城市区域下垫面性质和位置差异对太阳辐射平衡的影响

张一平; 何云玲; 刘玉洪; 马友鑫; 李佑荣; 窦军霞; 郭萍

城市区域下垫面性质和位置差异对太阳辐射平衡的影响

中国科学院西双版纳热带植物园, 云南, 昆明, 650223

基金项目: 国家自然科学基金重点项目(59836250)资助

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出版历程
- 收稿日期: 2002-06-11
- 修回日期: 2002-08-28

INFLUENCES OF UNDERLYING SURFACE’S CHARACTERISTICS AND LOCATIONS ON SOLAR RADIATION BALANCE IN URBAN AREA

Xishuangbanna Tropical Botanical Garden, CAS, Kunming 650223, China

摘要

摘要: 以低纬高原城市昆明为研究对象,利用城市区域内4月、8月、12月的太阳辐射观测资料,对城市区域内不同下垫面性质和位置差异的辐射平衡特征和变化规律进行了研究。结果表明:昆明地区4月的太阳辐射各分量均较高,而多云天气的8月太阳辐射分量较小;屋顶的总辐射量和净辐射量均维持较高的数值,而受周围环境、建筑物遮蔽等影响的草地和球场则数值变化较大;随时间和下垫面的不同,反射辐射呈现较大差异;有效辐射则在多云天的8月呈现较小值(分配率趋于0)。所得结果可为探讨城市气候形成机制及城市气候的深入研究提供依据,并为其它地区的研究提供参考。
- 城市 /
- 下垫面 /
- 辐射平衡
Abstract: According to observations of solar radiation in April, August and December in Kunming, a city situating in low latitude plateau, characteristics and variations of solar radiation balance are studied for underlying surface of different characteristics and locations in urban area. Results shows that the values of each radiation factor in the radiation equation are the largest in April, and smallest in August, when it is cloudy. For the total radiation and net radiation, they are largest on the rooftop, and fluctuate greatly on the ground and lawn due to the influences of the surroundings and building shading. The reflective radiations vary greatly with time and different surfaces. Meantime, the net long wave radiation is the smallest in August (the percentage in total is almost zero). These results not only can be served as scientific foundation for more research on urban climate and the mechanism for causing it, but also may be reference for studying the urban climate concerning other regions.
- city /
- underlying surface /
- radiation balance

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参考文献(11)

[1]	周淑贞,束炯. 城市气候学[M].北京:气象出版社,1994. 244-344.
[2]	PETTERSON J T, STOFFEL T L. Analysis of Urban-rural solar radiation data from St. Louis, Missouri [J].Journal of Applied Meteorology, 1980, 19: 275-283.
[3]	SANDERSON M, KUMANAN I, TANGUAY T, et al. Three aspects of urban climate of Detroit Windsor [J].Journal of Applied Meteorology, 1973, 12: 629-638.
[4]	OKE T R, FUGGLE R F. Comparison of urban /rural counter and radiation at night [J].Boundary-Layer Meteorology, 1972, 2: 290-308.
[5]	RAO P K. Remote sensing of urban heat islands from an environmental satellite [J].Bull Amer Meteor Soc, 1972, 53: 647-648.
[6]	WHITE J M, EATON F D, AUER A H JR. The net radiation budget of the St. Louis Metropolitan Area [J].Journal of Applied Meteorology, 1978, 17: 593-599.
[7]	张一平. 城市区域光热资源特征[J].城市环境与城市生态,1999,12(1):40-43.
[8]	云南省统计局. 云南统计年鉴(2001)[Z].北京:中国统计出版社,2001. 397-399.
[9]	张一平. 城市区域内不同下垫面的有效辐射特征[J].气象科学,1997,17(2):168-174.
[10]	张一平,彭贵芬,张庆平. 城市区域屋顶与地上的风速和气温特征分析[J].地理科学,1998,18(1):45-52.
[11]	FUGGLE R F, OKE T R. Long-wave radiative flux divergence and nocturnal cooling of the urban atmosphere (Ⅱ) Aboveroof-level [J].Boundary-Layer Meteorology, 1976, 10: 113-120.