Results 41 to 50 of about 654 (175)

On the Accuracy of Particle Image Velocimetry with Citizen Videos—Five Typical Case Studies

open access: yesHydrology, 2022
The application of image velocimetry to measure surface streamflow velocities requires meticulous preparation, including surveying and securing both the existence of floating features on the water surface, and, as in every hydrometry method, appropriate ...
Evangelos Rozos   +2 more
doaj   +1 more source

Rapid rating curve uncertainty estimation using hydraulic modeling: use of UAV-derived data and impacts of gauging strategies on uncertainty in hydrological signatures

open access: yesFrontiers in Water
The rapid development of UAV-based river surveying is creating new opportunities to efficiently survey river reaches and collect high-resolution topographic, hydraulic, and surface velocity data for hydraulic rating-curve modeling and discharge ...
Ida K. Westerberg   +10 more
doaj   +1 more source

Hydrochemical evaluation of river water quality—a case study: Horroud River

open access: yesApplied Water Science, 2017
Surface waters, especially rivers are the most important sources of water supply for drinking and agricultural purposes. Water with desirable quality is necessary for human life.
Fatemeh Falah, Ali Haghizadeh
doaj   +1 more source

Assessment of Temporal and Spatial Variations of Excess Water in Some Watersheds the ProvinceofArdabil [PDF]

open access: yesپژوهش‌های آبخیزداری, 2019
Assessment of quantitative variationsof the surface water resources in the temporaland spatial scale in some watersheds the province of Ardabil will provide the possibility of balancing and optimal allocationof water resources in the current and future ...
Raoof Mostafazadeh   +3 more
doaj   +1 more source

Combining UAS LiDAR, Sonar, and Radar Altimetry for River Hydraulic Characterization

open access: yesDrones
Accurate river hydraulic characterization is fundamental to assess flood risk, parametrize flood forecasting models, and develop river maintenance workflows.
Monica Coppo Frias   +6 more
doaj   +1 more source

Integration of spatial datasets to support the review of hydrometric networks and the identification of representative catchments [PDF]

open access: yesHydrology and Earth System Sciences, 2004
The rapidly growing demand for river flow data has increased pressure on hydrometric monitoring programmes to match a wide range of application-focused information needs, in particular, the identification of representative catchments.
C. L. R. Laize, C. L. R. Laize
doaj  

Développement d’outils pour la quantification des incertitudes des données hydrométriques

open access: yesLHB Hydroscience Journal
La quantification des incertitudes des données hydrométriques (mesure de débit des cours d’eau) est reconnue comme indispensable mais sa mise en œuvre pratique nécessite un ensemble d’outils adaptés au traitement des mesures sur l’ensemble d’une chaîne ...
Jérôme Le Coz   +8 more
doaj   +1 more source

Investigation of Semi-Empirical Model of Unsaturated Hydraulic Conductivity Based on Some Measurable Physical Soil Properties, Case Study: Baghin Plain, Kerman [PDF]

open access: yesمهندسی منابع آب, 2013
Unsaturated hydraulic conductivity is one of the basic properties of soil that governs the water movement in the field. As application of any of the various available methods in the field deemed impracticable due to its difficulty of implication and high
A. Neshat, M. Farhad
doaj  

International Symposium on Hydrometry

open access: yesEos, Transactions American Geophysical Union, 1970
Approximately 520 engineers and scientists from 55 countries attended the International Symposium on Hydrometry held at Koblenz, Federal Republic of Germany, from September 13 through 22, 1970. The symposium was convened by Uhesco and organized in cooperation with the World Meteorological Organizations (WMO), Unesco, the National Committee for the ...
openaire   +1 more source

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