TY - JOUR AU - Richter, Jadwiga H. AU - Matthes, Katja AU - Calvo Fernández, Natalia AU - Gray, Lesley J. PY - 2011 DO - 10.1029/2011JD015757 SN - 0148-0227 UR - https://hdl.handle.net/20.500.14352/44204 T2 - Journal of geophysical research-atmospheres AB - Stratospheric sudden warmings (SSWs) are a major source of variability during Northern Hemisphere winter. The frequency of occurrence of SSWs is influenced by El Nino-Southern Oscillation (ENSO), the quasi-biennial oscillation (QBO), the 11 year solar... LA - eng PB - American Geophysical Union KW - 11-Year solar-cycle KW - Northern-hemisphere KW - Winter stratosphere KW - Model KW - Circulation KW - QBO KW - Variability KW - Simulations KW - Atmosphere KW - Regimes TI - Influence of the quasi-biennial oscillation and El Niño-Southern Oscillation on the frequency of sudden stratospheric warmings TY - journal article VL - 116 ER -