Benjamin Drummond
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View article: Long-term airborne measurements of pollutants over the United Kingdom to support air quality model development and evaluation
Long-term airborne measurements of pollutants over the United Kingdom to support air quality model development and evaluation Open
The ability of regional air quality models to skilfully represent pollutant distributions throughout the atmospheric column is important to enabling their skilful prediction at the surface. This provides a requirement for model evaluation …
View article: Temperature–chemistry coupling in the evolution of gas giant atmospheres driven by stellar flares
Temperature–chemistry coupling in the evolution of gas giant atmospheres driven by stellar flares Open
The effect of enhanced UV irradiation associated with stellar flares on the atmospheric composition and temperature of gas giant exoplanets was investigated. This was done using a 1D radiative-convective-chemical model with self-consistent…
View article: Temperature-chemistry coupling in the evolution of gas giant atmospheres driven by stellar flares
Temperature-chemistry coupling in the evolution of gas giant atmospheres driven by stellar flares Open
The effect of enhanced UV irradiation associated with stellar flares on the atmospheric composition and temperature of gas giant exoplanets was investigated. This was done using a 1D radiative-convective-chemical model with self-consistent…
View article: Comment on amt-2023-15
Comment on amt-2023-15 Open
Abstract. The ability of regional air quality models to skilfully represent pollutant distributions throughout the atmospheric column is important to enabling their skilful prediction at the surface. This provides a requirement for model e…
View article: Long-term airborne measurements of pollutants over the UK, including during the COVID-19 pandemic, to support air quality model development and evaluation
Long-term airborne measurements of pollutants over the UK, including during the COVID-19 pandemic, to support air quality model development and evaluation Open
The ability of regional air quality models to skilfully represent pollutant distributions throughout the atmospheric column is important to enabling their skilful prediction at the surface. This provides a requirement for model evaluation …
View article: A modern-day Mars climate in the Met Office Unified Model: dry simulations
A modern-day Mars climate in the Met Office Unified Model: dry simulations Open
We present results from the Met Office Unified Model (UM), a world-leading climate and weather model, adapted to simulate a dry Martian climate. We detail the adaptation of the basic parameterisations and analyse results from two simulatio…
View article: Observability of signatures of transport-induced chemistry in clear atmospheres of hot gas giant exoplanets
Observability of signatures of transport-induced chemistry in clear atmospheres of hot gas giant exoplanets Open
Transport-induced quenching, i.e. the homogenization of chemical abundances by atmospheric advection, is thought to occur in the atmospheres of hot gas giant exoplanets. While some numerical modelling of this process exists, the three-dime…
View article: 3D modelling of the impact of stellar activity on tidally locked terrestrial exoplanets: atmospheric composition and habitability
3D modelling of the impact of stellar activity on tidally locked terrestrial exoplanets: atmospheric composition and habitability Open
Stellar flares present challenges to the potential habitability of terrestrial planets orbiting M dwarf stars through inducing changes in the atmospheric composition and irradiating the planet’s surface in large amounts of ultraviolet ligh…
View article: 3D modelling of the impact of stellar activity on tidally locked terrestrial exoplanets: atmospheric composition and habitability
3D modelling of the impact of stellar activity on tidally locked terrestrial exoplanets: atmospheric composition and habitability Open
Stellar flares present challenges to the potential habitability of terrestrial planets orbiting M dwarf stars through inducing changes in the atmospheric composition and irradiating the planet's surface in large amounts of ultraviolet ligh…
View article: Comment on egusphere-2022-718
Comment on egusphere-2022-718 Open
