Barrier lake water level reservoir capacity relation calibration method

A water level and storage capacity technology, applied in image data processing, complex mathematical operations, instruments, etc., can solve problems such as blocking the normal flow of river water, loss of life and property in downstream areas, and collapse

Pending Publication Date: 2020-03-27
北京美科华仪科技有限公司
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  • Abstract
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  • Claims
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Problems solved by technology

[0002] The barrier lake is formed by landslides accumulating river channels. The barrier body formed blocks the normal flow of river water, thus forming a lake. The barrier body is not a...

Method used

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  • Barrier lake water level reservoir capacity relation calibration method
  • Barrier lake water level reservoir capacity relation calibration method
  • Barrier lake water level reservoir capacity relation calibration method

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Embodiment Construction

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] The object of the present invention is to provide a method for calibrating the relationship between water level and storage capacity of a barrier lake. By using this method, any point in the river channel collapses to form a barrier lake, and the corresponding water level and storage capacity of the barrier lake can be calculated based on the dem digital elevation data The curve can then be used to calculate and evaluate the size of the disaster and the ...

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Abstract

The invention discloses a barrier lake water level reservoir capacity relation calibration method. The method comprises four stepsof step 1, determining a drainage basin graph corresponding to a barrier lake occurrence point; step 2, cutting out a barrier lake ponding area dem from dem image data according to the drainage basin graph; step 3, making a plurality of equal straight faces at the outlet position of the dem drainage basin of the ponding area; and step 4, calculating accumulated water volumes corresponding to different elevations to obtain a water level reservoir capacity curve, andcalculating the water level reservoir capacity curve corresponding to the barrier lake according to dem digital elevation data when any point in the river collapses and the barrier lake is generated by applying the method, so that the disaster size and the escape time can be calculated and evaluated.

Description

technical field [0001] The invention relates to the technical field of hydrological forecasting, in particular to a method for determining the relationship between water level and storage capacity of a barrier lake. Background technique [0002] The barrier lake is formed by the accumulation of river channels by landslides. The barrier body formed blocks the normal flow of river water, thus forming a lake. The barrier body is not as strong as a dam and may collapse at any time. Once it collapses If the stagnant water is released violently, it will cause unforeseen loss of life and property in the downstream area. [0003] It can be seen that it is very necessary to analyze and budget the barrier lake. [0004] Using this method, if any point in the river collapses and a barrier lake is formed, the water level and storage capacity curve corresponding to the barrier lake can be calculated based on the dem digital elevation data, and then the size of the disaster and the escap...

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Application Information

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IPC IPC(8): G06F17/10G06T7/00G06T7/12G06T7/62
CPCG06F17/10G06T7/0002G06T7/12G06T7/62G06T2207/10032G06T2207/30181
Inventor 熊欹杜春辉胡余忠
Owner 北京美科华仪科技有限公司
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