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Tropospheric mercury vertical profiles between 500 and 10aEuro-000 m in central Europe

机译:欧洲中部对流层汞垂直剖面在500至10a之间Euro-000 m

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The knowledge of the vertical distribution of atmospheric mercury (Hg) plays an important role in determining the transport and cycling of mercury. However, measurements of the vertical distribution are rare, because airborne measurements are expensive and labour intensive. Consequently, only a few vertical Hg profile measurements have been reported since the 1970s. Besides the Civil Aircraft for the Regular Investigation of the atmosphere Based on an Instrument Container (CARIBIC) observations, the latest vertical profile over Europe was measured in 1996. Within the Global Mercury Observation System (GMOS) project, four vertical profiles were taken on board research aircraft (CASA-212) in August 2013 in background air over different locations in Slovenia and Germany. Each vertical profile consists of at least seven 5 min horizontal flight sections from 500 m above ground to 3000 m a.s.l. Gaseous elemental mercury (GEM) and total gaseous mercury (TGM) were measured with Tekran 2537X and Tekran 2537B analysers. In addition to the mercury measurements, SO2, CO, O-3, NO, and NO2, basic meteorological parameters (pressure, temperature, relative humidity) have been measured. Additional ground-based mercury measurements at the GMOS master site in Waldhof, Germany and measurements onboard the CARIBIC passenger aircraft were used to extend the profile to the ground and upper troposphere respectively.
机译:大气汞(Hg)垂直分布的知识在确定汞的运输和循环中起着重要作用。但是,垂直分布的测量很少,因为空中测量价格昂贵且劳动强度大。因此,自1970年代以来,仅报道了一些垂直汞曲线测量。除了用于定期检查大气的民用飞机以外,1996年还测量了整个欧洲的最新垂直剖面。在全球汞观测系统(GMOS)项目中,船上还采用了四个垂直剖面研究飞机(CASA-212)于2013年8月在背景空气中飞过斯洛文尼亚和德国的不同地点。每个垂直剖面至少包含七个从地面500 m到3000 m a.s.l.的5分钟水平飞行段。使用Tekran 2537X和Tekran 2537B分析仪测量气态元素汞(GEM)和总气态汞(TGM)。除了测量汞含量之外,还测量了SO2,CO,O-3,NO和NO2的基本气象参数(压力,温度,相对湿度)。在德国Waldhof的GMOS主站点进行的其他地面汞测量以及在CARIBIC客机上的测量分别用于将剖面扩展到地面和对流层。

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