TY - JOUR AU - Calvo Fernández, Natalia AU - Giorgetta, M. A. AU - Peña Ortiz, C. PY - 2007 DO - 10.1029/2006JD007844 SN - 0148-0227 UR - https://hdl.handle.net/20.500.14352/51074 T2 - Journal of geophysical research-atmospheres AB - The polar vortex in the Northern Hemisphere exhibits high intraseasonal and interannual variability which, to some degree, may be controlled by the quasi-biennial oscillation (QBO) in the tropical stratosphere. Here we analyze the QBO signal in the... LA - eng PB - American Geophysical Union KW - Northern-hemisphere winter KW - Stratospheric sudden warmings KW - Solar-cycle KW - Planetary-waves KW - Interannual variability KW - Equatorial QBO KW - Troposphere KW - Model KW - Winds KW - Propagation TI - Sensitivity of the boreal winter circulation in the middle atmosphere to the quasi-biennial oscillation in MAECHAM5 simulations TY - journal article VL - 112 ER -