An Empirical Mode Decomposition for Establishing Spatiotemporal Air Quality Trends in Shandong Province, China
文献类型：期刊论文
| 作者 | Wu, Huisheng2; Hu, Maogui1; Zhang, Yaping2; Han, Yuan2 |
| 刊名 | SUSTAINABILITY
 |
| 出版日期 | 2021-11-01 |
| 卷号 | 13期号:22页码:10 |
| 关键词 | air pollution spatial pattern temporal trend decomposition |
| DOI | 10.3390/su132212901 |
| 通讯作者 | Hu, Maogui(humg@lreis.ac.cn) |
| 英文摘要 | Air pollution is a serious problem in China, and the government has taken a series of steps to solve it. However, it is still u2nclear how the situation has improved after years of atmospheric pollution control. Shandong Province, which has the second largest population and the highest coal consumption in China, was chosen to analyze the spatiotemporal air quality trends. We obtained daily air quality index (AQI) values from 91 stations in the province from 1 January 2014, to 31 December 2019, based on an adaptive data analysis method, empirical mode decomposition (EMD). The distribution of AQI in Shandong Province was heterogeneous at both spatial and temporal scales. All the stations could be divided into four clusters whose AQI trends decreased from 75 to 53, 95 to 68, 128 to 82, and 148 to 82, respectively. The overall trend of pollution became more serious from east to west in the province. The AQI is the largest in winter, followed by spring and autumn, and the smallest index occurs in summer. There are four types of annual trends of the AQI of each city. The overall downward trend indicates that the air quality of each city was improving annually. |
| WOS关键词 | PARTICULATE MATTER ; PM2.5 CONCENTRATIONS ; POLLUTION |
| 资助项目 | National Natural Science Foundation of China[41771434] ; National Natural Science Foundation of China[41930651] ; Fundamental Research Funds for the Central Universities[18CX02064A] |
| WOS研究方向 | Science & Technology - Other Topics ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000727547600001 |
| 出版者 | MDPI |
| 资助机构 | National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/168595]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Hu, Maogui |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China 2.China Univ Petr, Coll Oceanog & Space Informat, Qingdao 266580, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Huisheng,Hu, Maogui,Zhang, Yaping,et al. An Empirical Mode Decomposition for Establishing Spatiotemporal Air Quality Trends in Shandong Province, China[J]. SUSTAINABILITY,2021,13(22):10. |
| APA | Wu, Huisheng,Hu, Maogui,Zhang, Yaping,&Han, Yuan.(2021).An Empirical Mode Decomposition for Establishing Spatiotemporal Air Quality Trends in Shandong Province, China.SUSTAINABILITY,13(22),10. |
| MLA | Wu, Huisheng,et al."An Empirical Mode Decomposition for Establishing Spatiotemporal Air Quality Trends in Shandong Province, China".SUSTAINABILITY 13.22(2021):10. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。