THERMAL RADIATION FROM ATMOSPHERE
THERMAL RADIATION FROM ATMOSPHERE
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DOI：
10.1029/jc074i023p05397
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发表时间：
1969-01-01
影响因子：
--
通讯作者：
JACKSON, RD
中科院分区：
文献类型：
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作者：
IDSO, SB;JACKSON, RD
对大气热辐射的理论分析表明，以前将该参数与屏幕水平空气温度联系起来的公式缺乏普遍适用性。新的考虑表明，大气的有效发射率在273°K时最小，在较高和较低的温度下，它对称地增加，以指数方式接近1。一个公式，符合这些标准，适合阿拉斯加，亚利桑那州，澳大利亚和印度洋的相关系数为0.992的实验数据。大气辐射R在所有波长上的积分仅用屏面空气温度TasR = σT4{1-c exp [−d（273-T）2]}表示，其中常数的值分别为0.261和7.77×10−4。看来这个公式在所有纬度和季节都是有效的。
A theoretical analysis of atmospheric thermal radiation reveals that previous formulas relating this parameter to screen‐level air temperature have lacked universal applicability. New considerations indicate that the effective emittance of the atmosphere is a minimum at 273°K and that it increases symmetrically to approach unity exponentially at higher and lower temperatures. A formula is developed that meets these standards and fits experimental data from Alaska, Arizona, Australia, and the Indian Ocean with a correlation coefficient of 0.992. The atmospheric radiationRintegrated over all wavelengths, is specified solely in terms of the screen‐level air temperatureTasR= σT4{1 ‐ c exp [−d (273 ‐T)2]}, wherecanddare constants having values of 0.261 and 7.77×10−4, respectively. It appears that the formula may be valid at all latitudes and seasons.