The parametrization of entrainment in cloudy boundary layers
The parametrization of entrainment in cloudy boundary layers
复制标题
多云边界层中夹带的参数化
DOI：
10.1002/qj.49712455210
复制
发表时间：
1998
影响因子：
8.9
通讯作者：
A. Lock
中科院分区：
文献类型：
--
作者：
A. Lock
推导了无切变对流性有云边界层夹卷率的参数化方案。它所需的唯一信息是外部混合层湍流强迫（地表浮力通量和净辐射散度廓线）、温度和湿度的逆温跃变、云顶液态水混合比以及云体和混合层深度。尽管该方案很简单，但发现它与大量大涡模拟以及层积云观测结果都能很好地吻合。
A parametrization for the entrainment rate in shear‐free convective cloud‐capped boundary layers is derived. The only information it requires is the external mixed‐layer turbulence forcings (the surface buoyancy flux and the net radiative‐divergence profile), the inversion jumps of temperature and humidity, the cloud‐top liquid water mixing ratio and the cloud and mixed‐layer depths. Despite this simplicity it is found to compare well against both a wide range of large‐eddy simulations and observations of stratocumulus.