EarthRef.org Reference Database (ERR)
Development and Maintenance by the EarthRef.org Database Team

Detailed Reference Information
Hamilton 1993
Hamilton, K. (1993). A general circulation model simulation of El Nino effects in the extratropical northern hemisphere stratosphere. Geophysical Research Letters 20: doi: 10.1029/93GL01782. issn: 0094-8276.

This paper examines the effects of imposed tropical Pacific sea surface temperature perturbations on the December-February mean circulation in the Northern Hemisphere stratosphere as simulated by the GFDL ''SKYHI'' troposphere-stratosphere-mesosphere GCM. The results are in impressive agreement with observational studies that have shown that, on average, ENSO events are associated with a mixed zonal wave 1 and 2 perturbation to the stratospheric stationary wave field (phased so that the Aleutian High at midstratospheric levels is intensified). This is a useful test of the sensitivity of the model stratospheric climate to changes in tropospheric forcing. These results for the effects of the Pacific SST anomalies are used in a very rough estimate of the impact of year-to-year changes in SST on the interannual variability of the extratropical stratospheric circulation. The results of this calculation suggest that interannual SST variation accounts for only a small fraction of stratospheric variability at high latitudes. ¿ American Geophysical Union 1993

BACKGROUND DATA FILES

Abstract

Keywords
Meteorology and Atmospheric Dynamics, Middle atmosphere dynamics, Meteorology and Atmospheric Dynamics, Ocean-atmosphere interactions
Journal
Geophysical Research Letters
http://www.agu.org/journals/gl/
Publisher
American Geophysical Union
2000 Florida Avenue N.W.
Washington, D.C. 20009-1277
USA
1-202-462-6900
1-202-328-0566
service@agu.org
Click to clear formClick to return to previous pageClick to submit