Poisson's Equation is a fundamental partial differential equation that relates the spatial distribution of a scalar potential field to its sources, commonly expressed in the form $$ abla^2 heta = -\frac{g}{R} \rho$$, where $$\theta$$ is the potential temperature, $$g$$ is the acceleration due to gravity, $$R$$ is the specific gas constant, and $$\rho$$ is the density. This equation is essential in understanding how temperature variations influence atmospheric pressure and density during adiabatic processes.
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