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首页> 外文期刊>Journal of earth system science >Spatial distribution of atmospheric carbon monoxide over Bay of Bengal and Arabian Sea: Measurements during pre-monsoon period of 2006
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Spatial distribution of atmospheric carbon monoxide over Bay of Bengal and Arabian Sea: Measurements during pre-monsoon period of 2006

机译：孟加拉湾和阿拉伯海上大气一氧化碳的空间分布：2006年季风前的测量

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Indian Space Research Organization (ISRO)conducted the a€?Integrated Campaign for Aerosols, gases and Radiation Budget (ICARB)a€?for a two-month pre-monsoon period in 2006 with the ocean segment covering Bay of Bengal and Arabian Sea.During this campaign,carbon monoxide (CO) was continuously monitored using a non-dispersive IR analyser. Quantifying CO in ambient air is vital in determining the air quality of a region.Being toxic,CO is a criteria pollutant,but it is a weak green house gas.Globally,very few measurements exist over marine atmospheres to study its temporal pattern;particularly in situ CO measurements are few over the Bay of Bengal and Arabian Sea for comparison.Present measurements indicate:(i)predominant single peak in the diurnal pattern of CO over the marine atmosphere in contrast to the double peak over the continent, (ii)the mean diurnal CO over the marine atmosphere showing an increasing trend towards evening hours,(iii)the amplitude of the AN peaks over the marine atmosphere was a??100 ppbv,while at a remote island site in the Indian Ocean it was a??5 ppbv and (iv)high CO values were observed close to continent and the long range transport by wind also caused CO highs.
机译：印度空间研究组织（ISRO）在2006年的季风前期进行了为期两个月的“气溶胶，气体和辐射预算综合运动”（ICARB）a，其海洋部分覆盖了孟加拉湾和阿拉伯海。在这项运动期间，使用非分散红外分析仪连续监测一氧化碳（CO）。量化环境空气中的CO对确定区域的空气质量至关重要。由于有毒，CO是一种标准污染物，但它是一种弱温室气体。全球范围内，很少有测量海洋大气的方法来研究其时间格局;特别是用于比较的孟加拉湾和阿拉伯海的原位CO量很少。现有的测量表明：（i）海洋大气中CO的昼夜模式中的主要单峰与大陆上的双峰相反（ii） （iii）海洋大气中AN峰的振幅为？100 ppbv，而在印度洋的一个偏远岛屿上，则为？100 ppbv。在大陆附近观测到？5 ppbv和（iv）高的CO值，并且通过风的远距离运输也会引起CO高。

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