主办单位:中国气象局沈阳大气环境研究所
国际刊号:ISSN 1673-503X
国内刊号:CN 21-1531/P

气象与环境学报 ›› 2025, Vol. 41 ›› Issue (2): 107-111.doi: 10.3969/j.issn.1673-503X.2025.02.013

• 快报 • 上一篇    

2022年河南省NO2柱浓度分布及其热点识别

王微1, 余海坤1, 张向军1, 孙慧敏2   

  1. 1. 河南省遥感院, 河南郑州 450003;
    2. 清华附中郑州学校, 河南郑州 450040
  • 收稿日期:2023-08-10 修回日期:2023-11-07 发布日期:2025-06-20
  • 作者简介:王微,男,1991年生,工程师,主要从事卫星遥感应用研究,E-mail:wangwei8116@126.com。
  • 基金资助:
    自然资源遥感智能解译样本及光谱数据库建设关键技术研究及应用示范(2023ZRBSHZ027)和自然资源要素遥感智能识别关键技术研究及业务化应用(2023-382-2)共同资助。

Distribution and hotspot detection of NO2 column concentration in Henan province in 2022

WANG Wei1, YU Haikun1, ZHANG Xiangjun1, SUN Huimin2   

  1. 1. Henan Remote Sensing Institute, Zhengzhou 450003, China;
    2. Zhengzhou School of Tsinghua Affiliated High School, Zhengzhou 450040, China
  • Received:2023-08-10 Revised:2023-11-07 Published:2025-06-20

摘要: 选用Sentinel-5p卫星影像数据,对2022年河南省年和月平均NO2柱浓度数据时空分布进行分析,根据快速衰减的反距离热点分析法识别NO2热点区域。结果表明:河南省NO2柱浓度具有冬季和春季高、夏季低的特征,时间变化呈U型分布,有明显对称性;NO2柱浓度的空间分布为东北方向高、西南方向低,高浓度区域主要位于沿太行山一带的安阳市、鹤壁市、新乡市和郑州市主城区。快速衰减的反距离热点分析法可识别多尺度下的NO2热点区域,有助于进一步排查和确认NO2排放源。

关键词: 反距离热点, Sentinel-5p卫星, 多尺度

Abstract: Based on Sentinel-5p satellite imagery data, this study analyzes the spatial and temporal distribution of annual and monthly average NO2 column concentration in Henan Province in 2022.The fast-decay inverse distance hotspot analysis method is applied to identify NO2 hotspot areas. The results show that NO2 column concentration in Henan Province exhibits high concentration in winter and spring but low in summer, with a U-shaped temporal symmetry. Spatially, NO2 column concentration exhibit higher concentration in the northeast and lower in the southwest, with high values concentrated mainly in the urban districts of Anyang, Hebi, Xinxiang, and Zhengzhou along the Taihang Mountains. The fast-decay inverse distance hotspot analysis method effectively detects NO2 hotspot areas across multiple scales, facilitating further investigation and verifying of NO2 emission sources.

Key words: Inverse distance hotspot, Sentinel-5p satellite, Multi-scale analysis

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