Picture  of Matthew Balme

Prf Matthew Balme

Professor Of Planetary Geoscience

School of Physical Sciences

matt.balme@open.ac.uk

Biography

Professional biography

As Professor of Planetary Geoscience in the School of Physical Sciences at the Open Unversity my research interests are mainly in Mars geology and geomorphology and the geology of Mercury. I hope one day to return to my PhD topic, the geology of Venus, but for now Mars and Mercury form the focus of my research.

My early career was spent trying to understand dust devils on Earth and Mars as well as wind-related landscapes and transport processes on Mars. I've also been involved in research using orbital remote sensing to study the martian cryosphere. From 2013 I started working on landing site selection for the ESA ExoMars Rover mission and joined the instrument team for PanCam, the Rover's main camera. I am now deputy PI of PanCam and much of my research in the past 10 years has been centred on the ExoMars Rosalind Franklin Rover mission in one way or another. I am currently seconded to ESA as an 'International Team Member' for 50% of my time to work on the Rosalind Franklin Mission.

At OU I lead the Planetary Environments research group - a talented and dedicated group of PhD students and researchers - and have done for more than 15 years. During that time I have supervised (or co-supervised) more than 20 students to completion and currently supervise a handful more. I have been lucky enough to have supervised or managed about ten postdocs or research fellows over the years, all of whom were appointed on competetively awarded grant income.

Supervising students and postdocs is an important and rewarding part of my role, and my aim is to make our research group as welcoming and nurturing as it possibly can be.

Employment history

2021-ongoing Professor of Planetary Geoscience, School of Physical Sciences, Open University, UK.

2013 - 2021 Senior Lecturer, Open University, UK

2009 - 2013:  UK Space Agency Aurora Fellow, Open University, UK.

2006 - 2015: Research Scientist (Senior Research Scientist from 2011), part-time, Planetary Science Institute, Tucson, USA.

2005 - 2009: Postdoctoral Research Scientist, paret-time, Dept. of Earth Sciences, Open University, UK.

2005: Postdoctoral Researcher, Departement des Sciences de la Terre, Univ. Paris-Sud, Paris, France.

2004 - 2005: Postdoctoral Researcher, Planetary Science Institute, Tucson.

2003 - 2004: Post Doctoral Research Assistant, part-time, University of Oxford, UK.

2003 - 2004: Post Doctoral Research Associate, Mullard Space Science Laboratory, UK.

2001 - 2003: Post Doctoral Research Associate, Arizona State University, Phoenix, USA.

The multiple, part-time positions I held between 2005 and 2012 reflect two parallel mid-career paths, one in the USA at the Planetary Science Institute, the other in the UK at Open University.

Research interests

My research interests in planetary geomorphology and geology include:

Martian aeolian processes and landscapes, including sediment transport, large ripple-like bedforms and dust devils. A recent paper on this topic can be found here

Martian fluvial processes and landforms, including lakes and valley networks, and especially inverted fluvial systems. For examples see here or here

Glacial and periglaical Mars. A recent paper discussing melting of martian glaciers can be found here

The application of machine learning to remote sensing of planetary surfaces. A paper describing the NOAH-H deep-learing system can be found here

Ongoing studies of the ExoMars landing site in Oxia Planum, Mars. Examples of this work can be found here and here

Mercury mapping and geology. Here are some examples of maps and science studies

Examples of recent and ongoing research funding:

2023-2027 Fluvial History of Noachis Terra and Hellas Basin, Mars. UK Space Agency funded.

2021-2027 Preperations for ExoMars Rover Operations and PanCam Deputy PI support. UK Space Agency.

2020-2023 Deep Learning Analysis of Planetary Surfaces. STFC funded.

2019-2023 Martian Aeolian Processes and Landforms at the ExoMars Rover Site in Oxia Planum. UK Space Agency funded.

2018-2021 Planetary Mapping. EU Horizon 2020 funded.

2014-2021 Identification, characterisation and Scientic evaluation of ExoMars Rover landing sites. Several UK Space Agency funded grants.

Teaching interests

2022-ongoing S841 production team: "Level 4 project module" (currently in production)

2019 SXPS288 module team meber: "Practical Science"

2015-2017 S141 module team chair: "Investigative and Mathematical Skills in Science".

2013-2015 S141 module team member: "Investigative and Mathematical Skills in Science".

2011 S288 topic specialist: I was topic specialist for both the "Remote Sensing" (GIS) and "Planetary Formation and Habitability" topics.

2012-2013 S288 production team: "Planetary Formation and Habitability". I conceived and designed the Mars Online Viewer (MOV) tool (although the hard coding work was done by Andy Sutton from LTS!), I wrote course materials for investigation 4 of the topic, and also wrote the TMAs.

