%0 Journal Article %1 Madonna2017Link %A Madonna, Erica %A Li, Camille %A Grams, Christian M. %A Woollings, Tim %D 2017 %I John Wiley & Sons, Ltd %J Q.J.R. Meteorol. Soc %K MySeclifirmWTwork blocking dynamics jet nao weathertypes %N 708 %P 2960--2972 %R 10.1002/qj.3155 %T The link between eddy-driven jet variability and weather regimes in the North Atlantic-European sector %U http://dx.doi.org/10.1002/qj.3155 %V 143 %X This study reconciles two perspectives on wintertime atmospheric variability in the North Atlantic–European sector: the zonal-mean framework comprising three preferred locations of the eddy-driven jet (southern, central, northern), and the weather regime framework comprising four classical North Atlantic-European regimes (Atlantic ridge AR, zonal ZO, European/Scandinavian blocking BL, Greenland anticyclone GA). A k-means clustering algorithm is used to characterize the two-dimensional variability of the eddy-driven jet stream, defined by the lower tropospheric zonal wind in the ERA-Interim reanalysis. The first three clusters capture the central jet and northern jet, along with a new mixed-jet configuration; a fourth cluster is needed to recover the southern jet. The mixed cluster represents a split or strongly tilted jet, neither of which is well described in the zonal-mean framework, and has a persistence of about one week, similar to the other clusters. Connections between the preferred jet locations and weather regimes are corroborated – southern to GA, central to ZO, and northern to AR. In addition, the new mixed cluster is found to be linked to European/Scandinavian blocking, whose relation to the eddy-driven jet was previously unclear.

@article{Madonna2017Link, abstract = {This study reconciles two perspectives on wintertime atmospheric variability in the North Atlantic–European sector: the zonal-mean framework comprising three preferred locations of the eddy-driven jet (southern, central, northern), and the weather regime framework comprising four classical North Atlantic-European regimes (Atlantic ridge AR, zonal ZO, European/Scandinavian blocking BL, Greenland anticyclone GA). A k-means clustering algorithm is used to characterize the two-dimensional variability of the eddy-driven jet stream, defined by the lower tropospheric zonal wind in the ERA-Interim reanalysis. The first three clusters capture the central jet and northern jet, along with a new mixed-jet configuration; a fourth cluster is needed to recover the southern jet. The mixed cluster represents a split or strongly tilted jet, neither of which is well described in the zonal-mean framework, and has a persistence of about one week, similar to the other clusters. Connections between the preferred jet locations and weather regimes are corroborated – southern to GA, central to ZO, and northern to AR. In addition, the new mixed cluster is found to be linked to European/Scandinavian blocking, whose relation to the eddy-driven jet was previously unclear.}, added-at = {2018-06-18T21:23:34.000+0200}, author = {Madonna, Erica and Li, Camille and Grams, Christian M. and Woollings, Tim}, biburl = {https://www.bibsonomy.org/bibtex/2bf2deccb933d8d4d3ede08275eb8b49d/pbett}, citeulike-article-id = {14425828}, citeulike-linkout-0 = {http://dx.doi.org/10.1002/qj.3155}, day = 1, doi = {10.1002/qj.3155}, interhash = {0b478a89ee7c822824ce788af2b2cc16}, intrahash = {bf2deccb933d8d4d3ede08275eb8b49d}, journal = {Q.J.R. Meteorol. Soc}, keywords = {MySeclifirmWTwork blocking dynamics jet nao weathertypes}, month = oct, number = 708, pages = {2960--2972}, posted-at = {2017-09-05 13:34:23}, priority = {2}, publisher = {John Wiley \& Sons, Ltd}, timestamp = {2019-08-14T12:56:37.000+0200}, title = {The link between eddy-driven jet variability and weather regimes in the North Atlantic-European sector}, url = {http://dx.doi.org/10.1002/qj.3155}, volume = 143, year = 2017 }