Quasi-Biennial Oscillations in Tropospheric Energy

A. J. Miller Air Resources Laboratories, Environmental Research Laboratories, NOAA, Silver Spring, Md. 20910

Search for other papers by A. J. Miller in
Current site
Google Scholar
PubMed
Close
,
J. K. Angell Air Resources Laboratories, Environmental Research Laboratories, NOAA, Silver Spring, Md. 20910

Search for other papers by J. K. Angell in
Current site
Google Scholar
PubMed
Close
, and
J. Korshover Air Resources Laboratories, Environmental Research Laboratories, NOAA, Silver Spring, Md. 20910

Search for other papers by J. Korshover in
Current site
Google Scholar
PubMed
Close
Restricted access

Abstract

Evidence is presented for an approximate year-to-year variation of the zonal available potential (AZ), eddy available potential (AE), zonal kinetic (KZ) and eddy kinetic energy (KE) in the extra-tropical troposphere between 1962 and 1971. A modification of the oscillations occurs after 1968 due to as yet undetermined causes, but prior to this there is a fairly significant correlation between these oscillations and the quasi-biennial zonal wind variation in the low tropical stratosphere. The results indicate a relative in-phase relationship between the AZ, KZ and AE, KE terms and a relative out-of-phase relationship between the AZ, AE and KZ, KE terms.

Abstract

Evidence is presented for an approximate year-to-year variation of the zonal available potential (AZ), eddy available potential (AE), zonal kinetic (KZ) and eddy kinetic energy (KE) in the extra-tropical troposphere between 1962 and 1971. A modification of the oscillations occurs after 1968 due to as yet undetermined causes, but prior to this there is a fairly significant correlation between these oscillations and the quasi-biennial zonal wind variation in the low tropical stratosphere. The results indicate a relative in-phase relationship between the AZ, KZ and AE, KE terms and a relative out-of-phase relationship between the AZ, AE and KZ, KE terms.

Save