Cloud Intrinsic Color Calibration and Earth Dual-Battery Hypothesis: Spectral Evidence of Extraterrestrial Material Entering Earth's Circulation Through Cloud Nuclei

Cloud color is among the most familiar yet never systematically calibrated physical quantities in meteorology. Since Luke Howard classification in 1803, the WMO International Cloud Atlas has catalogued over 100 cloud species, yet color has remained a qualitative descriptor rather than a continuous variable in CIE colorimetric space. This paper proposes a field-theoretic calibration framework and the Earth Dual-Battery Hypothesis.