Impact and engagement

Examples of recent public engagement activities include:

2023 Wycombe Astronomical society, "Mars Geology" lecture

2022 Shropshire Geological society, "Mars Geology" lecture

2022 UK Space Agency 'Mars Day' panel member

2021 Interview, BBC news and BBC news channel

2021 Geological Society of London Invited lecture “The Geology of Mars” (link)

External collaborations

Examples of external collaborations include:

  1. ExoMars PanCam team collaboration: mainly with Andrew Coates (PI) and others at MSSL
  2. Mars fluvial systems: Steve Banaham, Joel Davis and Sanjeev Gupta at Imperial College London; Pete Grindrod at Natural History Museum; Josh Ahmed at University of Hull; Jeff Peakall at University of Leeds.
  3. Computational Fluid Dynamics modelling of winds on Mars: Derek Jackon at University of Ulster
  4. Glacial and periglacial landforms: Colman Gallagher at UCD (Ireland); Frances Butcher at University of Sheffield
  5. Machine Learning applied to planetary surfaces: Mark Woods at CFMS Services ltd; Luc Joudrier and Elliot Sefton-Nash at ESA

Projects

Using Machine Learning And Trace Gas Orbiter Cassis Multispectral Images For ExoMars Rover Strategic Operations And Mars Science

The ESA ExoMars Trace Gas Orbiter spacecraft has been in orbit around Mars since 2016. It carries a variety of instruments including CaSSIS, a high resolution camera with 4 bands (i.e. it can see in 4-'colours') and stereo capability to measure the shape of the surface. CaSSIS adds a new dimension to the already enormous archive of Mars images generated by previous NASA and ESA spacecraft. In fact, the sheer scale of the Mars imaging dataset has made it difficult to use - no one person, or even a group of people, can look at every image in detail. For this reason, this project aims to use new Deep Learning (DL, a type of 'AI')techniques to provide a means of analysing these huge datasets; in essence, doing some of the 'leg work' before humans then check and correct errors in the the automated results and proceed with in-depth analysis. A key feature of visual DL type approaches is that they use "training data" - usually digitised records of '"truth" made by trained humans - to learn from them what is right and wrong when identifying features or textures. With a large, well-designed training set, DL can rapidly analyse huge numbers of images, and produce similar outputs to human operators. This project covers three research areas, each using DL techniques to analyse large datasets. Each builds on human mapping and digitising results our group has already done to support the ESA ExoMars Rover mission (delayed from 2022to 2028) and also makes use of our ongoing CaSSIS team membership, allowing new CaSSIS images to be rapidly targeted and acquired. The three areas are: (i)Greatly expanding the current geological map of the ExoMars Rover landing site. This needs to be done to prepare for the 2028 launch, as the area covered by the existing 2022 map is unlikely to be suitable for the 2028 mission. The problem is that the image data available are of such high resolution (up to 25 cm/pixel) that the current map took years to produce. Manually extending the map to an even larger areas is unrealistic. However, we will use our existing map to train a DL model to identify the surface textures and colours (using CaSSIS) of the various geological units, thus greatly improving the speed we can do the new mapping. (ii) Measuring the orientations of large wind-blown ripples (known as Transverse Aeolian Ridges, or TARs) on a global scale, and comparing these with wind directions generated by advanced computer models of the martian atmosphere. Ithas been observed that TARs are generally immobile, yet they must once have been active as they are very common on Mars. As we also know that Mars' recent climate has changed both systematically and in repeatable cycles over the last 20 years, we can use different climate models setups to see which climate period best matches the measured TAR orientations - and thus when they were active. We will use a DL 'TAR-finder' to make the orientation measurements automatically (we already have a working prototype) making use of CaSSIS and other high resolution data to train the models. (iii) Mapping the population of km-scale mounds (small hills) across the 'dichotomy' region of Mars (the boundary between the ancient southern highlands and the younger northern lowlands). In a previous study, we mapped out ~15,000 mounds manually, yet perhaps ten times this number are present along the dichotomy. The mounds are very important, as our recent study of just one section of the dichotomy shows that they represent ancient parts of the highlands that were almost obliterated by erosion, more than 3.7 billion years ago. We want to find out if this is true across the whole dichotomy region, so we will use DL to map the mounds automatically, and then use CaSSIS and other data to test whether they are also outliers from the highlands. The outcome will be new Mars science results, plus a new 'blueprint' for applying DL to Mars data in preparation for the start of the ExoMars Rover mission in 2028.

PanCam & Enfys Operations

The proposal covers ongoing Pancam operations planning and staff training at Open University led by Prof. Balme, Deputy PI of PanCam. It provides funding for continued development of the PASTI tool - a browser-based software tool used in RFM tactical operations to allow the wider science team to select targets for PanCam and Enfys observations based on daily low-resolution mosaics. It funds Dr Banham to continue work on surface geology training programmes and operations preparation required for the Pancam/Enfys team to be able to exploit the data acquired. Finally it includes funding for IDS Schwenzer and her team to begin to develop the tools and methodologies required for rapid understanding of the geochemical environment of drill sites (and from that their habitability).

DEVELOPING AI-ASSISTED PARTICLE WALL ANALYSIS TECHNIQUES

developing AI-assisted particle analysis Techniques

PanCam Target Suggestion tool development

Development of an Ops tool forPanCam

ExoMars PanCam Deputy PI activity 2025-26

Ongoing ExoMars PanCam deputy PI activity

Environment, habitability, and the physics of the Martian polar caps (SP-11-139-AH)

Atmospheric and surface conditions on Earth, Mars and Venus, and thus their suitability for life, hinge on the planetary greenhouse effect and the temperature increase connected to it. A similar effect, known as the Solid State Greenhouse effect (SSGE), can be seen on moons and planets totally or partially covered with ice. Because of its global importance in the martian CO2 and dust cycle, this project tries to understand the SSGE through a series of experiments in a controlled environment combined with mathematical models. Thus we will be able to assess the temperatures within the polar caps.