We present results from the Met Office Unified Model (UM), a world-leading climate and weather model, adapted to simulate a dry Martian climate. We detail the adaptation of the basic parameterisations and analyse results from two simulatio…
View article: Comment on egusphere-2022-718
Comment on egusphere-2022-718 Open
Abstract. We present results from the Met Office Unified Model (UM), a world-leading climate and weather model, adapted to simulate a dry Martian climate. We detail the adaptation of the basic parameterisations and analyse results from two…
View article: A modern-day Mars climate in the Met Office Unified Model: dry simulations
A modern-day Mars climate in the Met Office Unified Model: dry simulations Open
We present results from the Met Office Unified Model (UM), a world-leading climate and weather model, adapted to simulate a dry Martian climate. We detail the adaptation of the basic parameterisations and analyse results from two simulatio…
View article: McCulloch et al 2022 UM post-processed Mars dataset
McCulloch et al 2022 UM post-processed Mars dataset Open
Supplementary dataset and Jupyter notebook for preproduction of UM data within figures presented in McCulloch et al., 2022. Data is a post-processed extract of the raw dataset for each variable. Data from the raw dataset has been extracted…
View article: McCulloch et al 2022 UM post-processed Mars dataset
McCulloch et al 2022 UM post-processed Mars dataset Open
Supplementary dataset and Jupyter notebook for preproduction of UM data within figures presented in McCulloch et al., 2022. Data is a post-processed extract of the raw dataset for each variable. Data from the raw dataset has been extracted…
View article: 3D simulations of warm and hot Jupiter atmospheres: the role of 3D mixing in shaping CH4-to-CO conversion pathways
3D simulations of warm and hot Jupiter atmospheres: the role of 3D mixing in shaping CH4-to-CO conversion pathways Open
We present results from a set of cloud-free simulations of exoplanet atmospheres using a coupled three-dimensional (3D) hydrodynamics-radiation-chemistry model. We report in particular our investigation of the thermodynamic and chemical st…
View article: The impact of mixing treatments on cloud modelling in 3D simulations of hot Jupiters
The impact of mixing treatments on cloud modelling in 3D simulations of hot Jupiters Open
We present results of 3D hydrodynamical simulations of HD209458b including a coupled, radiatively active cloud model (eddysed). We investigate the role of the mixing by replacing the default convective treatment used in previous works with…
View article: Pseudo-2D modelling of heat redistribution through H2 thermal dissociation/recombination: consequences for ultra-hot Jupiters
Pseudo-2D modelling of heat redistribution through H2 thermal dissociation/recombination: consequences for ultra-hot Jupiters Open
Thermal dissociation and recombination of molecular hydrogen, H2, in the atmospheres of ultra-hot Jupiters (UHJs) has been shown to play an important role in global heat redistribution. This, in turn, significantly impacts their planetary …
View article: Ground-based transmission spectroscopy with FORS2: A featureless optical transmission spectrum and detection of H2O for the ultra-hot Jupiter WASP-103b
Ground-based transmission spectroscopy with FORS2: A featureless optical transmission spectrum and detection of H2O for the ultra-hot Jupiter WASP-103b Open
We report ground-based transmission spectroscopy of the highly irradiated and ultra-short period hot-Jupiter WASP-103b covering the wavelength range ≈400–600 nm using the FORS2 instrument on the Very Large Telescope. The light curves show …
View article: A library of self-consistent simulated exoplanet atmospheres
A library of self-consistent simulated exoplanet atmospheres Open
We present a publicly available library of model atmospheres with radiative-convective equilibrium pressure–temperature (P-T) profiles fully consistent with equilibrium chemical abundances, and the corresponding emission and transmission s…
View article: Idealised simulations of the deep atmosphere of hot Jupiters
Idealised simulations of the deep atmosphere of hot Jupiters Open
Context. The anomalously large radii of hot Jupiters has long been a mystery. However, by combining both theoretical arguments and 2D models, a recent study has suggested that the vertical advection of potential temperature leads to a hott…
