摘要
讨论了水-气交界面上大气稳定度对C_D与U_(10)和U.与U_(10)等关系的影响,还探讨C_D如何受制于大气稳定度参量(TV)。指出大气稳定度的效应是明显的。由于所得的方程是以湖泊、内陆海、海湾和海洋的实测资料为基础的,且数据达605组之多,故文中方程较具普遍性。所提方程都经初步验证。
Both the effects of the atmospheric stability on the relationships between the drag coefficient, CD, and the wind speed, U10, and between U10 and the frictional velocity, U. , and the way CD is controled by the atmospheric stability parameter, TV(=((T -T )/U102)×102). are discussed , where T and U10 are the air temperature in ℃ and wind speed in m/s at 10m height above air -water interface respectively; T the water surface temperature in ℃. The results show that the effects of TV are remarkable. The relationships between various quantities are presented by regression equations , whose coefficients describe the effects of TV. The number of data used to set up the equations is as large as 605 sets, including observations from lakes, inland seas, bays and open seas. Therefore,there is more generality in the obtained results. All the proposed equations have been verified preliminarily.
基金
国家自然科学基金4870274
关键词
大气稳定度
水-气交界面
物理量
Atmospheric stability
air -water interface
drag coefficient
the rela-tionships between the four physical qualities (CD, U10, U, and |TV|)
