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首页> 外文期刊>Journal of Applied Meteorology >Solar radiation absorption due to water vapor: advanced broadband parameterizations
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Solar radiation absorption due to water vapor: advanced broadband parameterizations

机译：水蒸气导致的太阳辐射吸收：先进的宽带参数设置

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摘要

Accurate parameterizations for calculating solar radiation absorption in the atmospheric column due to water vapor lines and continuum are proposed for use in broadband shortwave radiative transfer codes. The error in the absorption values is less than 1.5 W m~(-2) as compared with the values obtained by the line-by-line method for the three standard atmospheres and solar zenith angles of 30 deg and 75 deg. The error in the heating rates is less than 0.1 K day~(-1) at most of the atmospheric levels. The additional absorption of solar radiation due to the water vapor continuum was also estimated. Its magnitude in the total near-infrared region of the solar spectrum is noticeable and reaches 13.0 W m 2 (6.4% from the water vapor absorption in lines) for the tropical atmosphere and solar zenith angle of 30~. Therefore. using of the proposed parameterizations can help to obtain better agreements between the solar radiative fluxes calculated and measured at the earth's surface.
机译：提出了用于计算大气柱中由于水蒸气线和连续体而引起的太阳辐射吸收的精确参数化，以用于宽带短波辐射传输代码。与通过逐行方法获得的三个标准大气和30度和75度太阳天顶角的值相比，吸收值的误差小于1.5 W m〜（-2）。在大多数大气水平下，加热速率的误差小于0.1 K day〜（-1）。还估计了由于水蒸气连续性引起的太阳辐射的额外吸收。在热带大气和太阳天顶角为30°时，它在太阳光谱总近红外区域的大小很明显，达到13.0 W m 2（占线中水蒸气吸收的6.4％）。因此。使用建议的参数化可以帮助获得在地球表面计算和测量的太阳辐射通量之间的更好协议。

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