Meteorology is a branch of physics, though it used to be known as a branch of geography. Meteorology deals with weather, forecasting, and the layers of the atmosphere. The layers of the atmosphere are troposphere, stratmosphere, and ionosphere. It also deals with the methods and tools used to determine the weather and the changes in weather. Such as the wind or rain and the warmth or the cold. Overall meteorology deals with the changes in the atmosphere.