%0 Journal Article %1 Woollings2018Daily %A Woollings, Tim %A Barnes, Elizabeth %A Hoskins, Brian %A Kwon, Young-Oh %A Lee, Robert W. %A Li, Camille %A Madonna, Erica %A McGraw, Marie %A Parker, Tess %A Rodrigues, Regina %A Spensberger, Clemens %A Williams, Keith %D 2018 %J Journal of Climate %K 20CR MyUKCPStorylinesWork blocking colleagues dynamics jet %N 4 %P 1297--1314 %R 10.1175/jcli-d-17-0286.1 %T Daily to Decadal Modulation of Jet Variability %U http://dx.doi.org/10.1175/jcli-d-17-0286.1 %V 31 %X The variance of a jet's position in latitude is found to be related to its average speed: when a jet becomes stronger, its variability in latitude decreases. This relationship is shown to hold for observed midlatitude jets around the world and also across a hierarchy of numerical models. North Atlantic jet variability is shown to be modulated on decadal time scales, with decades of a strong, steady jet being interspersed with decades of a weak, variable jet. These modulations are also related to variations in the basinwide occurrence of high-impact blocking events. A picture emerges of complex multidecadal jet variability in which recent decades do not appear unusual. An underlying barotropic mechanism is proposed to explain this behavior, related to the change in refractive properties of a jet as it strengthens, and the subsequent effect on the distribution of Rossby wave breaking.

@article{Woollings2018Daily, abstract = {The variance of a jet's position in latitude is found to be related to its average speed: when a jet becomes stronger, its variability in latitude decreases. This relationship is shown to hold for observed midlatitude jets around the world and also across a hierarchy of numerical models. North Atlantic jet variability is shown to be modulated on decadal time scales, with decades of a strong, steady jet being interspersed with decades of a weak, variable jet. These modulations are also related to variations in the basinwide occurrence of high-impact blocking events. A picture emerges of complex multidecadal jet variability in which recent decades do not appear unusual. An underlying barotropic mechanism is proposed to explain this behavior, related to the change in refractive properties of a jet as it strengthens, and the subsequent effect on the distribution of Rossby wave breaking.}, added-at = {2018-06-18T21:23:34.000+0200}, author = {Woollings, Tim and Barnes, Elizabeth and Hoskins, Brian and Kwon, Young-Oh and Lee, Robert W. and Li, Camille and Madonna, Erica and McGraw, Marie and Parker, Tess and Rodrigues, Regina and Spensberger, Clemens and Williams, Keith}, biburl = {https://www.bibsonomy.org/bibtex/20c1c37cc6bebb31cf3578c01161485b5/pbett}, citeulike-article-id = {14528587}, citeulike-linkout-0 = {http://dx.doi.org/10.1175/jcli-d-17-0286.1}, doi = {10.1175/jcli-d-17-0286.1}, interhash = {afa89629e74c3b6521c11ee50fe2396e}, intrahash = {0c1c37cc6bebb31cf3578c01161485b5}, issn = {0894-8755}, journal = {Journal of Climate}, keywords = {20CR MyUKCPStorylinesWork blocking colleagues dynamics jet}, month = feb, number = 4, pages = {1297--1314}, posted-at = {2018-02-02 14:23:53}, priority = {2}, timestamp = {2020-03-13T16:19:11.000+0100}, title = {Daily to Decadal Modulation of Jet Variability}, url = {http://dx.doi.org/10.1175/jcli-d-17-0286.1}, volume = 31, year = 2018 }