FastFind »   Lastname: doi:10.1029/ Year: Advanced Search  

AGU: Geophysical Research Letters

 

Index Terms

  • Atmospheric Composition and Structure: General or miscellaneous
  • Global Change: Atmosphere
  • Atmospheric Composition and Structure: Middle atmosphere—composition and chemistry

Abstract

GEOPHYSICAL RESEARCH LETTERS, VOL. 29, 1451, 4 PP., 2002
doi:10.1029/2002GL014716

Trend analysis of upper stratospheric Umkehr ozone data for evidence of turnaround

Gregory C. Reinsel

Department of Statistics, University of Wisconsin, Madison, WI, USA

Recent upper stratospheric (∼35–45 km) Umkehr ozone data from three high-quality stations have been examined, with residual and change-in-trend analyses performed. These data show a consistent feature of mildly positive tendency in values for the recent several years. Trend analyses of these data yield significant positive change-in-trend estimates of about 0.75% per year since 1996 relative to negative trends of about −0.55% per year existing prior to 1996, leading to a (nonsignificant) estimate of about 0.2% per year positive trend for the recent 5-year period since the 1996 change-in-trend date.

Published 28 May 2002.

Citation: Reinsel, G. C. (2002), Trend analysis of upper stratospheric Umkehr ozone data for evidence of turnaround, Geophys. Res. Lett., 29(10), 1451, doi:10.1029/2002GL014716.

Cited By

Please wait one moment ...