooth the image, and Moving Average Filter, which is applied to retain non–horizontal structures and remove ...
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Statistical Change Detection in Water Cycle over Two Decades and Assessment of Impact of Urbanization on Surface and Sub Surface Water Flows
... Natural drainages have been replaced by human struc- tures, or reengineered for human purposes. Human land use activities have imposed significant influences on wa- tershed processes. The activities proposed or going on ...
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Comparison between results of different methods of determination of water surface elevation in tidal rivers and determination of the best method
... fresh water discharge, pumping rate, seawater volume into the aquifer and river, ...of water surface elevation in tidal rivers while other researches only considered a method for determination ...
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Changes in Surface Water Physico-Chemical Parameters following the Dredging of Otamiri and Nworie Rivers, Imo State of Nigeria
... Sampling and Sample Storage: For the purpose of this study, five (5) sample stations 1, 2, 3, 4 and 5 were established on the Rivers, (7 o 2E, 5 o 27N). Station 1 at reservoir base area and it serves as control. ...
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Global health concern of cyanotoxins in surface water and its various detection methods
... in surface water, which instigates health-associated stake among human, aquatic, domestic, and wild ...from surface water, some of the traditional methods like filtration, screening, and ...
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Detection of Changes in Surface Water Bodies Urban Area with NDWI and MNDWI Methods
... Land surface water bodies, an essential part of the Earth’s water cycle such as rivers, lakes, swamp, and reservoirs, influence the global ecosystem and climate global ...urban surface ...
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Detection of River Pollution Using Water Quality Index: A Case Study of Tropical Rivers in Penang Island, Malaysia
... selected rivers in Penang Island where S1 = upstream, S2 = middle stream and S3 = down- ...bottle. Water samples were stored cold in an icebox to minimize microbial activity which may have affected the ...
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Phosphorus and emerging micro-pollutants in surface waters: challenges and prospects for water quality improvement
... c) flooding and erosion can also cause major degradation of water quality – this though is only an episodic threat. Phosphorus, being the eutrophication-limiting nutrient in most fresh and coastal waters, is ...
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Detection of Virulence Genes Tcpa and Ctxb in Isolates from Surface Water and Salt Water Samples in Golestan, Iran
... Methods: Overall, 115 water samples were collected from the Caspian Sea coast, lagoons and rivers in the Golestan Province. The samples were filtered by membrane filtration method, and enriched in alkaline ...
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Surface water quality
... CONTEMPORARY CHALLENGES De-icing agents and diffuse pollution In cold regions, highway authorities often undertake preventative measures to avoid road icing in ...and surface waters used for drinking supply ...
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Greater Water Surface Variability Revealed by New Congo River Field Data: Implications for Satellite Altimetry Measurements of Large Rivers
... of surface water along the world's large river channel systems is of major ...and water surface elevation are combined with satellite measurements to characterize this ...of water ...
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Defect Detection Using Quasi Scholte Wave for Plate Loaded with Water on Single Surface
... and water for the three fd values200 kHz mm, 400 kHz mm, and 800 kHz ...free surface of a plate, from which the ultrasonic wave is generated and detect- ...
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