Self-metering monitoring method for sand transport of near surface sand-driving wind

Abstract

The invention relates to a self-metering monitoring method for sand transport of near surface sand-driving wind. The method relates to the following devices: a sand sampler, a sand storage and weighing unit, a sand surface protector, a solar power supply device and a data acquisition unit. The method comprises the following steps: the sand storage and weighing unit is buried below the ground surface, the sand sampler is installed on the ground surface, and the sand sampler is connected with the sand storage and weighing unit; as the sand sampler rotates with the wind, the captured sand is collected and led into the sand storage and weighing unit, and weighed by an electronic balance; the solar power supply device provides working power for the sand sampler, the sand storage and weighing unit and the data acquisition unit; and the data acquisition unit stores accumulative weighing data and time, and imports the data into a computer or remotely transmits the data by a remote communication system, thereby realizing self-metering monitoring of the sand transport of near surface sand-driving wind. Under the unmanned conditions of the extreme environment in the field, the invention can realize fixed-point observation on sand-driving wind in all weather, has the advantage of long time period for continuous observation, and can greatly reduce the labor intensity in the field.

Description

technical field [0001] The invention relates to an instrument for monitoring the amount of sand and dust in the atmospheric environment, in particular to a self-monitoring method for monitoring sand transport by wind and sand flow near the surface. Background technique [0002] The sand transport flux of wind-blown sand flow near the surface is a parameter that must be considered in the study of the law of wind-blown sand movement and the engineering design of sandy areas. [0003] The commonly used sand flow monitoring method is the direct capture method, and the tools used are various types of sand collectors. The emerging sand flow monitoring method is an indirect measurement method, which inverts the amount of sand transport by calculating the vibration induction energy generated by the collision of sand particles on the wind erosion probe. The sand collector needs to collect and weigh the sand particles in the sand flow, which exposes the shortcomings of the sand colle...

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