Joint VSWIR-TIR retrievals of earth's surface and atmosphere

Remote spectroscopy of terrestrial ecosystems generally falls into one two categories: UV, Visible and ShortWave InfraRed (VSWIR) methods measuring reflected solar illumination, Thermal (TIR) radiation emitted from the Earth's surface. Both interpret measured radiance with inversion algorithms that estimate surface reflectance, emissivity, temperatures, atmospheric state. However, regimes have traditionally used independent methods. Here we present first simultaneous upwelling spectrum UV through VSWIR Infrared. Maximum A Posteriori estimation determines atmosphere state is most consistent across entire range. We find complementary information in intervals improves estimates properties, temperature. Posterior uncertainty 40% lower temperature 60% air Spurious correlations between are also reduced, 90% correlated total column water vapor both Temperature-emissivity separation improves, a 33% reduction posterior parameters. demonstrate method on coincident data Classic Airborne Infrared Imaging Spectrometer (AVIRIS-C) operating range, Hyperspectral Emission (HyTES) TIR during flights NASA's high-altitude ER-2 aircraft. Measurements spanning 0.4 to 12 microns can improve significantly advancing studies ecosystems, geology, agriculture, urban management.