• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>SOLA: Scientific Online Letters on the Atmosphere >Spectral Dependency of Aerosol Light-Absorption over the East China Sea Region
【24h】

Spectral Dependency of Aerosol Light-Absorption over the East China Sea Region

机译：东海地区气溶胶光吸收的光谱依赖性

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

References(20) Cited-By(4) Supplementary materials(2) We studied the spectral dependencies of aerosol light-absorption over the East China Sea region using sky radiometer data collected at Cape Hedo (26.87°N, 128.25°E), Okinawa, Japan from 2006 to 2008. Absorption Angstrom Exponent (AAE) was around 1 for most of the observation data, indicating black carbon (BC) as the dominant light-absorbing aerosol. However, high values of AAE were often found in the spring season. Aerosols with such high AAE were characterized by comparatively high optical thickness (τ), low single scattering albedo (ω), and an increase of ω with wavelength (λ). Additionally, dust aerosols were considerably high when such high AAEs were observed. Such high AAEs could not be explained by considering only BC and dust as absorbing aerosols, but could be well explained by including the role of brown carbon aerosols. This finding highlights a complex scenario of light-absorbing aerosols in the spring season in this region, and suggests the necessity of considering the role of such brown carbon aerosols on a light-absorption phenomenon for adequately understanding aerosol climatology. The study also discussed that AAE of dust aerosol should be used with care with the known size distribution and spectral values of the imaginary refractive index.
机译：参考文献（20）被引用的文献（4）补充材料（2）我们使用在冲绳海角（26.87°N，128.25°E）收集的天空辐射计数据研究了东海地区气溶胶光吸收的光谱依赖性日本从2006年至2008年。大多数观测数据的吸收埃指数（AAE）约为1，表明黑碳（BC）是主要的吸光气溶胶。但是，经常在春季发现较高的AAE值。具有如此高的AAE的气溶胶的特征在于相对较高的光学厚度（τ），较低的单散射反照率（ω）和ω随着波长（λ）的增加。另外，当观察到如此高的AAE时，粉尘气溶胶相当高。不能通过仅将BC和粉尘视为吸收性气溶胶来解释如此高的AAE，但可以通过包括棕色碳气溶胶的作用来很好地解释。这一发现突显了该地区春季吸光气溶胶的复杂情况，并表明有必要考虑此类棕碳气溶胶对光吸收现象的作用，以充分了解气溶胶气候。该研究还讨论了应谨慎使用粉尘气溶胶的AAE，且应使用已知的大小分布和虚折射率的光谱值。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号