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The Climates of Earth’s Next Supercontinent: Effects of Tectonics, Rotation Rate, and Insolation

open access: yesGeochemistry, Geophysics, Geosystems, 2021
We explore two possible Earth climate scenarios, 200 and 250 million years into the future, using projections of the evolution of plate tectonics, solar luminosity, and rotation rate.
M. J. Way   +3 more
doaj   +1 more source

Arctic climate and atmospheric planetary waves [PDF]

open access: yesGeophysical Research Letters, 2001
Analysis of a fifty‐year record (1946–1995) of monthly‐averaged sea level pressure data provides a link between the phases of planetary‐scale sea level pressure waves and Arctic Ocean and ice variability. Results of this analysis show: (1) a breakdown of the dominant wave 1 pattern in the late 1960's, (2) shifts in the mean phase of waves 1 and 2 since
Donald J. Cavalieri, Sirpa Häkkinen
openaire   +1 more source

Impacts of Atmospheric Carbon Species and Stellar Type on Climates of Terrestrial Planets

open access: yesThe Planetary Science Journal
The climates of terrestrial planets are largely determined by the composition of their atmospheres and the spectral types of their host stars. Previous studies suggest that a wide range of carbon species abundances (CO _2 , CO, and CH _4 ) can result ...
Jared Landry   +5 more
doaj   +1 more source

A Radiative-convective Model for Terrestrial Planets with Self-consistent Patchy Clouds

open access: yesThe Planetary Science Journal, 2023
Clouds are ubiquitous: they arise for every solar system planet that possesses an atmosphere and have also been suggested as a leading mechanism for obscuring spectral features in exoplanet observations.
James D. Windsor   +5 more
doaj   +1 more source

The New Titan Planetary Climate Model. I. Seasonal Variations of the Thermal Structure and Circulation in the Stratosphere

open access: yesThe Planetary Science Journal
Observations of Titan through Cassini’s mission allowed Saturn’s moon’s stratospheric thermal structure and composition to be mapped over half a Titan year.
Bruno de Batz de Trenquelléon   +6 more
doaj   +1 more source

Impact of Annually Variable Dust Activity on the Recession of the Martian South Polar Seasonal Cap

open access: yesThe Astronomical Journal
Suspended dust is a vital component of Martian climatic system and its temporal-spatial variation can influence the recession of the South Polar Seasonal Cap (SPSC).
Zhibin Li   +9 more
doaj   +1 more source

Snowball Bistability Vanishes at Moderate Orbital Eccentricity

open access: yesThe Planetary Science Journal
Snowball episodes are associated with increases in atmospheric oxygen and the complexity of life on Earth, and they may be essential for the development of complex life on exoplanets. Sustained, stable Snowball episodes require a Snowball bifurcation and
Xuan Ji, Dorian S. Abbot
doaj   +1 more source

The Influence of True Polar Wander on Habitability and Planetary Climates: A New Method

open access: yesThe Astrophysical Journal
The habitability of a planet is tied to its atmosphere. Over long timescales, the planetary climate is controlled by the radiation budget of the star around which the planet orbits.
M. Kiani Shahvandi
doaj   +1 more source

Chemistry, Climate, and Transmission Spectra of TRAPPIST-1 e Explored with a Multimodel Sparse Sampled Ensemble

open access: yesThe Planetary Science Journal
TRAPPIST-1 e is one of a few habitable zone exoplanets that is amenable to characterization in the near term. In this study our motivations are both scientific and technical.
Eric T. Wolf   +8 more
doaj   +1 more source

Coupling True Polar Wander to Planetary Climates Using Nonlinear 2D Energy Balance Climate Models

open access: yesThe Astrophysical Journal
Rotational dynamics strongly modulate the long-term climate evolution of a planet. Existing climate–rotation models typically include precession and nutation—torques on the spin axis produced by the star–planet–satellite gravitational interaction—but ...
M. Kiani Shahvandi
doaj   +1 more source

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