广义涡度与位势涡度守恒定律及其应用  

CONSERVATIVE LAWS ON GENERALIZED VORTICITY AND POTENTIAL VORTICITY AND ITS APPLICATIONS

作　　者：伍荣生[1] 谈哲敏[1] 

机构地区：[1]南京大学大气科学系

出　　处：《气象学报》1989年第4期436-442,共7页Acta Meteorologica Sinica

摘　　要：在文中推得了广义涡度守恒定律,并利用此定律在一般情况下求得了广义位势涡度定律。它放宽了最初Ertel的位势涡度定律的限制条件。并对涡度拟能、螺旋性守恒定律的物理意义作了讨论,这些定律能够描述大气运动的重要动力学性质。In this paper, a generalized vorticity equation is derived to obtain the conservative law on generalized potential vorticity which relaxes the limitation of initial theorem proposed by Ertel. The conservative laws on enstrophy and heli-city and the physical meanings of these laws are also discussed. These conservative laws are useful for describing important dynamic properties of atmosphere motion.

关 键 词：广义涡度 位势涡度 守恒定律 

分 类 号：P433[天文地球—大气科学及气象学]