eCite Digital Repository
A representative time-series for the Southern Hemisphere zonal wave 1
Citation
Hobbs, WR and Raphael, MN, A representative time-series for the Southern Hemisphere zonal wave 1, Geophysical Research Letters, 34 Article L05702. ISSN 0094-8276 (2007) [Refereed Article]
![]() | PDF 355Kb |
Copyright Statement
Copyright 2007 American Geophysical Union.
Abstract
Recent studies show that an ENSO component of west
Antarctic climate variability is related to a persistent zonal
pressure anomaly in the south Pacific, which in turn is
related to the zonal wave 1 of the subpolar atmospheric
circulation. In order to promote further investigation into its
dynamics, a suite of time series are presented that describe
the intensity and location of ZW1. These time series are
shown to represent the SH zonally asymmetric circulation
reasonably well. Analysis of the time series suggests that,
consistent with previous research, there was a poleward and
eastward shift in ZW1 over the late 20th Century. There was
also an increase in amplitude variance over this period.
Cross-correlation confirms a link with ENSO, and suggests
a link between the subtropical and subpolar ZW1. Results
also indicate a significant local interaction between south
Pacific sea surface temperature and the intensity and
location of ZW1.
Item Details
Item Type: | Refereed Article |
---|---|
Keywords: | Southern Hemisphere atmosphere; climate dynamics |
Research Division: | Earth Sciences |
Research Group: | Atmospheric sciences |
Research Field: | Atmospheric dynamics |
Objective Division: | Environmental Policy, Climate Change and Natural Hazards |
Objective Group: | Understanding climate change |
Objective Field: | Effects of climate change on Antarctic and sub-Antarctic environments (excl. social impacts) |
UTAS Author: | Hobbs, WR (Dr Will Hobbs) |
ID Code: | 81125 |
Year Published: | 2007 |
Web of Science® Times Cited: | 14 |
Deposited By: | IMAS Research and Education Centre |
Deposited On: | 2012-11-22 |
Last Modified: | 2012-12-13 |
Downloads: | 359 View Download Statistics |
Repository Staff Only: item control page