Publications

Automated crater detection on Mars using deep learning

Impact crater cataloging is an important tool in the study of the geological history of planetary bodies in the Solar System, including …

The sensitivity of solsticial pauses to atmospheric ice and dust in the MarsWRF General Circulation Model

Mars exhibits less atmospheric variability at the solstices than it does during periods nearer the equinoxes. Much of this variability …

Simulating Titan’s methane cycle with the TitanWRF General Circulation Model

Observations provide increasing evidence of a methane hydrological cycle on Titan. Earth-based and Cassini-based monitoring has …

Martian atmospheric collapse: Idealized GCM studies

Global energy balance models of the martian atmosphere predict that, for a range of total CO2 inventories, the CO2 atmosphere may …

Analysis of the radiative budget of the Venusian atmosphere based on infrared Net Exchange Rate formalism.

A detailed one-dimensional analysis of the energy balance in Venus atmosphere is proposed in thiswork, based on the Net Exchange Rate …

Effects of obliquity and water vapor/trace gas greenhouses in the early martian climate.

We explore possible mechanisms for the generation of warm, wet climates on early Mars as a result of greenhouse warming by both water …

Development of a fast, accurate radiative transfer model for the Martian atmosphere, past and present.

We present details of an approach to creating a k-distribution radiative transfer model (KDM) for use in the Martian atmosphere. Such …

The impact of resolution on the dynamics of the martian global atmosphere: Varying resolution studies with the MarsWRF GCM.

We investigate the sensitivity of the circulation and thermal structure of the martian atmosphere to numerical model resolution in a …

Angular momentum conservation in a simplified Venus General Circulation Model.

We investigate the sensitivity of the circulation and thermal structure of the martian atmosphere to numerical model resolution in a …

The Ashima/MIT Mars GCM and argon in the martian atmosphere.

We investigate the ability of modern general circulation models (GCMs) to simulate transport in the martian atmosphere using …

Demonstration of ensemble data assimilation for Mars using DART, MarsWRF, and radiance observations from MGS TES. Journal of Geophysical Research.

We describe a global atmospheric data assimilation scheme that has been adapted for use with a Martian General Circulation Model (GCM), …

Stratospheric super-rotation in the TitanWRF model

TitanWRF general circulation model simulations performed without sub-grid-scale horizontal diffusion of momentum produce roughly the …

A Discrete Ordinate, Multiple Scattering, Radiative Transfer Model of the Venus Atmosphere from 0.1 to 260 micron

We describe a new radiative transfer model of the Venus atmosphere. We have implemented a moderate resolution radiative transfer model …

A General Circulation Model Ensemble Study of the Atmospheric Superrotation on Venus

The response of three numerical model dynamical cores to Venus‐like forcing and friction is described in this paper. Each dynamical …

Convective instability in the martian middle atmosphere

Dry convective instabilities in Mars’s middle atmosphere are detected and mapped using temperature retrievals from Mars Climate Sounder …

A bulk cloud parameterization in a Venus General Circulation Model

A condensing cloud parameterization is included in a super-rotating Venus General Circulation Model. A parameterization including …

A bulk cloud parameterization in a Venus General Circulation Model

A condensing cloud parameterization is included in a super-rotating Venus General Circulation Model. A parameterization including …

Evidence for carbonyl sulfide (OCS) conversion to CO in the lower atmosphere of Venus

The chemical regimes in the atmosphere of Venus vary from photochemistry in the middle atmosphere to thermal equilibrium chemistry in …

Tropospheric carbon monoxide concentrations and variability on Venus from Venus Express/VIRTIS-M observations

We present nightside observations of tropospheric carbon monoxide in the southern hemisphere near the 35 km height level, the first …

Superrotation in a Venus General Circulation Model

A superrotating atmosphere with equatorial winds of ∼35 m s-1 is simulated using a simplified Venus general circulation model (GCM). …

Modelling of the atmosphere of Venus

A General Circulation Model of the atmosphere of the planet Venus is developed using a climate model developed by the UK Meteorological …

A numerical model of the atmosphere of Venus

A new general circulation model (GCM) of Venus is being developed at Oxford. Venus presents unique numerical and physical challenges …