设为首页 加入收藏 登录旧版
无锡市国控环境空气自动监测站点周边裸土分布高分辨率遥感监测
High-Resolution Remote Sensing Monitoring of the Distribution of Bare Soil Around the National Controlled Ambient Air Automatic Monitoring Station in Wuxi City
投稿时间:2021-07-26  修订日期:2022-05-22
DOI:10.19316/j.issn.1002-6002.2022.05.26
中文关键词:  裸土|哨兵2号|大气颗粒物|无锡
英文关键词:bare soil|Sentinel-2|atmospheric particulate matter|Wuxi
基金项目:水体污染控制与治理国家科技重大专项课题"太湖流域水环境管理技术集成与业务化运行"(2018ZX07208)
作者单位
张虎军 江苏省无锡环境监测中心, 江苏 无锡 214000 
宋挺 江苏省无锡环境监测中心, 江苏 无锡 214000 
朱冰川 江苏省无锡环境监测中心, 江苏 无锡 214000 
石浚哲 江苏省无锡环境监测中心, 江苏 无锡 214000 
张军毅* 江苏省无锡环境监测中心, 江苏 无锡 214000 
通讯作者:张军毅*  江苏省无锡环境监测中心, 江苏 无锡 214000  
摘要点击次数: 90
全文下载次数: 39
中文摘要:
      以无锡市为研究区,使用过境时间相近的哨兵2号Sentinel-2和Landsat8影像,综合使用NDSI、NDISI、MNDWI、LST等指数进行决策树分类,获得10 m高空间分辨率的土地利用分类结果和裸土分布,裸土提取精度达到94.13%。统计了无锡市与8个国控环境空气自动监测站点1、2、3 km缓冲区范围内的裸土分布情况,并与各站点监测的大气颗粒物浓度进行相关性分析。结果表明,国控环境空气自动监测站点周边裸土面积对颗粒物浓度有较大影响,其中对PM10浓度的影响明显大于PM2.5;相比于1 km和3 km,2 km缓冲区范围内的裸土面积对PM10浓度的影响最大,建议环境管理部门重点关注无锡地区国控监测站点周边2 km范围内的裸土扬尘源分布情况。
英文摘要:
      Taking Wuxi City as the study area,the decision tree classification was carried out using Sentinel-2 and Landsat8 satellite remote sensing images with similar transit time,and a combination of NDSI,NDISI,MNDWI and LST indices was used to obtain 10m high spatial resolution land use classification results and bare soil distribution,with bare soil extraction accuracy reaching 94.13%.The distribution of bare soil within the 1km,2km and 3km buffer zones of eight state-controlled automatic ambient air monitoring stations in Wuxi were counted and correlated with the atmospheric particulate matter concentrations monitored at each station.The results showed that the area of bare soil around the state-controlled automatic ambient air monitoring stations had a greater influence on the concentration of particulate matter,with a significantly greater influence on PM10 concentrations than PM2.5.Compared with 1 km and 3 km,the area of bare soil within the 2 km buffer zone had the greatest influence on PM10 concentrations,suggesting that environmental management departments should focus on the distribution of bare soil and dust sources within the 2 km range around the state-controlled monitoring stations in Wuxi.
查看全文  查看/发表评论  下载PDF阅读器