赵庆志, 杨鹏飞, 李祖锋, 姚顽强, 姚宜斌. 突发公共卫生事件期间中国区域AOD与气象因子时空特征分析[J]. 武汉大学学报 ( 信息科学版), 2023, 48(12): 2019-2032. DOI: 10.13203/j.whugis20210209
引用本文: 赵庆志, 杨鹏飞, 李祖锋, 姚顽强, 姚宜斌. 突发公共卫生事件期间中国区域AOD与气象因子时空特征分析[J]. 武汉大学学报 ( 信息科学版), 2023, 48(12): 2019-2032. DOI: 10.13203/j.whugis20210209
ZHAO Qingzhi, YANG Pengfei, LI Zufeng, YAO Wanqiang, YAO Yibin. Spatial and Temporal Characteristics of AOD and Meteorological Factors in China During the Period of Public Health Emergencies[J]. Geomatics and Information Science of Wuhan University, 2023, 48(12): 2019-2032. DOI: 10.13203/j.whugis20210209
Citation: ZHAO Qingzhi, YANG Pengfei, LI Zufeng, YAO Wanqiang, YAO Yibin. Spatial and Temporal Characteristics of AOD and Meteorological Factors in China During the Period of Public Health Emergencies[J]. Geomatics and Information Science of Wuhan University, 2023, 48(12): 2019-2032. DOI: 10.13203/j.whugis20210209

突发公共卫生事件期间中国区域AOD与气象因子时空特征分析

Spatial and Temporal Characteristics of AOD and Meteorological Factors in China During the Period of Public Health Emergencies

  • 摘要: 为了探究突发公共卫生事件期间人类活动减少对中国空气质量的影响,分析了气溶胶光学厚度(aerosol optical depth, AOD)、大气可降水量(precipitable water vapor, PWV)和气温(temperature, T)的时空异常变化,揭示了人类活动对空气质量的影响。首先,与气溶胶自动观测网(aerosol robotic network, AERONET)提供的AOD和无线电探空仪提供的PWV和T数据对比,验证使用的AOD、PWV和T的精度。其次,分析周末与周内期间AOD、PWV和T的长时序变化趋势,发现人类活动对空气质量有一定影响。然后,研究突发公共卫生事件期间AOD、PWV和T的时空变化,证实人类活动与空气质量有较好的相关性。最后,选取中国184个不同等级的城市进行进一步分析,确定人口密度对AOD、PWV和T的影响程度,进一步揭示了人类活动与空气质量的具体响应关系。

     

    Abstract:
    Objectives In order to explore the impact of the decrease of human activities on the air quality in China during the period of the public health emergencies in 2019, the temporal and spatial abnormal changes of aerosol optical depth (AOD), precipitable water vapor (PWV) and temperature (T) are analyzed, and the impact of human activities on the air quality is revealed.
    Methods First, the accuracy of AOD, PWV and T is verified by comparing with AOD provided by aerosol robotic network and PWV and T provided by radiosonde. Second, we analyze the long-term trends of AOD, PWV and T during the weekend and the week, and find that human activities have a certain impact on the air quality. Third, the temporal and spatial changes of AOD, PWV and T during the period of public health emergencies are studied, which confirmed that there is a good correlation between human activities and air quality. Finally, 184 cities of different grades in China are selected for further analysis to determine the impact of population density on AOD, PWV and T, and further reveal the specific response relationship between human activities and air quality.
    Results Through the verification of the accuracy of the used data, it is found that the selected data have high accuracy, which can be used in this experimental study. By analyzing the PWV, AOD and T changes in public health emergencies, it is found that PWV, AOD and T are all affected.
    Conclusions Due to the influence of public health emergencies, AOD, PWV and T show different trends. At the same time, it is found that the main reason for this phenomenon is the influence of the intensity of human activities.

     

/

返回文章
返回