JUICE Development Phase (RED ref: SP-13-052-AH)

OU activity on the ESA JUICE Development Phase up to end FY14/15

EXOMARS ROSALIND FRANKLIN ROVER SCIENCE (year 1 of 3 funding only)

This is partly a resubmission of the 2019 Aurora call, made due to the delay in the ExoMars Rover launch by two years. The project will prepare for ExoMars Rover surface operations and sccovers ience activity during surface operations . It also seeks a one year extension to the ongoing Aeolian Environments project fund t oensure that this project continues through the active mission

Wet, moist, or dry? Using digital terrain models to determine the amount of water that has shaped the surfaces of Earth, Mars and the Moon. (SE-10-183-MB)

The project reflects the vision of the proposer in that it puts observation at the forefront of planetary science and is focussed on the role of liquid water in shaping landscapes on Mars. By applying new terrain analysis techniques it also reflects the applicant’s vision in attempting to circumvent the age-old planetary science problem of “convergence of form” (i.e. where different landforms can look the same, but were actually formed by very different processes) which, in the absence of field data, can cause significant confusion. The proposed work is novel as our is the first group to seriously apply these terrain analysis techniques to bodies other than the Earth

A UK Consortium for Identification and Analysis of Mars Landing Sites: ExoMars 2018 and Beyond

• Identify and characterize a variety of potential landing sites for the ExoMars 2018 Rover with the aim of submitting proposals to the open call of Feb. 2014 • Support the ExoMars Landing Site Selection Working Group (LSSWG) by providing detailed characterisation of landing sites proposed by the international community. • Conduct detailed geological analyses of shortlisted landing sites to develop testable hypotheses to aid geological exploration of the landing site • Enable participation in current and future camera and mineralogical orbiting instruments to facilitate the ExoMars 2018 and other landing site studies • Position UK scientists for ExoMars Interdisciplinary Scientist and Guest Investigator Roles

DTG 2014

DTG 2014

Martian aeolian processes and landforms at the ExoMars Rover site: from orbit to surface

A project to study the effects of wind as a geological process at the ExoMars Rover landing site. The project included in-situ, remote sensing, climate/windflow modelling and fieldwork.

Planetary Science Consolidated Grant 2020-2023

STFC Planetary Science Consolidated grant - details to be entered here.

ExoMars landing sites machine -learning terrain analysis

A small project to "label" (identify) areas of the proposed ExoMars landing sites to support ESA machine learning technology development. The labelling “trains” the system to recognise different landform types.

ExoFIT Mars trial management

ExoFIT is a Mars rover trial for ESA, organised by Airbus Defence and Space. Balme has been invited to be Mission Scientist for this activity.

ExoMars TGO Guest Investigator Support

Support sought for possible Guest Investigator role on ExoMars Trace Gas Orbiter. Case fro TGO GI is already submitted to ESA, but support is sought from UK SA. Yes/no from ESA will be announced in late summer 2016, but UK SA have said that cases for support will still be required by the UK SA Aurora deadline. The proposed GI project has two parts part 1 aims to use TGO CASSIS camera data to study a region of mars called Arabia Terra. part 2 aims to use TGO CASSIS data to monitor dust devils.

STFC DTG 2015 - 2016 (2015 Intake)

STFC DTG Quota 2015-16 AMS record for students starting on or after 01/10/2015

UK ExoMars Rover Landing Site Science and Characterisation

Continuation of current UK SA funding to investigate ExoMars landing sites.

STFC IAA 2017

The funding from the STFC under their Impact Accelerator account is being used to strategically focus on translating our space research, developing new opportunities and providing support to foster entrepreneurialism among our academics and researchers. The funding from the 2017 STFC IAA will support projects aimed at: 1. Developing techniques to produce higher resolution remote sensing of surface temperature. 2. Production of a Digital Correlated Double Sampling (DCDS) instrument. 3. Developing techniques to determine the characteristics of ice.

The hidden hazard of melting ground-ice in Northern Iceland

This project will study the ‘hidden hazard’ posed by melting of shallow ground-ice in mountainous areas. The study is a combination of field measurements and remote sensing observations. The first part of the project is to investigate the ~500 000 m3 Móafellshyrna slide that was caused by melting of perched ice-rich sediments. The next step will be to apply these results to inhabited locations with similar ice-rich debris/mountainous settings. We will combine field geophysical measurements with remote sensing and modelling to investigate specific sites, and produce new empirical models to identify other ‘at-risk’ zones and determine the level of risk.

MURFI 2 management

Work organising UKSA-funded Mars Analogue Rover mission

(Aurora Studentship) Martian Regional Dust Storms: Implications for Entry, Descent and Landing

This grant supports a PhD studentship to perform atmospheric global and mesoscale modelling studies of small and medium scale dust events with relevance to ExoMars EDM and Rover entry, descent and landings. The student will investigate the behaviour of dust lifting parameterizations in the models that simulate the effect of small, convective vortices (dust devils) and lifting by large-scale near surface wind stress. The dependence on both local time of day, time of year and model resolution will be investigated. Results will be validated against past spacecraft entry, descent and landing data, with the aim of making improved predictions for future events.

