Abstract: The degree to which Northern Hemisphere blocking activity is controlled by variations in zonal mean conditions is investigated. A set of Northern Hemisphere winter season 500-hPa analyzed fields is examined for blocks using ...

Abstract: A new mass-conserving and quasi-monotonic antidiffusive filter has been designed for application in semi-Lagrangian-type models. The filter redistributes local mass such that the resulting values are brought closer to ...

Abstract: A locally mass conservative shallow-water model using a two-time-level, semi-implicit, semi-Lagrangian integration scheme is presented. The momentum equations are solved with the traditional semi-Lagrangian gridpoint form. ...

Abstract: n this study, southward intertropical convergence zone (ITCZ) shifts are investigated in three different scenarios: Northern Hemispheric cooling, Southern Hemispheric warming, and a bipolar seesaw-like forcing that combines ...