Sensible heat flux from the earth's surface under natural convective conditions
Sensible heat flux from the earth's surface under natural convective conditions
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DOI：
10.1175/1520-0469(1997)054
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发表时间：
1997-02-15
影响因子：
3.1
通讯作者：
Ishida, S
中科院分区：
文献类型：
--
作者：
Kondo, J;Ishida, S
通过室内和室内实验，确定了自然对流条件下感热交换速率CHU的数值。无论实验类型如何，CHU的关系式为CHU = B（T-s - T）（1/3）。对于湿表面，Δ T应替代（T-s - T）。这里，T-s是地面温度，T是空气温度，Δ T是虚拟温差。此外，B是一个系数，其值对于光滑表面为0.0011 m·s（-1）K-1/3，对于粗糙表面为0.0038 m·s（-1）K-1/3。根据现场观测资料，提出了在强不稳定条件下（-1 > xi > -477）的最佳稳定性剖面函数对。
A value for the exchange speed of sensible heat CHU under natural convective renditions was determined by both indoor and held experiments. Regardless of the type of experiment, the relationships for the CHU were obtained as CHU = b(T-s - T)(1/3). For a wet surface, Delta T, should be substituted for (T-s - T). Here, T-s is the ground surface temperature, T the air temperature, and Delta T, the virtual temperature difference. In addition, b is a coefficient having a value of 0.0011 m s(-1) K--1/3 for a smooth surface and 0.0038 m s(-1) K--1/3 over a rough surface. From the field observation data, it was concluded that under strongly unstable conditions (-1 > xi > -477) the best pair of stability profile functions was proposed.