Development and delivery of an instrument which, on request, produces images to emulate the Close-Up Imager (CLUPI) on the ExoMars Rover.

CLUPI (Close UP Imager) is an instrument being developed for ESA’s ExoMars rover mission that will provide close-up images of the martian surface. With this grant the CEI is developing a hardware and software emulator for the CLUPI instrument than can be used in rover field trials to train rover operators in CLUPI operation prior to the flight instrument being developed.

STFC Accelerator 2016

The funding from STFC under their Impact Accelerator Account is being used to stragically focus on translating our space research, developing new opportunities and providing support to foster entrepreneurialism among our academics and researchers. This project is building on current work to develop new techniques to produce higher resolution remote sensing of surface temperature data based on the principle of downscaling using additional datasets. The project is working in collaboration with Geoger Ltd to develop a software tool with commercial applications to provide specialist technical information at new spatial and temporal scales.

Astronomy and Planetary Sciences at the Open University

The aim of our programme in Astronomy & Planetary Science at the Open University (APSOU) is to carryout detailed investigations of the origin and evolution of galaxies, stars and planets with a special emphasis on our own Solar System through a combination of observation, simulation, laboratory analysis and theoretical modelling. Our research is divided into two broad areas, reflecting the historical research strengths. This research programme is well-matched to both nationally- and internationally-agreed research imperatives. In its final report, A Science Vision for European Astronomy2, Astronet’s Science Working Group identified four broad areas of strategic importance; our research covers major topics within each of these areas. APSOU projects also map onto two of the four Science Challenges that form STFC’s Road Map3 for science (‘How did the universe begin and how is it evolving?’ and ‘How do stars and planetary systems develop and is life unique to our planet?’). The present APSOU programme comprises 20 projects (labelled A to T), of which 6 are for consideration by the Astronomy Observation (AO) panel, 1 for Astronomy Theory (AT), and 13 for the Planetary Studies (PL) panel. The AO projects cover the breadth of the 7 themes recognised as UK strengths in the report of STFC’s Astronomy Advisory Panel (AAP), whilst the 13 PL projects are directed towards answering questions raised in two of the three themes identified as UK strengths in the roadmap of STFC’s Solar System Advisory Panel (SSAP)4.

Publications

Book

Martian Geomorphology (2011)

Book Chapter

Planetary Aeolian Geomorphology (2019)

Are different Martian gully morphologies due to different processes on the Kaiser dune field? (2019)

Dust Devil Sediment Transport: From Lab to Field to Global Impact (2017)

Orbital Observations of Dust Lofted by Daytime Convective Turbulence (2017)

Subglacial environments and the search for life beyond the Earth (2011)

The western Elysium Planitia palaeolake (2010)

Journal Article

Detecting and measuring Transverse Aeolian Ridges on Mars using deep learning (2026)

Geology of the Bach quadrangle (H15), Mercury (2025)

Impacts of mesoscale meteorology on the evolution of fluvial features in Lyot crater, Mars (2025)

Lobate Forms Around Craters on the Moon and Mercury: Origin From Landslides, Ejecta Flows and Modification Stage Collapse (2025)

The Timing and Origin of Lobate Ejecta Forms at Craters in Mercury's South Polar Region (2025)

Dichotomy retreat and aqueous alteration on Noachian Mars recorded in highland remnants (2025)

Widespread Depositional Fluvial Systems in Noachis Terra, Mars (2025)

Experimental simulation of high mobility processes and exotic pseudolevitation (2025)

Repeated and Long‐Lasting Fault Activation on Amazonian Mars as Demonstrated by Tectonically Induced Landslides (2024)

A Geostratigraphic Map of the Rachmaninoff Basin Area: Integrating Morphostratigraphic and Spectral Units on Mercury (2024)

Periodic Bedrock Ridges at Oxia Planum and Chryse Planitia, Mars: Evidence for widespread aeolian erosion of an ancient surface by regional paleowinds (2024)

The high-resolution map of Oxia Planum, Mars; the landing site of the ExoMars Rosalind Franklin rover mission (2024)

Widespread small grabens consistent with recent tectonism on Mercury (2023)

Geology of the Neruda quadrangle (H13), Mercury (2023)

The internal structure of a debris-covered glacier on Mars revealed by gully incision (2023)

Map of tectonic shortening structures in Chryse Planitia and Arabia Terra, Mars (2023)

Mawrth Vallis, Mars, classified using the NOAH-H deep-learning terrain classification system (2023)

Ancient alluvial plains at Oxia Planum, Mars (2023)

Rapid megaflood-triggered base-level rise on Mars (2023)

Geology of the Derain quadrangle (H10), Mercury (2023)

Oxia Planum, Mars, classified using the NOAH-H deep-learning terrain classification system (2023)

Eskers associated with buried glaciers in Mars' mid latitudes: recent advances and future directions (2023)

Hydrological History of a Palaeolake and Valley System on the Planetary Dichotomy in Arabia Terra, Mars (2022)

