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We numerically investigate the dynamics of rotation of several close-in terrestrial exoplanet candidates. In our model, the rotation of the planet is disturbed by the torque of the central star due to the asymmetric equilibrium figure of…

Earth and Planetary Astrophysics · Physics 2015-06-05 Nelson Callegari , Adrian Rodríguez

The coarse spatial resolution of gridded climate models, such as general circulation models, limits their direct use in projecting socially relevant variables like extreme precipitation. Most downscaling methods estimate the conditional…

Atmospheric and Oceanic Physics · Physics 2026-01-06 Louise Largeau , Tom Beucler , David Leutwyler , Gregoire Mariethoz , Valerie Chavez-Demoulin , Erwan Koch

We explain how GCM boundary condition choices such as ocean-lake coverage-depth, rotation rate, atmospheric constituents and other factors influence surface conditions in ROCKE-3D paleo-Venus simulations. Studies such as these should also…

Earth and Planetary Astrophysics · Physics 2017-11-30 M. J. Way , June Wang

We use an idealized three-dimensional general circulation model to study condensible-rich atmospheres with an ineffective cold trap on slowly rotating tidally locked terrestrial planets. In particular, we show the climate dynamics in a thin…

Earth and Planetary Astrophysics · Physics 2020-10-05 Feng Ding , Raymond T. Pierrehumbert

When granular systems are modeled by frictionless hard spheres, particle-particle collisions are considered as instantaneous events. This implies that while the velocities change according to the collision rule, the positions of the…

Statistical Mechanics · Physics 2011-08-22 Patric Mueller , Thorsten Poeschel

Accurate Subseasonal-to-Seasonal (S2S) climate forecasting is pivotal for decision-making including agriculture planning and disaster preparedness but is known to be challenging due to its chaotic nature. Although recent data-driven models…

Machine Learning · Computer Science 2025-02-28 Yang Liu , Zinan Zheng , Jiashun Cheng , Fugee Tsung , Deli Zhao , Yu Rong , Jia Li

We use the Massachusetts Institute of Technology general circulation model (GCM) dynamical core, in conjunction with a Newtonian relaxation scheme that relaxes to a gray, analytical solution of the radiative transfer equation, to simulate a…

Earth and Planetary Astrophysics · Physics 2015-06-04 Angela M. Zalucha , Timothy I. Michaels , Nikku Madhusudhan

Atmospheric heat redistribution shapes the remote appearance of rocky exoplanets but there is currently no easy way to predict a planet's heat redistribution from its physical properties. This paper proposes an analytical scaling theory for…

Earth and Planetary Astrophysics · Physics 2022-01-21 Daniel D. B. Koll

The primary scientific objective of this Habitable Worlds Observatory (HWO) Science Case Development Document (SCDD) is to measure planetary rotation rates of transiting exoplanets to determine the structure, composition, circulation, and…

Simulated exoplanet transmission spectra are critical for planning and interpretation of observations and to explore the sensitivity of spectral features to atmospheric thermochemical processes. We present a publicly available generic model…

Earth and Planetary Astrophysics · Physics 2018-11-14 Jayesh M. Goyal , Hannah R. Wakeford , Nathan J. Mayne , Nikole K. Lewis , Benjamin Drummond , David K. Sing

The ongoing characterization of hot Jupiters has motivated a variety of circulation models of their atmospheres. Such models must be integrated starting from an assumed initial state, which is typically taken to be a wind-free, rest state.…

Earth and Planetary Astrophysics · Physics 2013-06-12 Beibei Liu , Adam P. Showman

The thermodynamic uncertainty relation is a universal trade-off relation connecting the precision of a current with the average dissipation at large times. For continuous time Markov chains (also called Markov jump processes) this relation…

Statistical Mechanics · Physics 2019-09-04 A. C. Barato , R. Chetrite , A. Faggionato , D. Gabrielli

Ocean General Circulation Models require extensive computational resources to reach equilibrium states, while deep learning emulators, despite offering fast predictions, lack the physical interpretability and long-term stability necessary…

Machine Learning · Computer Science 2025-02-05 Etienne Meunier , David Kamm , Guillaume Gachon , Redouane Lguensat , Julie Deshayes

The predominant force balance in rapidly rotating planetary cores is between Coriolis, pressure, buoyancy and Lorentz forces. This magnetostrophic balance leads to a Taylor state where the spatially averaged azimuthal Lorentz force is…

Earth and Planetary Astrophysics · Physics 2015-06-16 Robert J. Teed , Chris A. Jones , Steven M. Tobias

We demonstrate that LFRic-Atmosphere, a model built using the Met Office's GungHo dynamical core, is able to reproduce idealised large-scale atmospheric circulation patterns specified by several widely-used benchmark recipes. This is…

The main objective of this article is to study the effect of the moisture on the planetary scale atmospheric circulation over the tropics. The modeling we adopt is the Boussinesq equations coupled with a diffusive equation of humidity and…

Atmospheric and Oceanic Physics · Physics 2011-10-19 Chun-Hsiung Hsia , Chang-Shou Lin , Tian Ma , Shouhong Wang

Hot Jupiters are Jupiter-sized exoplanets with close-in orbits, characterized by extreme day-night temperature contrasts due to synchronous rotation. These planets offer unique observational opportunities through transit photometry,…

Earth and Planetary Astrophysics · Physics 2025-10-08 W. Dietrich , J. Wicht

The impact of uncertainties in surface layer physics on the atmospheric general circulation is comparatively unexplored. Here the sensitivity of the zonal-mean circulation to reduced air-sea momentum roughness ($Z_{0m}$) at low flow speed…

Atmospheric and Oceanic Physics · Physics 2016-12-21 I. Polichtchouk , T. G. Shepherd

In trajectory planning and control design for unmanned air vehicles, highly simplified models are typically used to represent the vehicle dynamics and the operating environment. The goal of this work is to perform real-time, but realistic…

Fluid Dynamics · Physics 2019-02-06 Behdad Davoudi , Ehsan Taheri , Karthik Duraisamy , Balaji Jayaraman , Ilya Kolmanovsky

Transiting exoplanets provide access to data to study the mass-radius relation and internal structure of extrasolar planets. Long-period transiting planets allow insight into planetary environments similar to the Solar System where, in…

Earth and Planetary Astrophysics · Physics 2015-05-20 Kaspar von Braun , Stephen R. Kane , Suvrath Mahadevan , Greg Laughlin , Andrew Howard , David R. Ciardi