基于NOAA/AVHRR热红外数据的城市热岛强度年内变化特征

被引:8
作者
樊辉
机构
[1] 山东省科技发展战略研究所
关键词
NOAA/AVHRR; 城市热岛; 季节变化; ENVI批处理;
D O I
暂无
中图分类号
TP79 [遥感技术的应用];
学科分类号
081102 ; 0816 ; 081602 ; 083002 ; 1404 ;
摘要
采用ENVI/IDL编程技术,实现NOAA/AVHRR数据的校准、几何纠正、云污染识别与剔除、影像特征统计与输出等过程的批处理自动化操作。并以济南市中心城区为例,通过2005~2006年间获取的白天NOAA/AVHRR影像热红外波段调查了济南市区城市热岛强度的年内变化规律与过程。研究结果表明:①济南市区全年大部分时间存在热岛现象,4~9月份城市热岛效应较为明显,尤以5、7、8月为甚。②全年城市热岛平均强度2.77℃,最强的热岛效应出现于7月下旬至8月中旬间。③从季节分布来看,济南市区夏季热岛效应最明显,春季次之,秋、冬两季较弱。④城市热岛强度与城、郊地表温度存在正相关关系,但相关程度较差。
引用
收藏
页码:414 / 418
页数:5
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