| 引用本文: | 齐静静,刘京,郭亮.遥感技术应用于河流对城市气候影响研究[J].哈尔滨工业大学学报,2010,42(5):797.DOI:10.11918/j.issn.0367-6234.2010.05.028 |
| QI Jing-jing,LIU Jing,GUO Liang.Application of remote sensing technology in the study of river’s influence on the urban climate[J].Journal of Harbin Institute of Technology,2010,42(5):797.DOI:10.11918/j.issn.0367-6234.2010.05.028 |
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| 摘要: |
| 为了确定松花江水域冬夏季对哈尔滨市及周边区域的影响,给城市河流规划与合理利用提供正确的理论支持,采用地面数据采集与遥感数据采集相结合的方法,对2004年1月25日和6月1日的热红外遥感影像图进行分析,以流经哈尔滨市的松花江段为研究对象,根据冬夏季温度、相对湿度分布,确定松花江城市河道对周边区域的影响.研究结果表明:在夏季,市区温度较郊区温度低,水域两侧地表温度呈递增分布,且变化趋势北岸比南岸明显,湿度市区较郊区高,市区以松花江及毗邻地区为湿度分布中心,且北岸比南岸影响半径大.在冬季,市区温度比郊区温度高约4℃,水域两侧温度分布差异明显,冰封水体表面温度与南岸温度接近,比北岸温度高约2℃,湿度分布符合城市干岛效应,市区湿度比郊区低约1%.该成果为后期地面定点观测和移动测量奠定了数据基础与技术支撑. |
| 关键词: 松花江 城市河道 城市热气候 遥感 现场观测 |
| DOI：10.11918/j.issn.0367-6234.2010.05.028 |
| 分类号:X87 |
| 基金项目:国家自然科学基金课题“城市河流对城市热气候影响的研究”(50879015);城市水资源与水环境国家重点实验室自主课题“天然水体水的社会循环优化控制技术与理论研究”(2008TS06) |
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| Application of remote sensing technology in the study of river’s influence on the urban climate |
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QI Jing-jing, LIU Jing, GUO Liang
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State Key Laboratory of Urban Water Resource and Environment,Harbin Institute of Technology,Harbin 150090,China
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| Abstract: |
| To investigate the influence of Songhua River on Harbin and its surrounding areas during summer and winter and present a theoretical support for correct utilization and optimization of the urban river,a ground data collecting approach combined with remote sensing data collecting is used to analyze the remote sensing images of January 25 and June 1 in 2004.This method based on the reach of Songhua River confirms the impact of Songhua River Basin on its adjacent areas according to the distributions of temperature and moisture in summer and winter.The results reveal that in summer the temperature inside the city is abnormally higher than that in the suburb area and there is a tendency of surface temperature increase from water area to both banks,moreover,that in the northern side is more manifest than that in the southern facet.While the suburb humidity value is comparatively low and the distribution of relative humidity is centered as the Songhua River and its adjacent areas,meanwhile,the influenced radius of northern bank is larger.In winter,the temperature inside the city is approximately 4 ℃ higher than that in the suburb area and the distribution of temperature along either side of Songhua River differs a lot.The surface temperature of the frozen river resembles that of southern bank,while it is 2 ℃ higher than that of northern bank.With urban humidity about 1% lower than that in the suburb,it is reasonable that the distribution of humidity of Harbin accords with the dry island effect in winter.This study lays a data base and a technical support for the pointing observation and moving measurement in the future. |
| Key words: Songhua River urban river urban climate remote sensing field observation |
