NOAA
1950 B.Sc. Physics, Edinburgh University, Scotland
1954 Ph.D. Nuclear Physics, Edinburgh University
Dynamical and chemical variability in the tropical upper troposphere and lower stratosphere, with emphasis on the tropopause;
Aerosol nucleation and growth in the polar upper atmosphere;
Mechanisms of solar variability and its influence on global climate;
Effects of solar energetic particles on the Earth's atmosphere.
Natural and anthropogenic influences on the tropical lower stratosphere
last modified: May 23, 2011