| Citation | Plumb is distinguished for his pioneering work on atmospheric fluid dynamics and for connecting fluid-dynamical insight and cutting-edge numerical simulation techniques with new observational information from high-resolution, multi-species chemical measurements. He has brought to bear original thinking about lagrangian atmospheric transport leading to new insight into the interplay between chemical and dynamical effects, showing the way to a new generation of simplified global "ozone assessment models" having far greater realism than current such models while demanding less computer power. This will be of the highest importance in assessing the likely response of the ozone layer to, e.g., future subsonic and supersonic passenger aviation. Throughout his career, Plumb has consistently and repeatedly put his finger on key points about causal linkages in the atmosphere and made these points clear through outstandingly lucid papers and conference presentations, whilst upholding the highest standards of integrity and generosity to colleagues. One famous, influential and characteristic early example is the work that led to the 1978 Plumb-McEwan experiment, as it is often called, the laboratory analogue of the quasi-biennial oscillation of the zonal winds in the equatorial stratosphere. |