| MODIS数据北京城区热岛监测分析 |
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| 引用本文： | 李新芝,王萍,陈庆运.MODIS数据北京城区热岛监测分析[J].测绘科学,2010,35(4):100-102. |
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| 作者姓名： | 李新芝 王萍 陈庆运 |
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| 作者单位： | 山东科技大学测绘学院,山东青岛,266510;首钢矿业公司,河北迁安,064404 |
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| 基金项目： | 山东省软科学研究计划项目 |
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| 摘 要： | 随着城市化进程的深入,热岛效应问题越来越严重,从而影响城市及周边地区的生态环境与气候,因此备受人们的重视。本文从2000年—2007年724幅1km分辨率的MODIS地表温度产品中选取64幅质量较好,可以代表春、夏、秋、冬四个季节的昼夜影像,制作地表温度图和选取感兴趣区域分析北京城区热岛效应。结果表明,北京市城区温度明显高于周围地区,夏季夜间最高达到3.7℃,秋季白天相对热岛强度较大,夏季、冬季夜间热岛强度要大于白天,尤其冬季较为明显。
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| 关 键 词： | 热岛强度 MODIS数据 地表温度产品 |
Monitoring and analyzing urban heat island of Beijing based on MODIS data |
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| LI Xin-zhi,WANG Ping,CHEN Qing-yun.Monitoring and analyzing urban heat island of Beijing based on MODIS data[J].Science of Surveying and Mapping,2010,35(4):100-102. |
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| Authors: | LI Xin-zhi WANG Ping CHEN Qing-yun |
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| Abstract: | With the further process of urbanization,heat island effect problem is getting more and more serious,affecting the ecological environment and climate of the city and the surrounding areas,so it is paid more and more attention by people.This article selected 64 images of better quality from 724 MODIS images with 1km resolution of the surface temperature products of 2000-2007,which can represent day and night images on four seasons of the spring,summer,autumn and winter,to analyze urban heat island effect though producing surface temperature maps and selecting the interested region.The results showed that the temperature in Beijing urban area was significantly higher than the surrounding area,at night of summer up to 3.7℃,during the day of fall,the heat island was larger in relative;in summer and winter,heat island intensity was larger at night than during the day,especially in winter.Though monitoring and analyzing the heat island effect in Beijing,the general procedures of analyzing heat island effect using MODIS data products were given in order to reveal the main factors of the urban heat island quantitatively,provide reference for a similar study of urban heat island,and supply both theoretical and applied basis for the city's ecological construction,environmental protection and formulation of relevant measures. |
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| Keywords: | heat island intensity MODIS data surface temperature product |
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