Earth science is a feild of study concerned with the planet earth or one or more of its parts
The three principal component disciplines of earth science is atmospheric science and its branches, Hydrologic science and its branches and geologic science and its branches
Atmospheric science and its branches: Aeronomy, Climatology and meteorology
Aeronomy is the study of the atmospheric regions above the lower stratosphere. It deals with the phenomena such as airglows, auroras and photochemical process
Climatology has something to do with the long term weather conditions on a global scale
Meteorology is primarily concerned with the short term weather conditions in the atmosphere
Weather forecasting is accurate predictions of the future weather conditions
Weather modification is to modify the weather such as suppressing the hail and fog and weaken hurricanes