1) urban heat island intensity
城市热岛强度
1.
Seasonal and annual trends of mean,minimum and maximum temperature series in Wuhan meteorological station and four rural stations averaged from 1960 to 2005,from 1960 to 1982 and from 1983 to 2005,respectively,together with the trends of urban heat island intensity and its contribution rate were calculated.
利用武汉市区气象站及其周边4个县气象站1960-2005年的气温资料,计算了46a及分时段的季节和年平均气温、平均最高和最低气温倾向率,城市热岛强度倾向率及其贡献率。
2.
Seasonal and annual bias rates of mean,minimum and maximum temperature series in Wuhan meteorological station and 4 suburb stations averaged from 1960 to 2005,form 1960 to 1982,from 1983-2005,together with the bias rates of urban heat island intensity and its contribution rate are calculated.
计算了武汉市气象站、周边4县气象站平均的1960~2005年间以及前后两半时段四季和年平均、最高、最低气温倾向率,城市热岛强度倾向率和贡献率。
3.
But there is few studies on the calculation of the urban heat island intensity at present.
城市热岛强度是城市热场分布的重要表达手段,目前,对专门研究城市热岛强度的计算方法讨论较少。
2) urban heat island
城市热岛
1.
Characteristics of multi-scale temporal-spatial distribution of urban heat island in Guangzhou;
广州城市热岛空间分布及时域-频域多尺度变化特征
2.
Research on Urban Heat Island and its Environmental Effects of Rapidly Urbanized Regions;
快速城市化区域城市热岛及其环境效应研究
3.
Study on intensification of solar radiation absorption of building exterior surface on“urban heat island effect”;
建筑外表面吸热对“城市热岛”增益的研究
3) Urban heat island (UHI)
城市热岛
1.
Total suspended particulates (TSP) and its effects on urban heat island (UHI);
城市大气总悬浮颗粒物与城市热岛
2.
In this paper, the summer meteorological data (from 1998 to 2003) from 10 observatories, 1 auto-observatory and the Beijing 325m tower have been used to study the urban heat island (UHI) and the meteorological fields near the surface in the summer of Beijing.
应用1998~2003年7、8月份的北京市10个气象台站和1个自动台站观测资料以及中国科学院大气物理研究所325m气象塔的观测资料,对北京市的夏季城市热岛特征及其气象场进行了分析。
3.
The Urban heat island (UHI) effect has been increasing so prominently that the measures for quantitative monitoring, analysis and evaluation of the UHI effect have become one of the most important fields in current urban climate and environment researches.
系统总结了应用遥感技术开展城市热岛研究的数据、方法与成果。
4) heat island
城市热岛
1.
Finally,the conclusion shows that radiation of asphalt pavement is a main cause of heat island phenomena.
所以,如果降低路面温度就可以大大降低路面辐射,减轻城市热岛效应。
5) heat island intensity
热岛强度
1.
The result showed that intensity of heat island and dry island maximized at 20:00 in summer and autumn with 6℃ heat island intensity as the highest, and 2℃ average, as well as with 30% dry island intensity as the highest, and 9% average.
选择了具有代表性的 4 个点,在春、夏、秋、冬分 8:00、14:00、20:00 三个时段进行了气温观测,得到热岛强度和干岛强度以晚上 20:00 最大,四季中以夏秋季节最大,获得最大热岛强度为 6℃,四季平均约为 2℃,最大的干岛强度为 30%,四季平均约为 9%。
2.
The annual mean heat island intensity in Shenzhen can be 2.
结果显示,深圳的城市热岛呈现出明显的多中心现象,全年热岛强度平均值高达2。
6) Intensity of urban heat island
热岛强度
1.
In this paper, it is studied to monitor the intensity of urban heat island with LANDSAT data.
利用TM卫星遥感数据的分析结果 ,根据地理相似准则 ,提出以相对亮温来表示热岛强度 ,并将此无量纲因子应用于比较不同城市同一季节的不同小区、或同一小区不同时期中的热岛强度的差异 ,以此探讨利用遥感技术监测城市热岛强度的可能性 。
补充资料:城市热岛
城市热岛
【城市热岛l城市中心地区的气温较周围外部较高的一种现象。其强度以城区平均气温与郊区平均气温的差额表示。一般大城市的年平均气温比郊区高0.5一1.0度,冬季平均最低气温约高1一2℃。由于城市路面和建筑材料大多数反射率小,热传导和热容t较大,在夏季阳光照射下,混凝土平面的气温比大气温度高8℃,比柏油路面高17℃,兼之城区工厂林立、人口密集,交通繁忙,大t的C仇排放到大气中,破坏了原来的生态平衡,导致城市温度过高。如果对城市勾划等温线,气温自城市中心向四周降低,如同海洋上的岛屿高出海平面的情形,故通常用“城市热岛”来描述城市气温的这种变化现象。热岛的存在与消失与风速有很大关系,风速在6In/秒,城乡温差最明显,风速n而秒时热岛消失。城市热岛的形成是城市环境恶化的信号,采用何种手段和措施以避免热岛形成或降低其强度,是当前环境保护的一大课题,也是改善城市环境的一个突破口。
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