基于OMI的船舶排放控制区SO2减排效益分析  

Study on the benefits of SO2 emission reduction in emission control area based on OMI data

作　　者：李亚芳 李颖[1] 冉明衢 LI Yafang;LI Ying;RAN Mingqu(Navigation College,Dalian Maritime University,Dalian 116033,China)

机构地区：[1]大连海事大学航海学院,辽宁大连116033

出　　处：《海洋通报》2020年第5期627-631,共5页Marine Science Bulletin

基　　金：国家自然科学基金(41571336);国家海洋公益类专项(201305002)。

摘　　要：船舶尾气排放是造成海洋污染的主要排放源之一。自2016年设立船舶大气污染物排放控制区以来,船舶硫氧化物、氮氧化物和颗粒物排放显著减少。为了对环渤海湾水域排放控制区的大气SO2减排效果进行分析,选取了Aura卫星搭载的OMI传感器痕量数据产品OMSO2进行大气SO2数据反演。选择2017年各月的OMI Level-2痕量数据,对大气边界层SO2柱量值进行提取,采用空间分析方法,对其时空变化进行分析,以监测排放控制区的减排效果。结果表明:春季和冬季SO2量值明显高于其他季节,年际变化比较明显,自2016年以来,SO2柱总量峰值逐年降低,并且高值区域逐渐减少,证明排放控制区的设立对大气质量保护具有积极作用。Ship exhaust is one of the main sources of marine pollution.Since the establishment of the air pollutant emission control zone for ships in 2016,the emissions of sulfur oxides,nitrogen oxides and particulate matter from ships have been significantly reduced.In order to analyze the emission reduction effect of atmospheric SO2 in the the Bohai Bay,the data-tracing product of OMI sensor carried by Aura satellite,was selected for atmospheric SO2 data inversion.The OMI level-2 data of each month in 2017 were selected to extract the SO2 column volume value in the atmospheric boundary layer,and the spatial analysis method was used to analyze its temporal and spatial changes to monitor the emission reduction effect in the emission control area.Results show that the value of SO2 in spring and winter is significantly higher than that in other seasons,and the annual change is relatively obvious.Since 2016,the peak value of total SO2 column has decreased year by year,and the high value area has gradually reduced,proving that the establishment of emission control area has a positive effect on air quality assurance.

关 键 词：海洋污染 气体监测 OMI卫星数据 SO2量值 

分 类 号：X831[环境科学与工程—环境工程] X87