Meteorology and hydrology compose the interdisciplinary field of hydrometeorology. Meteorological phenomena are observable weather events that are explained by the science of meteorology. Its scientific results covered extensive ground in biology, zoology, geology, meteorology and magnetism. Climatology deals with the aggregate data that meteorology has collected. The project included extensive studies of geology, biology, meteorology and exploration. This developed his interest in meteorology and geology. It is part of the Department of Physics, Astronomy, and Meteorology. Agronomy encompasses work in the areas of plant genetics, plant physiology, meteorology, and soil science. Meteorologists are scientists who study and work in the field of meteorology. It is used for both meteorology and astronomy. They study engineering, earth and space science, meteorology and space station systems. Humboldt is also credited with laying the foundations of physical geography, meteorology, and especially biogeography. Her work helped the field of meteorology and weather prediction. Kallay-Christopher Hall opened in 2004 and is home to the Department of Geography and Meteorology. He became an instructor in meteorology and radio telegraphy.