Anti-persistence in the global temperature anomaly fieldReportar como inadecuado

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1 Dept. of Atmospheric Sciences 2 Institute for Computational Earth System Sciences 3 Dept. of Mathematical Sciences 4 Dept. of Physical Oceanography

Abstract : 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 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.

Autor: L. M. V. Carvalho - A. A. Tsonis - C. Jones - H. R. Rocha - P. S. Polito -



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