"A Method for Measuring Near-Surface Sand Flow in a High Sand Transport Area"
March 26 04:07:11, 2024
[China Instrument Network Instrument R&D] On July 11th, a method for the observation of near-surface winds and sands in a high-sand-feeding area was invented by a researcher from the Institute of Ecology and Geography, Chinese Academy of Sciences, Wang Haifeng, Ph.D., and other researchers. Patent number: ZL201510714754.8).
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Sandy desertification is the main type of desertification. The area of ​​desert and desertification land in China is as high as 1.49 million square kilometers, accounting for 15.5% of the country's land area. It is the country with the most serious desertification in the world. Wind hazard is the main form of environmental disaster in the sand area. The sand in the sand flow has a great destructive effect on transportation facilities and communication transmission. Therefore, systematic monitoring and scientific research on wind-sand activities is an important basis for desertification prevention and control. Increasing the monitoring efficiency and observation accuracy is currently the main issue.
The method for the observation of near-surface wind and sand currents in high-sand-sand flux areas involves large-capacity sand traps consisting of sand storage tanks, first connectors, second connectors, sand-conducting pipes, sand-intake pipes, ventilation pipes, and ventilation. The net is composed of sand and sand flowing from the sand inlet to the sand storage tank through the sand discharging pipe, and the air overflows from the air pipe. Using multiple sand traps, winds and sand streams with different wind directions and different height ranges can be collected separately.
The sand trap of the invention has large space for sand storage, convenient loading and unloading, and continuous observation for a long time. The combined observation of clusters can fully understand the sand transport characteristics of the regional sand flow and provide the near-surface wind and sand flow observation in the large-flux sand flux area. An applicable observation method can greatly reduce the labor intensity of sandstorm observation in the field and improve the observation accuracy.
(Original title: Xinjiang Meteorological Institute invents a near-surface wind flow observation method for high-sand flux area)
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