Amplifying the Pacific Climate System Response to a Small 11-Year Solar Cycle Forcing Export

@article{citeulike:5662985, abstract = {One of the mysteries regarding Earth's climate system response to variations in solar output is how the relatively small fluctuations of the 11-year solar cycle can produce the magnitude of the observed climate signals in the tropical Pacific associated with such solar variability. Two mechanisms, the top-down stratospheric response of ozone to fluctuations of shortwave solar forcing and the bottom-up coupled ocean-atmosphere surface response, are included in versions of three global climate models, with either mechanism acting alone or both acting together. We show that the two mechanisms act together to enhance the climatological off-equatorial tropical precipitation maxima in the Pacific, lower the eastern equatorial Pacific sea surface temperatures during peaks in the 11-year solar cycle, and reduce low-latitude clouds to amplify the solar forcing at the surface. 10.1126/science.1172872}, author = {Meehl, Gerald A. and Arblaster, Julie M. and Matthes, Katja and Sassi, Fabrizio and van Loon, Harry}, citeulike-article-id = {5662985}, citeulike-linkout-0 = {http://dx.doi.org/10.1126/science.1172872}, citeulike-linkout-1 = {http://www.sciencemag.org/cgi/content/abstract/325/5944/1114}, citeulike-linkout-2 = {http://view.ncbi.nlm.nih.gov/pubmed/19713524}, citeulike-linkout-3 = {http://www.hubmed.org/display.cgi?uids=19713524}, day = {28}, doi = {10.1126/science.1172872}, journal = {Science}, keywords = {atmosphere, climate, cloud, coupled, feedback, gcm, model, natural, ocean, ozone, periodic, radiative-forcing, shortwave, solar, stratosphere, tropics}, month = {August}, number = {5944}, pages = {1114--1118}, posted-at = {2009-09-07 22:44:59}, priority = {2}, title = {Amplifying the Pacific Climate System Response to a Small 11-Year Solar Cycle Forcing}, url = {http://dx.doi.org/10.1126/science.1172872}, volume = {325}, year = {2009} }

TY - JOUR ID - citeulike:5662985 L3 - citeulike-article-id:5662985 N2 - One of the mysteries regarding Earth's climate system response to variations in solar output is how the relatively small fluctuations of the 11-year solar cycle can produce the magnitude of the observed climate signals in the tropical Pacific associated with such solar variability. Two mechanisms, the top-down stratospheric response of ozone to fluctuations of shortwave solar forcing and the bottom-up coupled ocean-atmosphere surface response, are included in versions of three global climate models, with either mechanism acting alone or both acting together. We show that the two mechanisms act together to enhance the climatological off-equatorial tropical precipitation maxima in the Pacific, lower the eastern equatorial Pacific sea surface temperatures during peaks in the 11-year solar cycle, and reduce low-latitude clouds to amplify the solar forcing at the surface. 10.1126/science.1172872 IS - 5944 JF - Science EP - 1118 TI - Amplifying the Pacific Climate System Response to a Small 11-Year Solar Cycle Forcing VL - 325 SP - 1114 KW - atmosphere KW - climate KW - cloud KW - coupled KW - feedback KW - gcm KW - model KW - natural KW - ocean KW - ozone KW - periodic KW - radiative-forcing KW - shortwave KW - solar KW - stratosphere KW - tropics AU - Meehl, Gerald AU - Arblaster, Julie AU - Matthes, Katja AU - Sassi, Fabrizio AU - van Loon, Harry PY - 2009/08/28/ UR - http://dx.doi.org/10.1126/science.1172872 ER -