Geophysical Fluid Dynamics (GFD) is the study of the movement of fluids in relation to the Earth's atmosphere and oceans. It combines principles from fluid dynamics, meteorology, and oceanography to understand how forces like gravity and the Earth's rotation affect fluid motion. GFD helps explain phenomena such as ocean currents, weather patterns, and climate change. Researchers in GFD use mathematical models and computer simulations to analyze fluid behavior on a large scale. This field is crucial for predicting weather events, understanding climate systems, and managing natural resources. By studying GFD, scientists can better comprehend the complex interactions between the Earth's fluids and the environment.