Characteristics of the wind energy environment and sediment transport potential in the Ten Tributaries in up Reaches of the Yellow River Basin
The characteristics of wind regime and sediment transport potential are crucial for characterizing the wind energy environment in desert areas and studying aeolian sand movement.The wind patterns and sediment transport potential of the Ten Tributaries in the Yellow River Basin were investigated by analyzing meteorological station data from 2018 to 2022,aiming to understand their energy characteristics and environmental impacts.The results show that:(1)There is minimal variation in wind velocity between 2018 and 2022,with an annual mean wind speed of 3.17 m·s-1 and a yearly average sand-driving wind speed of 6.28 m·s-1.The polarization pattern of sand-driving winds across different seasons is evident,with the highest frequency occurring during spring,while inter-monthly wind speeds exhibit significant fluctuations due to seasonal changes.(2)The intensity of wind en-ergy varies,with higher intensity observed towards the western regions and lower intensity towards the eastern areas in the Ten Tributaries,due to the influence of topography and elevation.Prevailing sand-driving winds pre-dominantly originate from westerly and northerly directions across different temporal scales.(3)Based on the sediment transport potential,the Ten Tributaries are classified as having a moderate overall wind energy environ-ment.The western region,which is located in close proximity to the Hobq Desert,falls within the high wind en-ergy region;the central region falls within the moderate wind energy region;and the eastern region falls within the low wind energy region.The characteristics of sediment transport potential vary across different time scales;however,the overall direction of resultant sediment transport potential consistently remains oriented towards the southeast(SE)and south-southeast(SSE),ensuring sufficient momentum for sediments to enter the channel.Therefore,it is suggested that spring should be considered the key control period for wind-blown sand,and the western region near the source of sand should be regarded as the key control area.
Yellow River Basinwind energy environmentwind conditionssediment transport potentialTen Tributaries
NETL
NSTL
万方数据
