Impact of a projected future Arctic Sea Ice reduction on extratropical storminess and the NAO Export

@article{citeulike:6064313, abstract = {Abstract\ \ The impact of a reduced Arctic sea ice cover on wintertime extratropical storminess is investigated by conducting atmospheric general circulation model (AGCM) experiments. The AGCM ECHAM5 is forced by the present and a projected future seasonal cycle of Arctic sea ice. In the experiment with projected sea-ice concentrations significant reductions in storminess were found during December and January in both midlatitudes and towards the Arctic. However, a substantially larger reduction in extratropical storminess was found in March, despite a smaller change in surface energy fluxes in March than in the other winter months. The projected decrease in storminess is also related to the negative phase of the North Atlantic Oscillation (NAO). The March response is consistent with a forcing from transient and quasi-stationary eddies associated with negative NAO events. The greater sensitivity to sea-ice anomalies in late winter sets this study apart from earlier ones.}, author = {Seierstad, Ivar and Bader, J\"{u}rgen}, citeulike-article-id = {6064313}, citeulike-linkout-0 = {http://dx.doi.org/10.1007/s00382-008-0463-x}, citeulike-linkout-1 = {http://www.springerlink.com/content/f843225242338024}, day = {1}, doi = {10.1007/s00382-008-0463-x}, journal = {Climate Dynamics}, keywords = {arctic, cryosphere, midlatitudes}, month = {December}, number = {7}, pages = {937--943}, posted-at = {2009-11-03 19:50:01}, priority = {2}, title = {Impact of a projected future Arctic Sea Ice reduction on extratropical storminess and the NAO}, url = {http://dx.doi.org/10.1007/s00382-008-0463-x}, volume = {33}, year = {2009} }

TY - JOUR ID - citeulike:6064313 L3 - citeulike-article-id:6064313 N2 - Abstract  The impact of a reduced Arctic sea ice cover on wintertime extratropical storminess is investigated by conducting atmospheric general circulation model (AGCM) experiments. The AGCM ECHAM5 is forced by the present and a projected future seasonal cycle of Arctic sea ice. In the experiment with projected sea-ice concentrations significant reductions in storminess were found during December and January in both midlatitudes and towards the Arctic. However, a substantially larger reduction in extratropical storminess was found in March, despite a smaller change in surface energy fluxes in March than in the other winter months. The projected decrease in storminess is also related to the negative phase of the North Atlantic Oscillation (NAO). The March response is consistent with a forcing from transient and quasi-stationary eddies associated with negative NAO events. The greater sensitivity to sea-ice anomalies in late winter sets this study apart from earlier ones. IS - 7 JF - Climate Dynamics EP - 943 TI - Impact of a projected future Arctic Sea Ice reduction on extratropical storminess and the NAO VL - 33 SP - 937 KW - arctic KW - cryosphere KW - midlatitudes AU - Seierstad, Ivar AU - Bader, Jürgen PY - 2009/12/01/ UR - http://dx.doi.org/10.1007/s00382-008-0463-x ER -