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Water depth inversion from satellite dataset
2014 IEEE Geoscience and Remote Sensing Symposium, 2014Within an effort to estimate near-shore bathymetry from satellite scenes, a method based on wave celerity and wavelength estimation is developed. These wave characteristics are extracted from SPOT-5 panchromatic and multispectral scenes. The method allows us to associate the wavelength and the celerity of the same detected wave and to estimate the ...
Adrien Poupardin +3 more
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2009
Water is a precious resource in many parts of the world and many people rely on water tanks to supplement their water supply by storing collected rainwater or water pumped from a well or bore. But how do you measure how full a tank is? Tanks are constructed of opaque material to prevent algae growth and are often kept closed up to prevent mosquito ...
Jonathan Oxer, Hugh Blemings
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Water is a precious resource in many parts of the world and many people rely on water tanks to supplement their water supply by storing collected rainwater or water pumped from a well or bore. But how do you measure how full a tank is? Tanks are constructed of opaque material to prevent algae growth and are often kept closed up to prevent mosquito ...
Jonathan Oxer, Hugh Blemings
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Apparatus for measuring water depth
The Journal of the Acoustical Society of America, 1979An apparatus for measuring water depth comprising a range discrimination circuitry and an indication circuitry. The range discrimination circuitry includes a unit pulse generator, digital counters and digital gates. The indication circuitry includes a latch circuit, BCD-to-decimal decoders and indication lamps.
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A depth-dependent formula for shallow water propagation
The Journal of the Acoustical Society of America, 2014In shallow water propagation, the sound field depends on the proximity of the receiver to the sea surface, the seabed, the source depth, and the complementary source depth. While normal mode theory can predict this depth dependence, it can be computationally intensive. In this work, an analytical solution is derived in terms of the Faddeeva function by
Sertlek, H.O., Ainslie, M.A.
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Water Wave Packets Over Variable Depth
Studies in Applied Mathematics, 2011In this paper, we develop higher‐order nonlinear Schrödinger equations with variable coefficients to describe how a water wave packet will deform and eventually be destroyed as it propagates shoreward from deep to shallow water. It is well‐known that in the framework of the usual nonlinear Schrödinger equations, a wave packet can only exist in deep ...
Grimshaw, R. H. J., Annenkov, S. Y.
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Polarization lidar for shallow water depth measurement
Applied Optics, 2010A bathymetric, polarization lidar system transmitting at 532 nm and using a single photomultiplier tube is employed for applications of shallow water depth measurement. The technique exploits polarization attributes of the probed water body to isolate surface and floor returns, enabling constant fraction detection schemes to determine depth.
Steven, Mitchell +2 more
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Waves on Water of Variable Depth
1977Summary.- Some classical water-wave problems in varying depth.- Linear transport methods for long surface waves in canals, bays and oceans.- Diffraction of gravity waves by ray methods.- Experimental studies of wave refraction.- Summary.- Survey of theoretical research into tsunamis and observations of actual tsunamis in Japan.- Numerical simulation of
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Water Depth Determination Using Mathematical Morphology
1996Rapid determination of water depth near coastal areas is a practical problem of interest to Navy oceanographers and ships. Variations in depth both perpendicular and parallel to the shore are sought. Our aim is to create a semi-automated system for processing time sequences of remotely sensed images of wave crests to determine water depth.
Suzanne M. Lea +2 more
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Water-film depth assessment for pavements of roads and airport runways: A review
Construction and Building Materials, 2023Jianming Ling, Jiake Zhang
exaly