Increased insolation threshold for runaway greenhouse processes on Earth-like planets
- J. Leconte, F. Forget, B. Charnay, R. Wordsworth, A. Pottier
- Environmental Science, GeologyNature
- 11 December 2013
A three-dimensional global climate model is used to show that the insolation threshold for the runaway greenhouse state to occur is about 375 W m−2, which is significantly higher than previously thought and has strong implications for the possibility of liquid water existing on Venus early in its history, and extends the size of the habitable zone around other stars.
3D climate modeling of close-in land planets: Circulation patterns, climate moist bistability and habitability
- J. Leconte, F. Forget, B. Charnay, R. Wordsworth, F. Selsis, E. Millour
- Physics, Geology
- 28 March 2013
The inner edge of the classical habitable zone is often defined by the critical flux needed to trigger the runaway greenhouse instability. This 1D notion of a critical flux, however, may not be so…
3D modelling of the early Martian Climate under a denser CO2 atmosphere: Temperatures and CO2 ice clouds.
- F. Forget, R. Wordsworth, R. Haberle
- Environmental Science, Physics
- 15 October 2012
The Climate of Early Mars
- R. Wordsworth
- Geology, Environmental Science
- 9 June 2016
The nature of the early martian climate is one of the major unanswered questions of planetary science. Key challenges remain, but a new wave of orbital and in situ observations and improvements in…
Exploring the faint young Sun problem and the possible climates of the Archean Earth with a 3‐D GCM
- B. Charnay, F. Forget, A. Spiga
- Environmental Science
- 27 September 2013
Different solutions have been proposed to solve the “faint young Sun problem,” defined by the fact that the Earth was not fully frozen during the Archean despite the fainter Sun. Most previous…
Global modelling of the early Martian climate under a denser CO2 atmosphere: Water cycle and ice evolution
- R. Wordsworth, F. Forget, E. Millour, J. Head, J. Madeleine, B. Charnay
- Environmental Science
- 17 July 2012
Transient reducing greenhouse warming on early Mars
- R. Wordsworth, Y. Kalugina, H. Wang
- Physics, Geology
- 30 October 2016
The evidence for abundant liquid water on early Mars despite the faint young Sun is a long‐standing problem in planetary research. Here we present new ab initio spectroscopic and line‐by‐line climate…
ABIOTIC OXYGEN-DOMINATED ATMOSPHERES ON TERRESTRIAL HABITABLE ZONE PLANETS
- R. Wordsworth, R. Pierrehumbert
- Physics, Geology
- 11 March 2014
Detection of life on other planets requires identification of biosignatures, i.e., observable planetary properties that robustly indicate the presence of a biosphere. One of the most widely accepted…
Growth model interpretation of planet size distribution
- L. Zeng, S. Jacobsen, R. Wordsworth
- Geology, PhysicsProceedings of the National Academy of Sciences
- 1 December 2018
Significance The discovery of numerous exoplanet systems containing diverse populations of planets orbiting very close to their host stars challenges the planet formation theories based on the solar…
A laboratory model of Saturn's North Polar hexagon
- A. Aguiar, P. Read, R. Wordsworth, T. Salter, Y. Yamazaki
- Physics, Environmental Science
- 1 April 2010
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