Results 21 to 30 of about 2,070 (244)

La mesure de débit par dilution – Quel avenir pour cette technique ?

open access: yesLHB Hydroscience Journal, 2022
Selon les résultats d’une enquête menée en 2017 auprès des gestionnaires de réseaux hydrométriques français, 1 % de leur activité de jaugeage est effectuée par la méthode de dilution.
Christian Lallement   +3 more
doaj   +1 more source

Stage Monitoring in Turbid Reservoirs with an Inclined Terrestrial Near-Infrared Lidar

open access: yesRemote Sensing, 2016
To monitor the stage in turbid reservoirs with a sloping bank, it has been proposed to install a near-infrared Lidar on the bank and to orient it so that it points at the water surface with a large incidence angle (between ≈ 30° and 70°).
Serge Tamari   +4 more
doaj   +1 more source

Steponas Kolupaila's contribution to hydrological science development [PDF]

open access: yesHistory of Geo- and Space Sciences, 2017
Steponas Kolupaila (1892–1964) was an important figure in 20th century hydrology and one of the pioneers of scientific water gauging in Europe. His research on the reliability of hydrological data and measurement methods was particularly important
G. Valiuškevičius
doaj   +1 more source

Determination of extracellular fluid volume in healthy and azotemic cats [PDF]

open access: yes, 2015
BACKGROUND: Methods for determining extracellular fluid volume (ECFV) are important clinically for cats. Bromide dilution has been studied in cats to estimate ECFV. Markers of GFR also distribute in ECFV and can be used for its measurement.
Back   +26 more
core   +2 more sources

Insights into rainfall undercatch for differing raingauge rim heights

open access: yesHydrology Research, 2019
The measurement of rainfall has a long history, but despite its apparent simplicity it is difficult to quantify accurately. The common installation of raingauges with rims above the ground surface results in a difference between the rainfall caught and ...
Katie Muchan, Harry Dixon
doaj   +1 more source

Fuzzy clustering and distributed model for streamflow estimation in ungauged watersheds

open access: yesScientific Reports, 2021
This paper proposes a regionalization method for streamflow prediction in ungauged watersheds in the 7461 km2 area above the Gharehsoo Hydrometry Station in the Ardabil Province, in the north of Iran.
Amirhosein Mosavi   +6 more
doaj   +1 more source

An Experimental Study for Swelling Effect on Repairing of Cracks in Fine-Grained Clayey Soils

open access: yesApplied Sciences, 2022
Earth-dam failure starts with cracking in the clay core, and this cracking is not easy to detect and prevent. Therefore, swellable clay is a feasible solution, which helps to close the cracks automatically based on the self-healing process. The presented
Mahdi Nikbakht   +5 more
doaj   +1 more source

Geological permeability controls streamflow generation in a remote, ungauged, semi-arid drainage system

open access: yesJournal of Hydrology: Regional Studies, 2021
Study region: A semi-arid drainage system overlying a thick (12 km) sedimentary sequence on the Dampier Peninsula in northwestern Australia. Study focus: In this study we combine aerial geophysics, geological mapping, hydrometry and hydrochemistry with ...
Sarah A. Bourke   +4 more
doaj   +1 more source

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

Some challenges in hydrometry [PDF]

open access: yesLa Houille Blanche, 2014
Hydrometry has always been an important branch in hydrology. Even so, the quality of streamflow data might not have evolved in accordance with the advances in hydrological sciences. A too large uncertainty in published data is still a challenge in hydrometry. Hydrometric field work is a diverse profession.
openaire   +1 more source

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