[1] Water mass formation in the intermediate and deep layers of the Okinawa Trough is investigated using two distinct data sets: a quasi-climatological data set of the water properties of the minimum salinity surface produced from Argo float profiles and historical CTD data, and a velocity data set in the Kerama Gap measured by moored current meters during June 2009 to June 2011. The formation ...

Abstract At present, the model of heterogeneous fluid production in horizontal wells bottom water reservoirs does not comprehensively consider influence parameters such as flow, length, and position each section, resulting distortion interpretation results. Using Green function Newman product method, this paper derives heavy oil reservoir. The Stehfest numerical inversion algorithm was used to ...

We report the generation of large coherent vortices via inverse energy cascade in Faraday wave driven turbulence. The motion of floaters in the Faraday waves is three dimensional, but its horizontal velocity fluctuations show unexpected similarity with two-dimensional turbulence. The inverse cascade is detected by measuring frequency spectra of the Lagrangian velocity, and it is confirmed by co...

When recorded on an horizontal array, the acoustic intensity of a broadband source presents a striation pattern due to interferences between modes. This pattern is a robust feature of waveguide propagation and is described by a scalar parameter called waveguide invariant. In classical shallow water configurations, this invariant is close to 1 and has been used to perform source localization or ...

[1] Many lakes show vertical stratification of their water masses, at least for some extended time periods. Density differences in water bodies facilitate an evolution of chemical differences with many consequences for living organisms in lakes. Temperature and dissolved substances contribute to density differences in water. The atmosphere imposes a temperature signal on the lake surface. As a ...

One of Hungary's strategic water sectors is the supply drinking water, which relies heavily on so-called riverbank filtration systems. About 35-40% national comes from filtered aquifers. Today in Hungary, 40% population; nearly four million people's daily needs are met In future, 75% our sources will be bank-filtered, means that they also great importance for future resource management. The mai...

Among the techniques for capturing nearby groundwater, covered horizontal well (draining gallery) stands out in its different types of water mine, qanat, and cimbre. The collected by these means is used to supply people livestock, irrigation, movement hydraulic devices, etc. Because they are carried surface gravity (without need energy) because only recharging groundwater table that takes place...