摘要
对现有的大气模式中计算海面和大气间水、热通量的通量-廓线关系式进行了评论，提出一个理论上较完整的通量-廓线关系式。其中考虑了水汽对M－O参数的影响，并引进相应于虚位温的标量粗糙度。MoanaWave的实测资料表明，由于该资料相应于温度的粗糙度zoh和湿度粗糙度zoq相差不大，使现有的公式计算结果与文中提出的公式差别不大。当zoh，zoq差别大时，两种公式结果有一定的差别。而文中公式理论上更为合理。还将不稳定状态下计算通量的简化方法推广到海面。
The formula of flux-profile relationship to compute the moisture and heat fluxes over sea surface in the current atmospheric models is reviewed,and a new flux-profile re-lationship formula is suggested which is more reasonable theoretically,in which the ef-fect of moisture on Monin-Obukhov parameter is considered,a scalar roughness for vir-tual potential temperature is introduced. The computation of Moana Wave data showsthat the difference of the computed results between the current formula and the formulasuggested in this paper is small over sea surface because the difference between theroughnesses for temperature and humidity is not great for the used data. When the dif-ference between these two roughnesses is great,some differences appear,the formula in this paper is more reasonable. We also extend the simplified method for the computation of the fluxes in which the effect of moisture was not considered to sea surface in unsta-ble condition.
出处
《气象学报》
CSCD
北大核心
2000年第3期340-346,共7页
Acta Meteorologica Sinica
基金
国家自然科学基金!49575248
关键词
水
热通量
通量-廓线关系
虚位温粗糙度
大气模
Moisture and heat fluxes, Flux-profile relationship, Roughness for virtual potential temperature
