The iris hypothesis was proposed by an atmospheric physicist who was professor at what university?
Iris hypothesis The iris hypothesis is a hypothesis proposed by Richard Lindzen et al. in 2001 that suggested increased sea surface temperature in the tropics would result in reduced cirrus clouds and thus more infrared radiation leakage from Earth's atmosphere. His study of observed changes in cloud coverage and modeled effects on infrared radiation released to space as a result supported the hypothesis. This suggested infrared radiation leakage was hypothesized to be a negative feedback in which an initial warming would result in an overall cooling of the surface. The consensus view is that increased sea surface temperature would result in increased cirrus clouds and reduced infrared radiation leakage and therefore a positive feedback.
Louis J. Battan Louis Joseph Battan (February 9, 1923 – October 29, 1986) was an American atmospheric scientist who received his doctorate from the University of Chicago in 1953, where he was hired to work in the field of the physics of clouds and precipitation. In 1958 he was appointed professor of meteorology and associate director of the Institute of Atmospheric Physics at the University of Arizona in Tucson. He was a pioneer in cloud physics and radar meteorology.