This course is an introduction to fundamental concepts of geophysical wave movement in rotating, stratified, and rotating-stratified fluids. Topic begins with normal wave ideas of part and group velocity. It additionally covers the dynamics and kinematics of gravity waves with a deal with dispersion, vitality flux, preliminary worth issues, and so on. Additionally addressed are topic basis used to review inside and inertial waves, Kelvin, Poincare, and Rossby waves in homogeneous and stratified fluids. Laplace tidal equations are utilized to equatorial waves. Different matters embody: resonant interactions, potential vorticity, wave-mean circulate interactions, and instability.