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首页> 外文期刊>Journal of Geophysical Research. Biogeosciences >INVESTIGATIONS OF MARINE AEROSOLS OVER THE TROPICAL INDIAN OCEAN
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INVESTIGATIONS OF MARINE AEROSOLS OVER THE TROPICAL INDIAN OCEAN

机译:热带印度洋上的海洋气溶胶调查

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Results of the studies on the characteristics of marine aerosol optical depths made in remote regions of the tropical Indian Ocean using a multiwavelength solar radiometer, taken on a scientific cruise, are presented. The dependence of the aerosol optical depths on prevailing winds in marine boundary layer and on deck level relative humidity (RH) ale examined. Aerosol optical depths (tau(p)) in far oceanic regions with marine air mass prevailing, in general, are found to increase nearly exponentially with average wind speed (U-a) as tau(p) = tau(0) exp(a U-a), where a = 0.16 +/- 0.04. No association is seen with deck level relative humidity, as the effects of wind appear to offset the effects due to RH. The columnar size distributions retrieved from aerosol spectral optical depths reveal two modes, one at similar to 0.04 mu m and a secondary mode at similar to 0.8 mu m. The columnar mass loading estimated from the size distributions increases exponentially with wind speed and has a wind independent value of similar to 28 mg m(2). [References: 44]
机译:提出了使用多波长太阳辐射计对热带印度洋偏远地区进行的海洋气溶胶光学深度特征进行研究的结果,该结果是在科学巡航中进行的。气溶胶光学深度对海洋边界层中盛行风和甲板水平相对湿度(ale)的依赖性。通常,发现在以海洋气团为主的远洋地区,气溶胶光学深度(tau(p))随着平均风速(Ua)几乎成倍增加,因为tau(p)= tau(0)exp(a Ua) ,其中a = 0.16 +/- 0.04。没有观察到与甲板水平相对湿度的关联,因为风的影响似乎抵消了由于RH引起的影响。从气溶胶光谱光学深度取回的柱状尺寸分布揭示了两种模式,一种模式类似于0.04微米,另一种模式类似于0.8微米。根据尺寸分布估算的柱状质量载荷随风速呈指数增长,并且具有与风无关的值,类似于28 mg m(2)。 [参考:44]

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