Anti-persistence in the global temperature anomaly field

L. M. V. Carvalho, A. A. Tsonis, C. Jones, H. R. Rocha, P. S. Polito
2007 Nonlinear Processes in Geophysics  
<p><strong>Abstract.</strong> In this study, low-frequency variations in temperature anomaly are investigated by mapping temperature anomaly records onto random walks. We show evidence that global overturns in trends of temperature anomalies occur on decadal time-scales as part of the natural variability of the climate system. Paleoclimatic summer records in Europe and New-Zealand provide further support for these findings as they indicate that anti-persistence of temperature anomalies on
more » ... anomalies on decadal time-scale have occurred in the last 226 yrs. Atmospheric processes in the subtropics and mid-latitudes of the SH and interactions with the Southern Oceans seem to play an important role to moderate global variations of temperature on decadal time-scales.</p>
doi:10.5194/npg-14-723-2007 fatcat:g3xvdgx3sbemff7hsdir7f7qz4