Mapping and Prioritizing Potential Illegal Dump Sites Using Geographic Information System Network Analysis and Multiple Remote Sensing Indices

IF 1.6 4区 地球科学 Q3 GEOSCIENCES, MULTIDISCIPLINARY Earth Interactions Pub Date : 2022-11-02 DOI:10.3390/earth3040065
Nima Karimi, K. T. W. Ng
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引用次数: 2

Abstract

Due to rapid urbanization and population growth, identification and management of illegal dump sites has been a global challenge. In this study, satellite imagery and geographic information system were used to map potential illegal dump sites (PIDS). An original analytical approach was developed to identify PIDS using a set of remote sensing indices and vector files. The Network Analysis tool was used to prioritize PIDS considering driving distance between PIDS and neighboring populated points. A total of five variables (Landfills, LST, HCHO, Highways, and EVI) were considered. A study area in Saskatchewan, Canada, was selected, and the identified PIDS account for about 37.3% of the total area. Road network intensity and accessibility appear important to the occurrence of PIDS. Overall road densities in identified PIDS ranged from 0.098 to 0.251 km/km2. All five variables have observable effects on the occurrence of PIDS; however, LST and highways are recommended for future studies due to their higher membership grade and spatial sensitivity. The combination of multiple remote sensing indices and network analysis on PIDS prioritization is advantageous. The proposed PIDS mapping and prioritization method can be easily employed elsewhere.
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基于地理信息系统网络分析和多种遥感指标的潜在非法垃圾场制图与优先排序
由于城市化和人口的快速增长,非法垃圾场的识别和管理已经成为一个全球性的挑战。本研究利用卫星影像和地理信息系统对潜在的非法倾倒场(PIDS)进行测绘。利用一套遥感指数和矢量文件,提出了一种原始的分析方法来识别PIDS。使用网络分析工具根据PIDS与邻近人口稠密点之间的行驶距离对PIDS进行优先排序。总共考虑了五个变量(垃圾填埋场,LST, HCHO,公路和EVI)。选取了加拿大萨斯喀彻温省的研究区域,确定的PIDS约占总面积的37.3%。路网强度和可达性对PIDS的发生具有重要影响。已确定的道路密度范围为0.098至0.251公里/平方公里。这五个变量对PIDS的发生都有明显的影响;然而,由于LST和公路具有较高的隶属度和空间敏感性,因此建议在未来的研究中使用它们。多种遥感指标与网络分析相结合,有利于PIDS的优先排序。所提出的pid映射和优先排序方法可以很容易地应用于其他地方。
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来源期刊
Earth Interactions
Earth Interactions 地学-地球科学综合
CiteScore
2.70
自引率
5.00%
发文量
16
审稿时长
>12 weeks
期刊介绍: Publishes research on the interactions among the atmosphere, hydrosphere, biosphere, cryosphere, and lithosphere, including, but not limited to, research on human impacts, such as land cover change, irrigation, dams/reservoirs, urbanization, pollution, and landslides. Earth Interactions is a joint publication of the American Meteorological Society, American Geophysical Union, and American Association of Geographers.
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