The Impact of Stratospheric Ozone Recovery on Tropopause Height Trends Export

@article{citeulike:4901757, abstract = {The evolution of the tropopause in the past, present, and future climate is examined by analyzing a set of long-term integrations with stratosphere-resolving chemistry climate models (CCMs). These CCMs have high vertical resolution near the tropopause, a model top located in the mesosphere or above, and, most important, fully interactive stratospheric chemistry. Using such CCM integrations, it is found that the tropopause pressure (height) will continue to decrease (increase) in the future, but with a trend weaker than that in the recent past. The reduction in the future tropopause trend is shown to be directly associated with stratospheric ozone recovery. A significant ozone recovery occurs in the Southern Hemisphere lower stratosphere of the CCMs, and this leads to a relative warming there that reduces the tropopause trend in the twenty-first century.The future tropopause trends predicted by the CCMs are considerably smaller than those predicted by the Intergovernmental Panel on Climate Change Fourth Assessment Report (AR4) models, especially in the southern high latitudes. This difference persists even when the CCMs are compared with the subset of the AR4 model integrations for which stratospheric ozone recovery was prescribed. These results suggest that a realistic representation of the stratospheric processes might be important for a reliable estimate of tropopause trends. The implications of these finding for the Southern Hemisphere climate change are also discussed.}, author = {Son, Seok-Woo and Polvani, Lorenzo M. and Waugh, Darryn W. and Birner, Thomas and Akiyoshi, Hideharu and Garcia, Rolando R. and Gettelman, Andrew and Plummer, David A. and Rozanov, Eugene}, citeulike-article-id = {4901757}, citeulike-linkout-0 = {http://dx.doi.org/10.1175/2008JCLI2215.1}, day = {1}, doi = {10.1175/2008JCLI2215.1}, journal = {Journal of Climate}, keywords = {ozone, recovery, tropopause}, month = {January}, number = {2}, pages = {429--445}, posted-at = {2009-06-19 09:36:37}, priority = {2}, title = {The Impact of Stratospheric Ozone Recovery on Tropopause Height Trends}, url = {http://dx.doi.org/10.1175/2008JCLI2215.1}, volume = {22}, year = {2009} }

TY - JOUR ID - citeulike:4901757 L3 - citeulike-article-id:4901757 N2 - The evolution of the tropopause in the past, present, and future climate is examined by analyzing a set of long-term integrations with stratosphere-resolving chemistry climate models (CCMs). These CCMs have high vertical resolution near the tropopause, a model top located in the mesosphere or above, and, most important, fully interactive stratospheric chemistry. Using such CCM integrations, it is found that the tropopause pressure (height) will continue to decrease (increase) in the future, but with a trend weaker than that in the recent past. The reduction in the future tropopause trend is shown to be directly associated with stratospheric ozone recovery. A significant ozone recovery occurs in the Southern Hemisphere lower stratosphere of the CCMs, and this leads to a relative warming there that reduces the tropopause trend in the twenty-first century.The future tropopause trends predicted by the CCMs are considerably smaller than those predicted by the Intergovernmental Panel on Climate Change Fourth Assessment Report (AR4) models, especially in the southern high latitudes. This difference persists even when the CCMs are compared with the subset of the AR4 model integrations for which stratospheric ozone recovery was prescribed. These results suggest that a realistic representation of the stratospheric processes might be important for a reliable estimate of tropopause trends. The implications of these finding for the Southern Hemisphere climate change are also discussed. IS - 2 JF - Journal of Climate EP - 445 TI - The Impact of Stratospheric Ozone Recovery on Tropopause Height Trends VL - 22 SP - 429 KW - ozone KW - recovery KW - tropopause AU - Son, Seok-Woo AU - Polvani, Lorenzo AU - Waugh, Darryn AU - Birner, Thomas AU - Akiyoshi, Hideharu AU - Garcia, Rolando AU - Gettelman, Andrew AU - Plummer, David AU - Rozanov, Eugene PY - 2009/01/01/ UR - http://dx.doi.org/10.1175/2008JCLI2215.1 ER -