The impact of a shadows scheme on a Mars mesoscale climate model (2022)

Jezero crater, Mars: application of the deep learning NOAH-H terrain classification system (2022)

Rivers and Lakes in Western Arabia Terra: The Fluvial Catchment of the ExoMars 2022 Rover Landing Site (2022)

Planetary polar explorer – the case for a next-generation remote sensing mission to low Mars orbit (2022)

Surface topographic impact of subglacial water beneath the south polar ice cap of Mars (2022)

Mounds in Oxia Planum: The Burial and Exhumation of the ExoMars Rover Landing Site (2022)

NOAH-H, a deep-learning, terrain classification system for Mars: Results for the ExoMars Rover candidate landing sites (2022)

The geography of Oxia Planum (2021)

Explosive vent sites on mercury: Commonplace multiple eruptions and their implications (2021)

A Fault Surface Exposed on Mercury (2021)

Morphology, Morphometry and Distribution of Isolated Landforms in Southern Chryse Planitia, Mars (2021)

The Aeolian Environment of the Landing Site for the ExoMars Rosalind Franklin Rover in Oxia Planum, Mars (2021)

Sinuous ridges in Chukhung crater, Tempe Terra, Mars: Implications for fluvial, glacial, and glaciofluvial activity (2021)

Measuring Ripple and Dune Migration in Coprates Chasma, Valles Marineris: A Source to Sink Aeolian System on Mars? (2021)

Landforms indicative of regional warm based glaciation, Phlegra Montes, Mars (2021)

The impact of ground-ice thaw on landslide geomorphology and dynamics: two case studies in northern Iceland (2021)

Oxia Planum: The Landing Site for the ExoMars “Rosalind Franklin” Rover Mission: Geological Context and Prelanding Interpretation (2021)

Solar-System-Wide Significance of Mars Polar Science (2021)

Geology of the Debussy quadrangle (H14), Mercury (2021)

Modification of Caloris ejecta blocks by long-lived mass-wasting: A volatile-driven process? (2020)

Investigating the Neruda-Paramour thrust system, Mercury (2020)

Mud flow levitation on Mars: Insights from laboratory simulations (2020)

Reversing transverse dunes: Modelling of airflow switching using 3D computational fluid dynamics (2020)

Morphometry of a glacier-linked esker in NW Tempe Terra, Mars, and implications for sediment-discharge dynamics of subglacial drainage (2020)

Post‐Impact Evolution of the Southern Hale Crater Ejecta; Mars (2020)

Aram Dorsum: an extensive mid-Noachian age fluvial depositional system in Arabia Terra, Mars (2020)

Sustained fluvial deposition recorded in Mars’ Noachian stratigraphic record (2020)

Experimental evidence for lava-like mud flows under Martian surface conditions (2020)

Morphology, development, and sediment dynamics of elongating linear dunes on Mars (2020)

Present-day development of gully-channel sinuosity by carbon dioxide gas supported flows on Mars (2019)

A Diverse Array of Fluvial Depositional Systems in Arabia Terra: Evidence for mid‐Noachian to Early Hesperian Rivers on Mars (2019)

Modeled subglacial water flow routing supports localized intrusive heating as a possible cause of basal melting of Mars' south polar ice cap (2019)

Molards as an indicator of permafrost degradation and landslide processes (2019)

Gridmapping the northern plains of Mars: Geomorphological, Radar and Water-Equivalent Hydrogen results from Arcadia Plantia (2019)

Grid-mapping the northern plains of Mars: using morphotype and distribution of ice-related landforms to understand multiple ice-rich deposits in Utopia Planitia (2019)

Gridmapping the Northern Plains of Mars: A New Overview of Recent Water- and Ice-Related Landforms in Acidalia Planitia (2019)

Geology of the Hokusai quadrangle (H05), Mercury (2019)

The 2016 UK Space Agency Mars Utah Rover Field Investigation (MURFI) (2019)

Debris-flow release processes investigated through the analysis of multi-temporal LiDAR datasets in north-western Iceland (2019)

Time will tell: temporal evolution of Martian gullies and palaeoclimatic implications (2019)

The distribution of putative periglacial landforms on the martian northern plains (2018)

The Hypanis Valles delta: The last highstand of a sea on early Mars? (2018)

Episodic and Declining Fluvial Processes in Southwest Melas Chasma, Valles Marineris, Mars (2018)

In Situ Sampling of Relative Dust Devil Particle Loads and Their Vertical Grain Size Distributions (2018)

High-resolution investigations of Transverse Aeolian Ridges on Mars (2018)

Formation and degradation of chaotic terrain in the Galaxias regions of Mars: implications for near-surface storage of ice (2018)

Constructional Volcanic Edifices on Mercury: Candidates and Hypotheses of Formation (2018)

Surface-based 3D measurements of small aeolian bedforms on Mars and implications for estimating ExoMars rover traversability hazards (2018)

Discriminating between the roles of Late Pleistocene palaeodischarge and geological-topographic inheritance in fluvial longitudinal profile and channel development (2018)

Clastic Polygonal Networks Around Lyot Crater, Mars: Possible Formation Mechanisms From Morphometric Analysis (2018)

