Also, the wave propagates slightly faster in the f -plane than the 尾 -plane. The dispersion relation derived from the third-order equation shows that the Rossby equation transports energy both eastward and westward and its speed is reduced successively and the propagation remains eastward. As ...
地球物理流体力学课件:Lecture 13 Rossby Wave and Topographic Wave.ppt,* (9.24) (9.25)代入 连续性方程 * (9.24) (9.25)代入 连续性方程 * 行星波,或者 Rossby 波, 为中纬度大气长波 * 再考虑cy, 在北半球, 相速度c=(cx,cy)向西传播, 西南传播, 西北传播, 但是不能向东
The northward Rossby wave energy dispersion from this center is favorable to the enhancement and maintenance of the mid-latitude anomaly center in the same... B Cholaw - 《科学通报(英文版)》 被引量: 129发表: 200...
地球物理 流体力学 课件 Lecture 13 Rossby Wave and Topographic 资源描述: 1、Lecture 13 A Rossby Wave 罗斯贝的研究兴趣非常广泛,在上世纪20年代主要研究大气湍流和气压变化理论,30年代先将研究重点集中在海洋学和气象学的边界层理论。30年代末期,他对大尺度环流的研究导致了大气长波理论的诞生。这是世界气象发展...
In the periodic setting discussed in Section 2.2, the relevant wavevectors (k,l) belong to a discrete lattice of integer numbers, so the resonant conditions (5), (6), (7) are now a system of Diophantine equations. For Rossby waves, the dispersion relation (3) applies, and after some ...
The effect of divergent wind excited by external thermal forcing on propagation of low frequency Rossby wave is investigated in a barotropic atmosphere. The dispersion relation and group velocity expression of low-frequency Rossby wave with divergent wind are derived. Theoretical analysis shows that for...
During austral spring, when the subtropical jet weakens, the Rossby wave train emanating from Indian Ocean convection is explained more traditionally by direct dispersion from divergence forcing at low latitudes. This is a preview of subscription content, log in via an institution to check access. ...
This limit follows from the dispersion relation and for long Rossby waves varies with latitude according to19 \(\omega _{{\mathrm{max}}} = \left( {c/2R} \right){\mathrm{cot}}\,\varphi\), where c is the baroclinic gravity-wave phase speed, R is the radius of the earth, and φ...
1、Lecture 13 A Rossby Wave,罗斯贝的研究兴趣非常广泛,在上世纪20年代主要研究大气湍流和气压变化理论,30年代先将研究重点集中在海洋学和气象学的边界层理论。30年代末期,他对大尺度环流的研究导致了大气长波理论的诞生。这是世界气象发展史上的一个重要里程碑。早期使用电子计算机制作的数值天气预报是通过对正压方程...
wave-like dynamics around the Rhines scale6of angular wavenumber of approximately 20. This transition might provide an explanation for the puzzling deficit of kinetic energy at the largest spatial scales. Access options Access Nature and 54 other Nature Portfolio journals...