Relative Contribution of Greenhouse Gases and Ozone-Depleting Substances to Temperature Trends in the Stratosphere: A Chemistry–Climate Model StudySource: Journal of Climate:;2010:;volume( 023 ):;issue: 001::page 28Author:Stolarski, Richard S.
,
Douglass, Anne R.
,
Newman, Paul A.
,
Pawson, Steven
,
Schoeberl, Mark R.
DOI: 10.1175/2009JCLI2955.1Publisher: American Meteorological Society
Abstract: The temperature of the stratosphere has decreased over the past several decades. Two causes contribute to that decrease: well-mixed greenhouse gases (GHGs) and ozone-depleting substances (ODSs). This paper addresses the attribution of temperature decreases to these two causes and the implications of that attribution for the future evolution of stratospheric temperature. Time series analysis is applied to simulations of the Goddard Earth Observing System Chemistry?Climate Model (GEOS CCM) to separate the contributions of GHGs from those of ODSs based on their different time-dependent signatures. The analysis indicates that about 60%?70% of the temperature decrease of the past two decades in the upper stratosphere near 1 hPa and in the lower midlatitude stratosphere near 50 hPa resulted from changes attributable to ODSs, primarily through their impact on ozone. As ozone recovers over the next several decades, the temperature should continue to decrease in the middle and upper stratosphere because of GHG increases. The time series of observed temperature in the upper stratosphere is approaching the length needed to separate the effects of ozone-depleting substances from those of greenhouse gases using temperature time series data.
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contributor author | Stolarski, Richard S. | |
contributor author | Douglass, Anne R. | |
contributor author | Newman, Paul A. | |
contributor author | Pawson, Steven | |
contributor author | Schoeberl, Mark R. | |
date accessioned | 2017-06-09T16:29:29Z | |
date available | 2017-06-09T16:29:29Z | |
date copyright | 2010/01/01 | |
date issued | 2010 | |
identifier issn | 0894-8755 | |
identifier other | ams-68819.pdf | |
identifier uri | http://onlinelibrary.yabesh.ir/handle/yetl/4210419 | |
description abstract | The temperature of the stratosphere has decreased over the past several decades. Two causes contribute to that decrease: well-mixed greenhouse gases (GHGs) and ozone-depleting substances (ODSs). This paper addresses the attribution of temperature decreases to these two causes and the implications of that attribution for the future evolution of stratospheric temperature. Time series analysis is applied to simulations of the Goddard Earth Observing System Chemistry?Climate Model (GEOS CCM) to separate the contributions of GHGs from those of ODSs based on their different time-dependent signatures. The analysis indicates that about 60%?70% of the temperature decrease of the past two decades in the upper stratosphere near 1 hPa and in the lower midlatitude stratosphere near 50 hPa resulted from changes attributable to ODSs, primarily through their impact on ozone. As ozone recovers over the next several decades, the temperature should continue to decrease in the middle and upper stratosphere because of GHG increases. The time series of observed temperature in the upper stratosphere is approaching the length needed to separate the effects of ozone-depleting substances from those of greenhouse gases using temperature time series data. | |
publisher | American Meteorological Society | |
title | Relative Contribution of Greenhouse Gases and Ozone-Depleting Substances to Temperature Trends in the Stratosphere: A Chemistry–Climate Model Study | |
type | Journal Paper | |
journal volume | 23 | |
journal issue | 1 | |
journal title | Journal of Climate | |
identifier doi | 10.1175/2009JCLI2955.1 | |
journal fristpage | 28 | |
journal lastpage | 42 | |
tree | Journal of Climate:;2010:;volume( 023 ):;issue: 001 | |
contenttype | Fulltext |