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A Calculation Method of Suspended Sediment Transport in Rivers Lacking Hydrological Data

A technology of hydrological data and calculation method, which is applied in the calculation of suspended sediment load of rivers lacking in hydrological data, and in the field of calculation of suspended sediment load of rivers, which can solve rough errors and do not consider the sediment content of the underlying surface Correction and other problems, to achieve high-precision results

Active Publication Date: 2021-11-16
BUREAU OF HYDROLOGY CHANGJIANG WATER RESOURCES COMMISSION
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  • Application Information

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Problems solved by technology

[0003] However, due to It is mainly drawn from the calculated data of the suspended sediment transport modulus of the existing hydrological stations, without considering the characteristics of the underlying surface such as the vegetation and soil in the watershed, and the correction of the sediment content, which is rough and has a large error

Method used

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  • A Calculation Method of Suspended Sediment Transport in Rivers Lacking Hydrological Data
  • A Calculation Method of Suspended Sediment Transport in Rivers Lacking Hydrological Data
  • A Calculation Method of Suspended Sediment Transport in Rivers Lacking Hydrological Data

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Embodiment

[0042] (1) Acquisition of basic data of the basin above the river section to be calculated

[0043] According to the conditions of the watershed above the cross section of the selected river to be calculated, measure or collect watershed characteristic parameters such as the area of ​​the watershed above the cross section, river length, slope, etc., collect data such as topography, landform, soil vegetation, hydrometeorology, etc., and calculate or collect erosion modulus above the cross section .

[0044] (2) Selection of reference hydrological stations in similar watersheds

[0045] In the vicinity of the river to be calculated, select the basin above the section of the river to be calculated to be similar in topography, landform, soil vegetation, and precipitation characteristics, and the hydrological station has complete observation data of suspended sediment, and the area is not much different. The basin is selected as a similar basin; Or if there are hydrometric station...

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Abstract

The invention discloses a method for calculating the suspended mass and sediment load of rivers lacking hydrological data. The calculation method includes 1) selecting the calculation results of the suspended mass and sediment load of a hydrological station in a similar watershed; 2) using the erosion modulus and area Double-weight correction method; 3) Deduce the suspended sediment load of rivers lacking hydrological data. Through this method, different factors such as vegetation, soil, and morphology of the watershed can be considered, and the maximum and accurate calculation of the suspended sediment load of rivers lacking hydrological data is higher and more realistic.

Description

technical field [0001] The invention relates to a method for calculating the amount of suspended sediment transported by rivers, in particular to a method for calculating the amount of suspended sediment transported by rivers lacking hydrological data, and belongs to the technical field of hydrological calculations. Background technique [0002] Calculation of suspended sediment load is the basis of water conservancy and hydropower engineering design, which directly affects the normal operation of the designed project. Generally speaking, the routine calculation of suspended sediment load adopts the serial statistics of suspended sediment load at hydrometric stations: when the actual data of suspended sediment load is insufficient, the interpolation between the suspended sediment load and runoff is used to prolong the Re-statistics; when runoff and suspended sediment data are lacking, the multi-year average erosion modulus of suspended sediment published in the hydrological ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/18G06Q50/06
CPCG06F17/18G06Q50/06
Inventor 熊明
Owner BUREAU OF HYDROLOGY CHANGJIANG WATER RESOURCES COMMISSION