Recent basal melting of a mid-latitude glacier on Mars (2017)

Aqueous dune-like bedforms in Athabasca Valles and neighbouring locations utilized in palaeoflood reconstruction (2017)

Water induced sediment levitation enhances downslope transport on Mars (2017)

Clastic patterned ground in Lomonosov crater, Mars: examining fracture controlled formation mechanisms (2017)

The PanCam Instrument for the ExoMars Rover (2017)

Grid-based mapping: A method for rapidly determining the spatial distributions of small features over very large areas (2017)

The water cycle and regolith-atmosphere interaction at Gale crater, Mars (2017)

Regolith-atmosphere exchange of water in Mars' recent past (2017)

Diurnal Variation in Martian Dust Devil Activity (2017)

A novel topographic parameterization scheme indicates that martian gullies display the signature of liquid water (2016)

Editorial: Topical Volume on Dust Devils (2016)

Dust Devil Tracks (2016)

Particle Lifting Processes in Dust Devils (2016)

Field Measurements of Terrestrial and Martian Dust Devils (2016)

Extensive Noachian fluvial systems in Arabia Terra: Implications for early Martian climate (2016)

Transport processes induced by metastable boiling water under Martian surface conditions (2016)

History and Applications of Dust Devil Studies (2016)

Eskers in a complete, wet-based glacial system in the Phlegra Montes region, Mars (2015)

New insights on the roles of ice, water and climate change in recent landscape development on Mars. (2015)

The geological history of Nili Patera, Mars (2015)

The comparison of topographic long profiles of gullies on Earth to gullies on Mars: a signal of water on Mars (2015)

Ponding, draining and tilting of the Cerberus Plains; a cryolacustrine origin for the sinuous ridge and channel networks in Rahway Vallis, Mars (2015)

Evidence for Amazonian highly viscous lavas in the southern highlands on Mars (2015)

Laboratory simulation of debris flows over sand dunes: Insights into gully-formation (Mars) (2015)

Decameter thick remnant glacial ice deposits on Mars (2014)

A branching, positive relief network in the middle member of the Medusae Fossae Formation, Equatorial Mars - evidence for sapping? (2013)

Morphological evidence for geologically young thaw of ice on Mars: a review of recent studies using high-resolution imaging data (2013)

Uninhabited habitats on Mars (2012)

Field measurements of horizontal forward motion velocities of terrestrial dust devils: towards a proxy for ambient winds on Mars and Earth (2012)

In situ measurements of particle load and transport in dust devils (2011)

Fill and spill in Lethe Vallis: a recent flood-routing system in Elysium Planitia, Mars (2011)

The indication of Martian gully formation processes by slope-area analysis (2011)

Identifying Martian gully evolution (2011)

Landforms indicative of ground-ice thaw in the northern high latitudes of Mars (2011)

A background to Mars exploration and research (2011)

Transverse aeolian ridges (TARs) on Mars II: distributions, orientations, and ages (2011)

Sorted clastic stripes, lobes and associated gullies in high-latitude craters on Mars: landforms indicative of very recent, polycyclic ground-ice thaw and liquid flows (2011)

Enhanced runout and erosion by overland flow at low pressure and subfreezing conditions: experiments and application to Mars (2011)

Assessing the power law hypothesis for the size-frequency distribution of terrestrial and martian dust devils (2010)

Mapping Medusae Fossae Formation materials in the southern highlands of Mars (2010)

Groundwater processes in Hebes Chasma, Mars (2010)

A new approach to estimating hazard posed by debris flows in the Westfjords of Iceland (2010)

Dating martian climate change (2009)

An equatorial periglacial landscape on Mars (2009)

Sorted stone circles in Elysium Planitia, Mars: Implications for recent martian climate (2009)

Transverse Aeolian Ridges (TARs) on Mars (2008)

The meteorological signatures of dust devils on Mars (2007)

A comparison of methods used to estimate the height of sand dunes on Mars (2006)

Particle lifting at the soil-air interface by atmospheric pressure excursions in dust devils (2006)

Dust devils on Earth and Mars (2006)

Orientation and distribution of recent gullies in the southern hemisphere of Mars: Observations from High Resolution Stereo Camera/Mars Express (HRSC/MEX) and Mars Orbiter Camera/Mars Global Surveyor (MOC/MGS) data Camera/Mars Express (HRSC/MEX) and Mars Orbiter Camera/Mars Global Surveyor (MOC/MGS) data (2006)

Dust flux within dust devils: Preliminary laboratory simulations (2006)

Fracture toughness measurements on igneous rocks using a high-pressure, high-temperature rock fracture mechanics cell (2004)

Experimental and theoretical fracture mechanics applied to fracture of the crust of Venus (2004)

The dust ejection induced by a meteoroid impact as a possible initiator of dust devils on Mars: Laboratory experiment and numerical simulation (2004)

Martian dust devils: laboratory simulations of particle threshold (2003)

Mars: Dust devil track survey in Argyre Planitia and Hellas Basin (2003)

Friction wind speeds in dust devils: a field study (2003)

Salt-bearing fumarole deposits in the summit crater of Oldoinyo Lengai, Northern Tanzania: interactions between natrocarbonatite lava and meteoric water (2001)

