Climate sensitivity to ozone and its relevance on the habitability of Earth-like planets
arXiv:1901.02897 · doi:10.1016/j.icarus.2018.11.019
Abstract
Atmospheric ozone plays an important role on the temperature structure of the atmosphere. However, it has not been included in previous studies on the effect of an increasing solar radiation on the Earth's climate. Here we study the climate sensitivity to the presence/absence of ozone with an increasing solar forcing for the first time with a global climate model. We show that the warming effect of ozone increases both the humidity of the lower atmosphere and the surface temperature. Under the same solar irradiance, the mean surface temperature is 7 K higher than in an analog planet without ozone. Therefore, the moist greenhouse threshold, the state at which water vapor becomes abundant in the stratosphere, is reached at a lower solar irradiance (1572 Wm^-2 with respect to 1647 Wm^-2 in the case without ozone). Our results imply that ozone reduces the maximum solar irradiance at which Earth-like planets would remain habitable.
arXiv comment14 pages, 7 figures, accepted for publication in Icarus
References in corpus (17)
- Habitable Zones Around Main-Sequence Stars: New Estimates
- Solar Models: current epoch and time dependences, neutrinos, and helioseismological properties
- Increased insolation threshold for runaway greenhouse processes on Earth like planets
- Strong Dependence of the Inner Edge of the Habitable Zone on Planetary Rotation Rate
- Abiotic Ozone and Oxygen in Atmospheres Similar to Prebiotic Earth
- Water loss from terrestrial planets with CO2-rich atmospheres
- The Habitable Zones of Pre-Main-Sequence Stars
- Energetics of PCMDI/CMIP3 Climate Models: Energy Budget and Meridional Enthalpy Transport
- A new framework for climate sensitivity and prediction: a modelling perspective
- Transition to a Moist Greenhouse with CO and solar forcing
- Climate of Earth-like planets with high obliquity and eccentric orbits: implications for habitability conditions
- Constraints on Climate and Habitability for Earth-like Exoplanets Determined from a General Circulation Model
- Bistability of the climate around the habitable zone: a thermodynamic investigation
- Habitable Zones of Post-Main Sequence Stars
- Stratospheric Temperatures and Water Loss from Moist Greenhouse Atmospheres of Earth-like Planets
- Habitability and Multistability in Earth-like Planets
- Thermodynamics of Climate Change: Generalized Sensitivities
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