搜索结果: 1-9 共查到“理学 Planetary waves”相关记录9条 . 查询时间(0.141 秒)
The same kind of large-scale planetary waves that meander through the atmosphere high above Earth's surface may also exist on the Sun, according to a new study led by a scientist at the National Cente...
The Role of Ekman flow and Planetary Waves in the Oceanic Cross-Equatorial Heat Transport
Ekman flow Oceanic Cross-Equatorial Heat Transport Planetary Waves
2009/2/16
A numerical model is used to mechanistically simulate the oceans’ seasonal cross-equatorial heat transport, and the results of Oort and Vonder Haar (1976). The basic process of Ekman pumping and drift...
Boundary-Forced Planetary Waves：A Simple Model Mid-Ocean Response to Strong Current Variability
Boundary-Forced Planetary Waves Mid-Ocean Response Strong Current Variability
2009/2/13
A simple linear model of the barotropic basin response to forcing imposed along the northern boundary is described. The dependence on latitude of the response may include oscillatory behavior or not, ...
Free Planetary Waves in Finite-Difference Numerical Models
Free Planetary Waves Finite-Difference Numerical Models
2009/1/12
The effects of spatial finite-differencing, viscosity and diffusion on unbounded planetary waves in numerical models are investigated using a quasi-geostrophic approximation to the midlatitude, β-plan...
The Speed of Observed and Theoretical Long Extratropical Planetary Waves
Theoretical Long Extratropical Planetary Waves Rossby waves
2008/11/26
Planetary or Rossby waves are the predominant way in which the ocean adjusts on long (year to decade) timescales. The motion of long planetary waves is westward, at speeds 1 cm s−1. Until recent...
On “Too Fast” Baroclinic Planetary Waves in the General Circulation
General Circulation Too Fast Baroclinic Planetary Waves
2008/10/27
Recent altimetric observations of the ocean surface reveal signatures of long planetary waves near the annual frequency band. Comparisons of the observed wave speeds and those predicted by standard li...
Evolution of Subduction Planetary Waves with Application to North Pacific Decadal Thermocline Variability
Subduction Planetary Waves North Pacific Decadal Thermocline Variability
2008/8/13
The evolution of decadal subduction temperature anomalies in the subtropical North Pacific is studied using a simple and a complex ocean model. It is found that the amplitude of the temperature anomal...
The Effect of Bottom Topography on the Speed of Long Extratropical Planetary Waves
Bottom Topography Speed of Long Extratropical Planetary Waves
2008/7/22
This paper examines how slowly varying topography induces changes in all aspects of long planetary wave propagation, including phase speed and surface signature, through steering effects. The approach...
The Modification of Long Planetary Waves by Homogeneous Potential Vorticity Layers
Long Planetary Waves Homogeneous Potential Vorticity Layers
2008/7/8
A mechanism by which long planetary waves in the ocean may propagate significantly faster than the classical long baroclinic Rossby waves is investigated. The mechanism depends on the poleward thicken...