[1] Stratospheric sulfate aerosol particles from strong volcanic eruptions produce significant transient cooling of the troposphere and warming of the lower stratosphere. The radiative impact of volcanic aerosols also produces a response that generally includes an anomalously positive phase of the Arctic Oscillation (AO) that is most pronounced in the boreal winter. The main atmospheric thermal...

Abstract. El Niño–Southern Oscillation (ENSO) modulates severe thunderstorm activity in the US, with increased expected during La Niña conditions. There is also evidence that influenced by Arctic (AO), positive phase being associated enhanced activity. The combined ENSO–AO impact relevant for situations such as early 2021, when persistent, strong and negative AO events occurred Here we examine ...

Measurements of ocean bottom pressure (OBP) anomalies from the satellitemissionGravity Recovery and Climate Experiment (GRACE), complemented by information from two ocean models, are used to investigate the variations and distribution of the Arctic Ocean mass from 2002 through 2011. The forcing and dynamics associated with the observed OBP changes are explored. Major findings are the identifica...

This article examines the influence of permanent center atmospheric action - Arctic anticyclone (Arctic High) on dynamics adjacent circulating oscillatory structures North Atlantic. Analysis variance was used to estimate degree state centers atmosphere in The High change pressure Icelandic minimum and Azores maximum is estimated at 48%. showed not statistical significance, confirmed by Fisher's...