本文選題：空氣動力學(xué)粗糙度　切入點：估算方法　出處：《科技通報》2016年08期

【摘要】：利用2010年館陶站和阿柔站渦動相關(guān)儀和自動氣象觀測資料,運用Yang et al.方法估算空氣動力學(xué)粗糙度,分析了空氣動力學(xué)粗糙度的時空變化特征,并將估算值與Brutsaert、Monteith、Zeng andWang、Bastiaanssen and Bandara、Teixeira五種參數(shù)化方案進(jìn)行比較。結(jié)果表明:(1)空氣動力學(xué)粗糙度與風(fēng)向的關(guān)系取決于下墊面的非均勻程度;農(nóng)田下墊面的空氣動力學(xué)粗糙度隨風(fēng)向變化明顯,具有方向性。(2)空氣動力學(xué)粗糙度的季節(jié)性變化取決于下墊面植被(農(nóng)田和草地)的季節(jié)性變化,與植被高度呈顯著線性關(guān)系,與葉面積指數(shù)呈拋物線關(guān)系。(3)對于農(nóng)田、草地下墊面而言,計算結(jié)果與Yang et al.方法估算值較為接近的參數(shù)化方案分別為Bastiaanssen and Bandara、Brutsaert。
[Abstract]:Based on the vortex correlator and automatic meteorological observation data of Guantao and Arou stations in 2010, the aerodynamic roughness is estimated by using Yang et al. method, and the temporal and spatial variation characteristics of aerodynamic roughness are analyzed. The results show that the relationship between aerodynamic roughness and wind direction depends on the degree of inhomogeneity of the underlying surface, and that the aerodynamic roughness of the underlying surface varies obviously with the wind direction, and compared with the five parameterized schemes of Brutsaertv Monteithaanssen and Wang Bastiaanssen and Bandaraen Teixeira, the results show that the relationship between the aerodynamic roughness and the wind direction depends on the inhomogeneity of the underlying surface. The seasonal variation of aerodynamics roughness depends on the seasonal variation of underlying vegetation (farmland and grassland), and has a significant linear relationship with vegetation height and parabola with leaf area index. In terms of grassland underlying surface, the calculated results are close to that of Yang et al.Methods the parameterized schemes are Bastiaanssen and Bandara Brutsaert, respectively.
【作者單位】： 南京信息工程大學(xué)大氣環(huán)境中心;中國氣象局氣象干部培訓(xùn)學(xué)院湖北分院;北京師范大學(xué)遙感科學(xué)國家重點實驗室地理學(xué)與遙感科學(xué)學(xué)院;武漢區(qū)域氣候中心;
【基金】：中央高�；究蒲袠I(yè)務(wù)費專項資金 國家自然科學(xué)基金項目(編號:40971194);(編號:30911130504)資助
【分類號】：O355
，

本文編號：1693195