Abstract: Recent extratropical ozone depletion and the concomitant increase in surface ultraviolet (UV) radiation may be expected to adversely influence the biosphere. Since few long-term, high quality datasets of surface UV are ...

Abstract: rivers of upwelling in the tropical lower stratosphere are investigated using the E39C-A chemistry?climate model. The climatological annual cycle in upwelling and its wave forcing are compared to the interim ECMWF Re-Analysis ...

Abstract: AbstractObserving systems consisting of a finite number of in situ monitoring stations can provide high-quality measurements with the ability to quality assure both the instruments and the data but offer limited information ...