Other

The ubiquity and significance of extensional grabens on Mercury’s lobate scarps (2021)

Presentation / Conference

ExoMars PanCam 3D Vision and Visualization (2024)

Mapping and Dip Measurements of Tectonic Shortening Structures in Western Arabia Terra, Mars (2023)

Atmosphere-surface interactions relating to ice-rich landforms in Lyot Crater, Mars (2022)

Timing Of Tectonic Shortening In Western Arabia Terra And Implications For The Exomars 2022 Rover Landing Site (2022)

Extensional Landforms as Evidence for Recent Large-Scale Compressional Tectonism? (2021)

Modelling the interaction between the atmosphere and surface ice at Lyot crater, Mars (2021)

Modelling the distribution of ice at Lyot crater, Mars (2021)

Geological mapping of Mawrth Vallis, Mars, by PLANMAP (2020)

Geologic Map of the Hokusai Quadrangle (H05) of Mercury (2020)

Geologic mapping of Mawrth Vallis, Mars (2020)

Geological mapping of the Neruda Quadrangle (H13) of Mercury (2020)

Geological Mapping of the Neruda Quadrangle (H13), Mercury (2020)

Modelling Esker Formation on Mars (2020)

Possible Transport of Basal Debris to the Surface of a Mid-Latitude Glacier on Mars (2020)

Geological mapping of Mawrth Vallis, Mars: First look (2020)

Internal Structure of a Glacier on Mars Revealed by Gully Incision (2020)

Distribution of Subsurface Carbon Dioxide Ice at Different Obliquities (2020)

Climate change and the water cycle on Mars (2020)

Stability of Subsurface Carbon Dioxide Ice over the Obliquity Cycle (2020)

Eskers on Mars: morphometric comparisons to eskers on Earth and implications for sediment-discharge dynamics of subglacial drainage (2019)

Eskers associated with mid-latitude glaciers on Mars and their palaeoenvironmental implications (2019)

Morphometries of eskers on Mars: comparisons to eskers on Earth and implications for sediment-discharge dynamics of subglacial drainage (2019)

Quaternary Mars? (2019)

ExoFiT: ExoMars-Like Field Trials – a Mission Simulation. (2019)

Eskers on Mars: Morphometric comparisons to eskers on Earth and implications for sediment-discharge dynamics of subglacial drainage (2019)

3D Morphometries of Eskers on Mars, and Comparisons to Eskers in Finland (2019)

Multi-Phase Sedment-Discharge Dynamics of Subglacial Drainage Recorded by a Glacier-Linked Esker in NW Tempe Terra, Mars (2019)

Explosive Vents on Mercury: Commonplace Multiple Eruptions and Their Implications (2019)

Potential Identification of sublimation-driven downslope mass movement on Mercury (2018)

Small smooth units (‘young’ lavas?) abutting lobate scarps on Mercury (2018)

1:3M Geological Mapping of the Derain (H-10) Quadrangle of Mercury (2018)

Geological Mapping of the Debussy Quadrangle (H-14) Preliminary Results (2018)

Comparison of Global-Scale and Mesoscale Modelling of Vertical Profiles in the Martian Atmosphere: How Does Model Resolution Impact Predictions of Conditions at Mission Landing Sites? (2018)

Post-deposition (and ongoing?) modification of Caloris ejecta blocks (2018)

Geological mapping of the Hokusai (H05) quadrangle of Mercury: Status update (2018)

Candidate constructional volcanic edifices on Mercury (2018)

Spatial distribution and morphometric measurements of circum-Caloris knobs on Mercury: Application of novel shadow measurements (2018)

Geological mapping of the Hokusai (H05) quadrangle of Mercury: Status update (2018)

Subsurface Volatile Deposition on Mars (2018)

Surface-based 3D measurements of small aeolian bedforms on Mars (2018)

Glacier-Linked Eskers on Mars: Environments of Recent Wet-Based Glaciation From Numerical Models (2018)

Evidence for Recent Wet-Based Crater Glaciation in Tempe Terra, Mars. (2018)

Wind-Stress Dust Lifting in a Mars Global Circulation Model: Representation across Resolutions (2017)

Geological Mapping of the Debussy Quadrangle (H-14) - Preliminary Results (2017)

Impact of Global Model Resolution on the Representation of Martian Wind-Stress Dust Lifting (2017)

Geological mapping of the Hokusai (H05) quadrangle of Mercury (2017)

Volcanic shields on Mercury identified at last? (2017)

Late-stage effusive volcanism on Mercury: Evidence from Mansurian impact basins (2017)

Morphometric Characterisation of Eskers Associated with an Extant Mid-Latitude Glacier on Mars (2017)

Eskers associated with Extant Glaciers in Mid-Latitude Graben on Mars: Evidence for Geothermal Controls upon Recent Basal Melting (2017)

Preliminary Results of 1:3 Million Geological Mapping of the Mercury Quadrangle H-10 (Derain) (2017)

UK Space Agency “Mars Utah Rover Field Investigation 2016” (MURFI 2016): overview of mission, aims and progress (2017)

Volcanic shields on Mercury identified at last? (2017)

Time will tell: temporal evolution of Martian gullies and paleoclimatic implications (2017)

