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首页> 外文期刊>Journal of Geophysical Research. Biogeosciences >ATMOSPHERIC ABSORPTION DURING THE ATMOSPHERIC RADIATION MEASUREMENT (ARM) ENHANCED SHORTWAVE EXPERIMENT (ARESE)
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ATMOSPHERIC ABSORPTION DURING THE ATMOSPHERIC RADIATION MEASUREMENT (ARM) ENHANCED SHORTWAVE EXPERIMENT (ARESE)

机译：大气辐射测量（ARM）过程中的大气吸收增强了短波实验（ARESE）

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The objectives of the Atmospheric Radiation Measurement (ARM) Enhanced Shortwave Experiment (ARESE) are to directly measure clear and cloudy sky shortwave atmospheric absorption and to quantify any absorption found in excess of model predictions. We undertake detailed model comparisons to near-infrared and total solar flux time series observed by surface and airborne radiometric instruments during the ARESE campaign. Model clear-sky absorption biases generally fall within the range of uncertainty generated by sample size, and assumptions of aerosol properties and surface albedo. Direct measurements by stacked aircraft on the overcast day of October 30, 1995, confirm the detection of enhanced cloud shortwave absorption during ARESE. The detection is substantiated by, and consistent with, three independent measures of cloudy sky absorption estimated in previous studies: cloud forcing ratio, insolation forcing ratio, and albedo/transmission slope. A significant portion of the enhanced absorption occurs at visible wavelengths. Collocated measurements of liquid water path (LWP) suggest the magnitude of the enhanced absorption increases with LWP. [References: 30]
机译：大气辐射测量（ARM）增强短波实验（ARESE）的目标是直接测量晴朗和多云的短波大气吸收，并对超出模型预测值的任何吸收进行量化。我们对ARESE活动期间地面和机载辐射测量仪器观测到的近红外和总太阳通量时间序列进行了详细的模型比较。模型的晴空吸收偏差通常落在由样本大小以及气溶胶特性和表面反照率假设产生的不确定性范围内。在1995年10月30日的阴天，由堆叠式飞机进行的直接测量确认了在ARESE期间检测到增强的云短波吸收。该探测通过先前研究中估计的三种独立的多云天空吸收量度量得到证实，并与之保持一致：云团强迫比，日照强迫比和反照率/透射斜率。吸收的很大一部分发生在可见波长处。并排测量的液态水路径（LWP）表明，增强的吸收量随LWP的增加而增加。 [参考：30]

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