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35 results about "Water remote sensing" patented technology
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Water Remote Sensing studies the color of water through the observation of the spectrum of water leaving radiation. From the study of this spectrum, the concentration of optically active components of the upper layer of the water body can be concluded via specific algorithms. Water quality monitoring by remote sensing and close-range instruments has obtained considerable attention since the founding of EU Water Framework Directive.
Method and system for monitoring water level of inland water body based on height difference data of height measurement satellite
The invention discloses an inland water level monitoring method and system based on altimetry satellite altitude difference data, and the method comprises the steps: obtaining a target water remote sensing image and an altimetry satellite data set, and carrying out the superposition selection of altimetry data points completely falling into the surface of a water body; the height measurement data points are preprocessed, height difference data are obtained, and after preset conditions are supplemented, a water level change time sequence is obtained through least square adjustment calculation; the system correspondingly implements the method. The height difference data are obtained through the intersection point method or the overlapped trajectory method, the geoid model residual error is offset, the problem of height errors caused by the spatial position in a traditional method is solved, and the water level monitoring accuracy is improved.
Owner:SUZHOU UNIV OF SCI & TECH