Surface-Based 3d measurements of aeolian bedforms on Mars (2017)

New evidence for geothermal controls upon recent basal melting of mid-latitude glaciers on Mars (2017)

The Effect of Model Resolution on Wind-Stress Dust Lifting Within the LMD/UK Mars Global Circulation Model (2016)

How Do Martian Dust Devils Vary Throughout the Sol? (abstract) (2016)

How Do Martian Dust Devils Vary Throughout the Sol? (2016)

Regolith-atmosphere water vapour interaction at Gale crater (2016)

Characterizing Rock Abundance At ExoMars Landing Site Candidates (2016)

Preliminary findings from geological mapping of the Hokusai (H5) quadrangle of Mercury (2016)

Preliminary observations of Rustaveli basin, Mercury (2016)

Martian Dust Devils: When to Watch for Them (2016)

The Dorsa Argentea, Mars: Comparison to >5900 Terrestrial Esker Systems and Statistical Tests for Topographic Relationships (2016)

Investigating the Martian atmosphere using the ExoMars 2016 lander (2015)

The Hypanis fluvial deltaic system in Xanthe Terra: a candidate ExoMars 2018 Rover landing site (2015)

Evolving magmas, explosive eruptions and hydrothermal deposits at Nili Patea Caldera, Syrtis Major, Mars (2015)

The Nili Patea caldera; evolving magma, explosive eruptions and hydrothermal deposits on Mars. (2014)

Comparison of the Morphology of Crater-Slopes with Gullies to those Without Gullies (2012)

Using topographic derivatives of high resolution data on Earth and Mars to determine active processes on Mars (2012)

The morphologic difference between crater slopes with and without gullies on Mars (2012)

Towards climate reconstruction on Mars using landscape analysis: insights from terrestrial analogues (Invited) (2011)

Horizontal forward-motion velocities of terrestrial dust devils, comparison with ambient winds, and application to Mars (2011)

A flooded crater in Cerberus Palus, Mars: evidence for substantial volatile loss (2011)

How wet are gullies on Mars? Insights from high resolution topography (2011)

Effluent crater breaches and channels on Mars: processes, morphological relationships and implications for understanding hydrology (2011)

Morphologies associated with small impact crater clusters in the Western Elysium Planitia region of Mars (2011)

Quantitive analysis of gully long profiles on Earth and Mars (2010)

Geomorphic analysis of the formation processes of Martian gullies (2010)

Can water move sediment on present-day Mars? Insights into gully formation from laboratory simulations (2010)

Meteorologic conditions and the formation of terrestrial dust devils (2009)

Debris Flow as a Mechanism for Forming Martian Gullies (2009)

A recent, equatorial, periglacial environment on Mars (2009)

An evolutionary scheme for morphological classification of Martian gullies (2009)

Using patterns of debris flow erosion and deposition in the Icelandic Westfjords to delineate hazard zones (2009)

Morphologic properties of martian gully systems (2009)

Transverse Aeolian Ridges on Mars: Distribution, orientations, and ages (2009)

Debris flow as a mechanism for forming martian gullies (2009)

Direct in-situ measurement of natural dust devil sediment loading and flux (2009)

A recent, equatorial, periglacial environment on Mars (2009)

Icelandic debris flows and their relationship to Martian gullies (2008)

13 years of dust devil monitoring and in-situ sampling (2008)

Icelandic debris flow and their relationship to martian gullies (2008)

Megabarchans on Mars (2008)

Transverse Aeolian Ridges (TARs)on Mars (2008)

HiRISE and HRSC studies of the western Elysium Planitia region, Mars (2008)

Sedimentary rocks in Bequerel crater: origin as polar layered deposits during high obliquity (2008)

Small-scale morphologic properties of martian gullies: insights from analysis of HiRISE images (2008)

The distribution of Transverse Aeolian Ridges on Mars (2008)

Icelandic debris flow and their relationship to martian gullies (2008)

New evidence for equatorial sea ice on Mars from HiRISE images (2007)

Transverse Aeolian Ridges (TARs) on Mars (2007)

Stratigraphical evidence of Elysium sea ice from HiRise images (2007)

Morphological evidence for a sea-ice origin for Elysium Planitia platy terrain (2007)

Orientation and distribution of recent gullies in the southern hemisphere of Mars: observations from HRSC/MEX and MOC/MGS data (2006)

Transverse Aeolian Ridges (TARs) on Mars (2006)

Transverse Aeolian Ridges (TARs) on Mars (2006)

MSL landing sites in ancient layered terrain: Becquerel crater (2006)

The parallel grooves of Phobos: new evidence on their origin from HRSC Mars Express (2006)

New HRSC Mars Express images of the Elysium frozen sea complex (2006)

Dust devils on Earth and Mars: Extension of particle threshold laboratory simulations (2006)

Evidence on the Origin of Phobos’ Parallel Grooves from HRSC Mars Express (2006)

Preliminary Observations on New Images of the Elysium Frozen Sea Deposits from HRSC Mars Express (2006)

Dust devils on Mars: Effects of surface roughness on particle threshold (2005)

Preliminary results from a new study of transverse aeolian ridges (TARS) on Mars (2005)