The Maxwell Mass Effect as a Model for the Venusian Atmosphere

This report places the Maxwell Mass Effect at the forefront of a coherent model for the Venusian atmosphere. The surface temperature is treated as the dependent variable required to support the atmospheric mass against gravity. Solar energy is captured in a shallow topside thermal heating pool, stored as potential energy, and returned to depth by organised descent in the polar vortices under conservation of angular momentum. The sulfuric-acid lifting condensation level (LCL) acts as the thermodynamic anchor (Dew-Point Anchor Hypothesis). A two-component radiative opacity lapse rate then fixes only the geometric separation between that LCL and the infrared emission level. Stochastic inverse modelling with a VIRA equatorial profile, hydrostatic integration and thermodynamic filters recovers a cloud base near 49.6 km, an emission level near 69.4 km at approximately 229 K, and a surface pressure of approximately 91.5 bar. An order-of-magnitude energy-budget test shows that the required polar mass flux lies within the range of observed vortex descent speeds. The same boundary conditions can be satisfied by a conventional greenhouse calculation, but only the Maxwell framework supplies a structural explanation for the polar vortices themselves. The report documents the modelling pathway, presents the stochastic inverse results with diagnostic figures, and is intended as a self-contained Zenodo deposit.