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首页> 外文期刊>Journal of Geophysical Research. Biogeosciences >Humidification factors of aerosols from biomass burning in Brazil
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Humidification factors of aerosols from biomass burning in Brazil

机译：巴西生物质燃烧产生的气溶胶的增湿因子

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The light-scattering coefficient of aerosols from biomass burning was measured as a function of relative humidity (RH) and wavelength in four regions of Brazil extending from the cerrado to the primary forests of the Amazon Basin. At a wavelength of 550 nm the ratio of the light-scattering coefficient at a RH of 80% to that at an RH of 30% ranged from 1.01 to 1.51, with an average value of 1.16. The aerosol backscatter ratio as a function of RH decreased by 10 to 20% as the RH was increased from 30 to 80%. Measurements of the geometric growth of the aerosol with RH were consistent with the measured changes in light scattering. Use of these new measurements yields an estimate for the globally averaged direct radiative forcing by biomass burning aerosol of about 0.25 W m(-2). [References: 16]
机译：在巴西四个地区（从塞拉多延伸到亚马逊河流域的原始森林），测量了生物质燃烧产生的气溶胶的光散射系数与相对湿度（RH）和波长的关系。在550nm的波长下，在RH为80％时的光散射系数与在RH为30％时的光散射系数之比为1.01至1.51，平均值为1.16。随着RH从30％增加到80％，作为RH的函数的气溶胶反向散射比降低了10％到20％。 RH气溶胶几何生长的测量结果与光散射的变化一致。使用这些新的测量值可得出生物质燃烧气溶胶的全球平均直接辐射强迫估计值约为0.25 W m（-2）。 [参考：16]

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