Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.3390/atmos15010054 |
| Factors Influencing the Spatio-Temporal Variability of Aerosol Optical Depth over the Arid Region of Northwest China | |
Zhang, Fei
| |
| 通讯作者 | Zhang, F |
| 来源期刊 | ATMOSPHERE
 |
| EISSN | 2073-4433 |
| 出版年 | 2024 |
| 卷号 | 15期号:1 |
| 英文摘要 | Aerosol optical depth (AOD) is an important physical variable used to characterize atmospheric turbidity for the management and control of air pollution. This study aims to analyze the factors influencing the spatial and temporal variability in AOD across the arid region of Northwest China (ARNC) using MODIS Aqua C006 aerosol product data from 2008 to 2017. In terms of natural and socioeconomic factors, the correlation coefficient (R) was used to identify the most influential factor in the AOD changes. The results show that AOD values in spring and summer were much higher than those in autumn and winter, especially in spring. In general, AOD had an insignificant decreasing trend, with a small overall changing range. Spatial analysis revealed a significantly decreasing trend, mostly across the Gobi Desert area, which is located in the western region of the ARNC. From the perspective of natural factors, AOD was positively correlated with air temperature (AT), wind speed (WP), land surface temperature (LST), and the digital elevation model (DEM) and negatively correlated with precipitation, relative humidity (RH), and the normalized difference vegetation index (NDVI). The greatest positive correlation, with a maximum R value of 0.8, was found between AOD and wind speed. By contrast, AOD and relative humidity had the strongest negative correlation, with R values of -0.77. In terms of anthropogenic factors, gross domestic product (GDP), secondary industry, and population density were the three major anthropogenic factors that influenced the changes in AOD changes in this region. In general, the effects of anthropogenic factors on AOD are more significant in areas with high urban population densities. |
| 英文关键词 | aerosol optical depth (AOD) arid region of Northwest China (ARNC) spatial-temporal variability natural influencing factors anthropogenic influencing factors |
| 类型 | Article |
| 语种 | 英语 |
| 开放获取类型 | gold |
| 收录类别 | SCI-E |
| WOS记录号 | WOS:001149059700001 |
| WOS关键词 | TROPOSPHERIC AEROSOL ; AIR-POLLUTION ; EAST-ASIA ; CLIMATE ; DUST ; LAND ; RETRIEVAL ; TRENDS ; VEGETATION ; THICKNESS |
| WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
| WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/402966 |
| 推荐引用方式 GB/T 7714 | Zhang, Fei. Factors Influencing the Spatio-Temporal Variability of Aerosol Optical Depth over the Arid Region of Northwest China[J],2024,15(1). |
| APA | Zhang, Fei.(2024).Factors Influencing the Spatio-Temporal Variability of Aerosol Optical Depth over the Arid Region of Northwest China.ATMOSPHERE,15(1). |
| MLA | Zhang, Fei."Factors Influencing the Spatio-Temporal Variability of Aerosol Optical Depth over the Arid Region of Northwest China".ATMOSPHERE 15.1(2024). |
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