Abstract: The National Rivers Authority (NRA) employs 8,000 people and anticipates spending £2 billion over the next four years protecting and improving the water environment in England and Wales. During this time the NRA will ...

Abstract: The theoretical development presented by Fraser can produce a spectrum of light that would be perceived as a faint green. The theory assumed a perfectly black background thunderstorm. Severe thunderstorms are certainly not ...

Abstract: It has been suggested that green light often observed in association with severe thunderstorms is caused by sunlight being reflected onto the cloud by green vegetation. Colorimetric observations were recorded of green-colored ...