Primitive equations refer to a set of fundamental equations that model the dynamics of the atmosphere and oceans in geophysical fluid dynamics. These equations are a simplified version of the Navier-Stokes equations, tailored to account for the effects of rotation (due to Earth's rotation) and stratification (density variations due to temperature and salinity in oceans, or due to temperature differences in the atmosphere). The primitive equations typically include: 1. **Continuity Equation**: This represents the conservation of mass in the fluid.
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