Observational and Model Evidence for Positive Low-Level Cloud Feedback Export

@article{clementS2009, abstract = {Feedbacks involving low-level clouds remain a primary cause of uncertainty in global climate model projections. This issue was addressed by examining changes in low-level clouds over the Northeast Pacific in observations and climate models. Decadal fluctuations were identified in multiple, independent cloud data sets, and changes in cloud cover appeared to be linked to changes in both local temperature structure and large-scale circulation. This observational analysis further indicated that clouds act as a positive feedback in this region on decadal time scales. The observed relationships between cloud cover and regional meteorological conditions provide a more complete way of testing the realism of the cloud simulation in current-generation climate models. The only model that passed this test simulated a reduction in cloud cover over much of the Pacific when greenhouse gases were increased, providing modeling evidence for a positive low-level cloud feedback. 10.1126/science.1171255}, author = {Clement, Amy C. and Burgman, Robert and Norris, Joel R.}, citeulike-article-id = {5250225}, citeulike-linkout-0 = {http://dx.doi.org/10.1126/science.1171255}, citeulike-linkout-1 = {http://www.sciencemag.org/content/325/5939/460.abstract}, citeulike-linkout-2 = {http://www.sciencemag.org/content/325/5939/460.full.pdf}, citeulike-linkout-3 = {http://www.sciencemag.org/cgi/content/abstract/325/5939/460}, citeulike-linkout-4 = {http://view.ncbi.nlm.nih.gov/pubmed/19628865}, citeulike-linkout-5 = {http://www.hubmed.org/display.cgi?uids=19628865}, day = {24}, doi = {10.1126/science.1171255}, journal = {Science}, keywords = {climate, cloud, models}, month = {July}, number = {5939}, pages = {460--464}, posted-at = {2009-10-01 12:23:17}, priority = {0}, title = {Observational and Model Evidence for Positive Low-Level Cloud Feedback}, url = {http://dx.doi.org/10.1126/science.1171255}, volume = {325}, year = {2009} }

TY - JOUR ID - clementS2009 L3 - citeulike-article-id:5250225 N2 - Feedbacks involving low-level clouds remain a primary cause of uncertainty in global climate model projections. This issue was addressed by examining changes in low-level clouds over the Northeast Pacific in observations and climate models. Decadal fluctuations were identified in multiple, independent cloud data sets, and changes in cloud cover appeared to be linked to changes in both local temperature structure and large-scale circulation. This observational analysis further indicated that clouds act as a positive feedback in this region on decadal time scales. The observed relationships between cloud cover and regional meteorological conditions provide a more complete way of testing the realism of the cloud simulation in current-generation climate models. The only model that passed this test simulated a reduction in cloud cover over much of the Pacific when greenhouse gases were increased, providing modeling evidence for a positive low-level cloud feedback. 10.1126/science.1171255 IS - 5939 JF - Science EP - 464 TI - Observational and Model Evidence for Positive Low-Level Cloud Feedback VL - 325 SP - 460 KW - climate KW - cloud KW - models AU - Clement, Amy AU - Burgman, Robert AU - Norris, Joel PY - 2009/07/24/ UR - http://dx.doi.org/10.1126/science.1171255 ER -