| 成都城市发展对热岛强度影响的主成份回归分析 |
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| 引用本文： | 石凤云,唐佑民.成都城市发展对热岛强度影响的主成份回归分析[J].成都信息工程学院学报,1991(Z1). |
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| 作者姓名： | 石凤云 唐佑民 |
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| 作者单位： | 成都气象学院气象系
(石凤云),成都气象学院气象系(唐佑民) |
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| 摘 要： | 本文对成都市总人口、建成区面积等11个因子、作了主成份回归L-S估计和M-估计,讨论了成都城市发展对“热岛”强度的主要影响因子。结果表明,城区房屋建筑面积及总人口数是影响城市气候(气温)的主要因子,其次为城市人口总户数、建成面积等。 文中,对回归方程进行了拟合计算,回归效果比较满意(尤其是稳健回归)。
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| 关 键 词： | 城市气候 热岛强度 主成份回归 稳健回归 |
APPLYING PRINCIPAL COMPONENT REGRESSION TO STUDY THE URBANIZATION EFFECT ON "HEAT ISLAND" OF CHENGDU |
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| Shi Fengyun Tang Youmin.APPLYING PRINCIPAL COMPONENT REGRESSION TO STUDY THE URBANIZATION EFFECT ON "HEAT ISLAND" OF CHENGDU[J].Journal of Chengdu University of Information Technology,1991(Z1). |
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| Authors: | Shi Fengyun Tang Youmin |
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| Abstract: | paper studies the main factors affecting on urban "heat island" of Chengdu using principal component regression "L-S" estimation and "M-Robust" estimation. The results indicate that the sum of building area and the sum of population are the most important factors in eleven, while the sum of urban area and the sum of family are of the second. In our study, the imitation of regression equations of "M-" estimation shows a better relation with real data than that of "L-S" estimation. Consequently, a theoritical basis of forecasting urban climate is introduced. |
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| Keywords: | Urban climate Heat island intensity Principal components regression Robust estimation |
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