南黄海海面大气长波辐射计算方法的比较

Comparison Among Computational Methods for Atmospheric Longwave Radiation Above Sea Surface in the Southern Yellow Sea

利用了"中国近海海洋综合调查与评价"项目在南黄海区获得的海-气通量观测资料,对一些常用的计算海面大气长波辐射通量的经验公式进行了比较。结果表明,采用Clark和Josey各自提出的经验公式所得的计算结果与实测结果具有较好的一致性;而利用Bignami和Bunker提出的经验公式计算的海面大气长波辐射通量值与实测资料则存在着较大的误差。出现差别的原因可能与不同经验公式所选参数密切相关。

Observational data of the air-sea flux, which are obtained in the southern Yellow Sea for imple-menting the project “Comprehensive Survey and Evaluation in Chinese Near-shore”, are utilized to compare the commonly used empirical formulae for estimating the atmospheric longwave radiation flux above sea surface. It is shown from the results that the estimated values respectively from the formula by clark et al and from the formula by Josey et al are better consistent with the observed values, and more deviation from the observed values can be found in the estimated values respectively from the formula by Bignami et al and from the formula by Bunker. The reason for explaining the difference among the results from the es- timation methods might be related to the expressions of the selected variables in the various formulae.