Early Venus experienced large seasonal and latitudinal insolation redistribution but only modest orbit-averaged flux changes, making atmospheric opacity the dominant control on surface temperature rather than orbital forcing.
Kasting, Icarus74(3), 472 (1988)
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In 1D N2-CO2-H2O model atmospheres, increasing background N2 pressure warms the climate under low CO2 via H2O dilution and under high CO2 via H2O loading, while high N2 induces cooling via Rayleigh scattering that can be overwhelmed by enhanced H2O absorption.
LIFE can constrain atmospheric H2O abundances from roughly 10^{-3} to 1 bar surface pressure on Earth-like exoplanets for certain vertical profiles, providing a potential proxy for surface oceans, but cannot detect water below 10^{-6} bar or precisely characterize the highest abundances.
The paper reviews physical processes, modeling techniques, retrieval methods, and observational strategies for characterizing exoplanet atmospheres, emphasizing Swiss research progress.
citing papers explorer
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Seasonal Insolation Variability on Early Venus: Implications for Energy Budget
Early Venus experienced large seasonal and latitudinal insolation redistribution but only modest orbit-averaged flux changes, making atmospheric opacity the dominant control on surface temperature rather than orbital forcing.
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Revisiting the greenhouse effect of non-greenhouse gases in the atmospheres of Earth-like planets
In 1D N2-CO2-H2O model atmospheres, increasing background N2 pressure warms the climate under low CO2 via H2O dilution and under high CO2 via H2O loading, while high N2 induces cooling via Rayleigh scattering that can be overwhelmed by enhanced H2O absorption.
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The Goldilocks problem for detecting water in terrestrial planets: Constraining water abundances in the mid-IR with LIFE
LIFE can constrain atmospheric H2O abundances from roughly 10^{-3} to 1 bar surface pressure on Earth-like exoplanets for certain vertical profiles, providing a potential proxy for surface oceans, but cannot detect water below 10^{-6} bar or precisely characterize the highest abundances.
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NCCR PlanetS: Observational and computational characterization of exoplanet atmospheres
The paper reviews physical processes, modeling techniques, retrieval methods, and observational strategies for characterizing exoplanet atmospheres, emphasizing Swiss research progress.