基于GOME-2卫星遥感数据估算近海海域氮沉降通量的方法研究

提出了一种利用NO2卫星遥感数据估算近海海域NO2干沉降与无机氮(除氨氮)湿沉降通量的新方法。利用该方法对中国黄海海域2009年N沉降通量进行了估算,并将估算结果与其他研究结果进行了对比。结果表明:该方法估算通量均值相对较高,但与其他研究在数量级上是一致的,并能够反映研究海域大气N沉降通量的空间分布状况,可为我国海洋环境监测与评价大面积数据获取提供技术支撑。

An approach of estimating the atmospheric deposition of nitrogen to the coastal water using GOME-2 satellite data

This paper presents a novel approach to estimate settling amount dry deposition of nitrogen dioxide and wet deposition of inorganic nitrogen(ammonia nitrogen is excepted) in the coastal waters,which makes use of satellite remote sensed nitrogen dioxide data.The method is then applied to estimate the deposition flux of N in 2009 in the Yellow Sea.Finally,the results of this method are compared to other studies.The comparison results indicate that although the mean deposition flux of N estimated by this approach is a little larger than other researches,they are in the same order of magnitude.Moreover,the method in this paper can display the spatial distribution of atmospheric N deposition fluxes in the interested sea,which can provide technical support for obtaining the ocean environment monitoring and evaluation large-scale data.