微尺度山地近地表风速模拟

The Simulation of Near-surface Wind Speed on Micro-scaleIn Mountain areas

本论文采用正交试验设计风速采样方案,对研究区采样点风速进行采样,利用三阶趋势面插值、反距离加权插值、规则样条插值方法对采样数据进行模拟,通过分析比较,结果表明三次趋势面插值效果较差,模拟值比实测数据值偏小;规则样条插值和IDW插值的模拟值在采样点较少的区域与实际测量值相差较大,模拟效果一般,模拟结果反映山地近地表风速的部分分布特征,迎风坡、背风坡风速差异,海拔对风速的影响。影响山地近地表风速的因素很多,如地形、温度、植被等。这些问题有待进一步研究。

This paper by using orthogonal experimental design sampling points.Average near-surface wind speed are simulated by use of methods like cubic trend surface interpolation,spatial regression analysis,IDW interpolation and regularized splines interpolation,the result is analyzed and compared,the research result shows that the cubic trend surface interpolation is less effective,simulated valueis smaller than the measured data;the gaps between simulation values of regularized splines interpolation and IDW interpolation values in the area with less sampling points and values of actual measurement are significant,simulation result is fair,the simulation result basically reflects distributional characteristics of near-surface wind speed in hilly area,the wind speed varies in windward and leeward,and the elevation has an impact on the wind speed.There are many factors affecting the near-surface wind speed in the hilly area like terrain,temperature and vegetation etc,.These issues need to be further studied.