This work owes its origin to discussions held by BZ with P. Alpert of Tel Aviv University, while he was a Ph.D. candidate there. N. Paldor acknowledges the financial support provided by the U.S.–Israel Bi-national Science Foundation via a research grant to the Hebrew University of Jerusalem. The comments of three anonymous reviewers were constructive in improving the presentation of this work.
Bjerknes, J., 1951: Extratropical cyclones. Compendium of Meteorology, T. F. Malone, Ed., Amer. Meteor. Soc., 577–598.
——, and J. Holmboe, 1944: On the theory of cyclones. J. Meteor.,1, 1–22.
Cammas, J. P., and D. Ramond, 1989: Analysis and diagnosis of the composition of ageostrophic circulations in jet-front systems. Mon. Wea. Rev.,117, 2447–2462.
Dutkiewicz, S., and N. Paldor, 1994: On the mixing enhancement in a meandering jet due to the interaction with an eddy. J. Phys. Oceanog.,24, 2418–2423.
Dutton, J. A., 1976: The Ceaseless Wind, An Introduction to the Theory of Atmospheric Motion. McGraw-Hill, 579 pp.
Gill, A. E., 1982: Atmosphere-Ocean Dynamics. Academic Press, 662 pp.
Holton, J. R., 1992: An Introduction to Dynamic Meteorology. 2d ed. Academic Press, 507 pp.
Keyser, D., and M. A. Shapiro, 1986: A review of the structure and dynamics of upper-level frontal zones. Mon. Wea. Rev.,114, 452–499.
Nakamura, H., 1993: Horizontal divergence associated with zonally isolated jet streams. J. Atmos. Sci.,50, 2310–2313.
Newton, C. W., and A. Trevisan, 1984: Clinogenesis and frontogenesis in jet stream waves. Part I: Analytical relations to wave structure. J. Atmos. Sci.,41, 2717–2734.
Palmen, E., and C. Newton, 1969: Atmospheric Circulation Systems. Academic Press, 603 pp.
Peng, S., and R. T. Williams, 1986: Spatial instability of the barotropic jet with slow streamwise variation. J. Atmos. Sci.,43, 2430–2442.
Shapiro, M. A., and P. J. Kennedy, 1981: Research aircraft instruments of jet stream geostrophic and ageostrophic winds. J. Atmos. Sci.,38, 2642–2652.
Uccellini, L. W., and P. J. Kocin, 1987: The interaction of jet streak circulations during heavy snow events along the east coast of United States. Wea. Forecasting,2, 289–308.
——, D. Keyser, K. F. Brill, and C. H. Wash, 1985: The President’s Day cyclone of 18–19 February 1979: Influence of upstream trough amplification and associated tropopause folding on rapid cyclogenesis. Mon. Wea. Rev.,113, 962–988.