Home

About

Advanced Search

Browse by Discipline

Scientific Societies

E-print Alerts

Add E-prints

E-print Network
FAQHELPSITE MAPCONTACT US


  Advanced Search  

 
Tellus 000, 000000 (0000) Printed 20 November 2010 (Tellus LATEX style file v2.2) On the meridional structure of extra-tropical Rossby
 

Summary: Tellus 000, 000000 (0000) Printed 20 November 2010 (Tellus LATEX style file v2.2)
On the meridional structure of extra-tropical Rossby
waves
By YOSEF ASHKENAZY1
, NATHAN PALDOR2
and YAIR ZARMI1
,
1Solar Energy and Environmental Physics, BIDR, Ben-Gurion University, Midreshet Ben-Gurion, 84990, Israel;
2Institute of Earth Sciences, The Hebrew University of Jerusalem, Jerusalem, 91904, Israel
20 November 2010
ABSTRACT
The common derivation of Rossby waves is based on the quasi-geostrophic ap-
proximation. A simple non-harmonic approximation for extratropical Rossby
waves on the sphere is proposed, in which the meridional coordinate is a
parameter instead of a continuous variable. It is shown that, in contrast to
the quasi-geostrophic solution, to first order the meridional structure of these
non-harmonic Rossby waves becomes irrelevant for determining the dispersion
relation in this theory. The proposed approximation accurately reproduces
numerical results obtained from runs of an ocean general circulation model
initiated from several initial meridional structures and captures the latitudi-

  

Source: Ashkenazy, Yossi "Yosef" - Department of Solar Energy and Environmental Physics, Jacob Blaustein Institutes for Desert Research,Ben-Gurion University of the Negev

 

Collections: Physics; Environmental Management and Restoration Technologies