View article: Idealised simulations of the deep atmosphere of hot jupiters: Deep, hot, adiabats as a robust solution to the radius inflation problem
Idealised simulations of the deep atmosphere of hot jupiters: Deep, hot, adiabats as a robust solution to the radius inflation problem Open
Context: The anomalously large radii of hot Jupiters has long been a mystery. However, by combining both theoretical arguments and 2D models, a recent study has suggested that the vertical advection of potential temperature leads to an adi…
View article: Overcast on Osiris: 3D radiative-hydrodynamical simulations of a cloudy hot Jupiter using the parametrized, phase-equilibrium cloud formation code EddySed
Overcast on Osiris: 3D radiative-hydrodynamical simulations of a cloudy hot Jupiter using the parametrized, phase-equilibrium cloud formation code EddySed Open
We present results from 3D radiative-hydrodynamical simulations of HD 209458b with a fully coupled treatment of clouds using the EddySed code, critically, including cloud radiative feedback via absorption and scattering. We demonstrate tha…
View article: An emission spectrum for WASP-121b measured across the 0.8–1.1 μm wavelength range using the Hubble Space Telescope
An emission spectrum for WASP-121b measured across the 0.8–1.1 μm wavelength range using the Hubble Space Telescope Open
WASP-121b is a transiting gas giant exoplanet orbiting close to its Roche limit, with an inflated radius nearly double that of Jupiter and a dayside temperature comparable to a late M dwarf photosphere. Secondary eclipse observations cover…
View article: Thermo-compositional Diabatic Convection in the Atmospheres of Brown Dwarfs and in Earth’s Atmosphere and Oceans
Thermo-compositional Diabatic Convection in the Atmospheres of Brown Dwarfs and in Earth’s Atmosphere and Oceans Open
By generalizing the theory of convection to any type of thermal and compositional source terms (diabatic processes), we show that thermohaline convection in Earth’s oceans, fingering convection in stellar atmospheres, and moist convection …
View article: The carbon-to-oxygen ratio: implications for the spectra of hydrogen-dominated exoplanet atmospheres
The carbon-to-oxygen ratio: implications for the spectra of hydrogen-dominated exoplanet atmospheres Open
We present results from one-dimensional atmospheric simulations investigating the effect of varying the carbon-to-oxygen (C/O) ratio on the thermal structure, chemical composition and transmission and emission spectra, for irradiated hydro…
View article: Erratum: A library of<tt>ATMO</tt>forward model transmission spectra for hot Jupiter exoplanets
Erratum: A library ofATMOforward model transmission spectra for hot Jupiter exoplanets Open
This is the final version. Available from OUP via the DOI in this record
View article: The Limits of the Primitive Equations of Dynamics for Warm, Slowly Rotating Small Neptunes and Super Earths
The Limits of the Primitive Equations of Dynamics for Warm, Slowly Rotating Small Neptunes and Super Earths Open
We present significant differences in the simulated atmospheric flow for warm, tidally locked small Neptunes and super Earths (based on a nominal GJ 1214b) when solving the simplified, and commonly used, primitive dynamical equations or th…
View article: The 3D Thermal, Dynamical, and Chemical Structure of the Atmosphere of HD 189733b: Implications of Wind-driven Chemistry for the Emission Phase Curve
The 3D Thermal, Dynamical, and Chemical Structure of the Atmosphere of HD 189733b: Implications of Wind-driven Chemistry for the Emission Phase Curve Open
In this paper we present 3D atmospheric simulations of the hot Jupiter HD 189733b under two different scenarios: local chemical equilibrium and including advection of the chemistry by the resolved wind. Our model consistently couples the t…
View article: An Optical Transmission Spectrum for the Ultra-hot Jupiter WASP-121b Measured with the Hubble Space Telescope
An Optical Transmission Spectrum for the Ultra-hot Jupiter WASP-121b Measured with the Hubble Space Telescope Open
We present an atmospheric transmission spectrum for the ultra-hot Jupiter WASP-121b, measured using the Space Telescope Imaging Spectrograph on board the Hubble Space Telescope . Across the 0.47–1 wavelength range, the data imply an atmosp…
View article: Generic Grid of Transmission Spectra
Generic Grid of Transmission Spectra Open
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 mode…