基于多源遥感信息的人为热排放量空间化——以浙江省为例

被引:9
作者
马盼盼
吾娟佳
杨续超
齐家国
机构
[1] 浙江大学海洋学院
关键词
人为热; 空间化; 夜间灯光; 人居指数; 浙江;
D O I
暂无
中图分类号
X16 [环境气象学]; X87 [环境遥感];
学科分类号
0706 ; 070602 ; 1404 ;
摘要
基于自上而下能源清单法,主要考虑工业、交通、建筑和人体新陈代谢这4个热源对人为热的贡献,估算了2010年浙江省68个县市的人为热排放总量.使用DMSP/OLS遥感夜间灯光数据以及阈值法提取出人为热排放的主要区域,并有效减少夜灯像元溢出效应的影响.利用夜间灯光数据和增强型植被指数(EVI)构建人居指数,基于各市县人为热排放总量与其行政区范围内人居指数累计值之间很强的相关关系建立人为热排放量空间化模型,获得了250m分辨率下浙江省2010年城市人为热通量的空间分布.结果显示浙江省各县市的平均人为热排放通量为5.5W/m2,城市高值区一般介于10~40W/m2.栅格化的人为热数据可以为城市气候环境的数值模拟研究提供基础数据支持.
引用
收藏
页码:314 / 320
页数:7
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