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Method for acquiring sand horizontal moving flux in surface layer

A technology of horizontal transportation and acquisition method, which is applied in the field of formation dust monitoring to meet the needs of scientific research or business applications, reduce labor input, and obtain convenient and quick results

Active Publication Date: 2019-03-29
INST OF DESERT METEOROLOGY CMA URUMQI
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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for obtaining the horizontal transport flux of sand and dust near the ground layer, thereby solving the aforementioned problems in the prior art

Method used

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  • Method for acquiring sand horizontal moving flux in surface layer
  • Method for acquiring sand horizontal moving flux in surface layer
  • Method for acquiring sand horizontal moving flux in surface layer

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specific Embodiment

[0065] In this embodiment, the method provided by the present invention is used to estimate the sand dust horizontal transport flux in the hinterland of the Taklamakan Desert, and the implementation process is carried out according to the following steps:

[0066] Step 1. Use the gradient sand collector to measure the horizontal dust transport flux near the surface in the hinterland of the Taklimakan Desert. The frequency of data collection is once for each dust weather process, and 16 sets of data are collected (see Table 1). Then use each set of data to fit the formula (1) to determine the parameters a and b:

[0067] q(z)=a(z) b (1)

[0068] The fitting process and results can be found in image 3 , the values ​​of parameters a and b can be found in Table 1, where R 2 =0.9968, it can be seen that the horizontal dust transport flux in the near-surface layer varies with height very well in line with the power function distribution.

[0069] Table 1 Data sampling time per...

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Abstract

The invention discloses a method for acquiring the sand horizontal moving flux in the surface layer, and relates to the technical field of stratum sand monitoring. According to the method, the numberof the sand moving in the surface layer is measured in real time, fully automatically, and continuously by a Sensit piezoelectric wind erosion sensor, so that the total number of the sand moving in the surface layer in any sampling time period can be obtained. By establishing a linear relation between the sand horizontal moving flux in the surface layer and the total number of the sand moving in the surface layer in the same time period, and utilizing the linear relation and the total number of the sand moving in the surface layer in any sampling time period, the sand horizontal moving flux inthe surface layer of any measurement time step in a certain area can be rapid estimated. Therefore, the acquisition of the sand horizontal moving flux parameter in the surface layer of a certain areais more convenient and rapid. Compared with the acquisition method in the prior art, the labor cost can be greatly reduced; the sand horizontal moving flux data in the surface layer can be acquired in a higher frequency; and the requirement for scientific research or business application is met.

Description

technical field [0001] The invention relates to the technical field of formation sand and dust monitoring, in particular to a method for acquiring the horizontal transmission flux of sand and dust near the formation. Background technique [0002] Sand movement and dust weather are common surface processes in arid and semi-arid regions of the world. Its impact on weather and climate, ecological environment, human health and social production cannot be ignored, and it has always been a hot issue of concern to human society. The horizontal dust transport flux near the surface layer is one of the key parameters in the study of wind-sand movement and sand-dust weather. Reference, and determine the results of sand and dust weather numerical forecast models. At present, the main problems in the measurement or acquisition of the horizontal dust transport flux near the surface are as follows: ①Measure the sand dust horizontal transport flux at different height points with a gradien...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01W1/00G01N15/10
CPCG01N15/1031G01W1/00
Inventor 杨兴华杨帆买买提艾力·买买提依明周成龙霍文何清
Owner INST OF DESERT METEOROLOGY CMA URUMQI
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