Greenhouse Trap

Thermal Forcing. A run-away 96.5% CO₂ atmosphere trapping infrared energy to sustain a constant 737 K surface.

• ☀️ Albedo Reflectivity: 70% of sunlight lost to sulfuric clouds.
• 🕸️ IR Absorption: CO₂ prevents heat from escaping into the vacuum.
• 🔄 Feedback Loop: Total evaporation of primordial water reserves.

Thermal Lock

Infrared Trapping. CO₂ molecules absorb re-radiated surface heat, creating a Molecular Vibration loop that heats the planet.

• 🫨 Molecular Bending: CO₂ vibrates upon absorbing 15-micron IR radiation.
• 🕸️ Optical Opacity: 99.9% of infrared energy is reflected back to the surface.
• 🌡️ Equilibrium: Surface temp stabilizes at a crushing 737 K.

Surface Peak

Thermal Stasis. A global furnace of 465°C that remains constant day and night, liquefying standard terrestrial metals.

• 🌋 Metal Liquefaction: Lead and Zinc exist as molten states on the surface.
• 🛡️ Alloy Softening: Aluminum structures lose 90% of yield strength.
• ⏳ Survival Limit: Electronics fail as internal heat-sinks reach 465°C.

Thermal Gradient

The Vertical Shift. As the atmosphere thins, the 737 K surface heat weakens into a temperate 298 K "Sweet Spot" at 50km.

• 🏔️ Lapse Rate: Constant cooling of ~8°C per kilometer of ascent.
• ☁️ 50km Zone: Earth-like 20°C to 30°C comfort range.
• 🛡️ Engineering Delta: Massive cooling requirements for surface descent.

The Heat War

Insulation vs. Proximity. Venus is hotter than Mercury because its 92-Bar CO₂ atmosphere traps heat that Mercury simply radiates away.

• 🕸️ Venus (465°C): Runaway greenhouse effect traps 99% of IR energy.
• 🌑 Mercury (430°C): Closer to the sun, but lacks an atmospheric "blanket."
• ⚖️ Density Factor: Venusian air is 50x denser, holding heat indefinitely.

MISSION DATA LOG

THERMAL PHYSICS DIVISION