【摘要】 近年来,PM_2.5已成为中国大气污染的首要污染物,危害人体健康。为弥补地基监测站点在空间分布上的局限性,借助卫星遥感技术估算PM_2.5浓度已成为研究热点。文章总结了利用卫星估算PM_2.5浓度的各种研究方法,探讨了不同方法的优势和不足,指出不同方法对不同应用目的的选择性差异较大。提出,应针对不同应用目的选择相应的方法,从而取得满足各方面需求的研究成果,为未来PM_2.5浓度估算应用工作提供参考。更多还原

【Abstract】 PM_2.5（Fine Particulate Matter） has become the primary air pollution pollutant in China,endangering human health. To make up for the limitations of spatial distribution of ground-based monitoring sites,it has become a research hotspot by using the advantages of remote sensing satellite technology to estimate PM_2.5 concentrations. The methods for estimating PM_2.5 are summarized,and the advantages and disadvantages of each method are discussed,also there is a great difference in the selectivity of different application goals. It is suggested that appropriate methods should be selected for different application purpose to meet the needs of various aspects. It provides reference of PM_2.5 estimation for future.更多还原