This interdisciplinary project will focus on studying how we can improve our understanding of the spatial patterning of poverty and inequality across the UK and possibly internationally (depending on the student’s interests/skills and data availability). You will do this by combining existing GIS and administrative data resources on area-level deprivation with novel remote sensing and machine learning/artificial intelligence (AI) approaches. The aim is to better understand how poverty and inequality manifest themselves in the urban environment and how they have changed over time. The remote sensing component will also allow us to have more synoptic, ‘big-picture’ views of areas considering regional and country-level scales. How we measure inequality at this scale will include examining inequalities in factors such as urban sprawl, housing density and access to green space and how they can complement in situ measurements of physical, environmental and socioeconomic variables.
The UK is a highly geographically unequal country, with measures such as health, poverty, education, employment and wealth showing some of the most distinct differences across our shores, generalised as a ‘North-South’ divide[2,3]. These measures can be seen as both outcomes and predictors, as well as interacting with each other. Essentially these inequalities represent unequal social and economic experiences and exposures, resulting in detrimental effects on health, wellbeing, social mobility and productivity. While we have some good evidence about patterns of geographic inequality, there remains scope to better measure and understand the true nature of inequality in the country with a much ‘finer resolution’ and how these inequalities are changing in the rapidly developing urban landscapes. Traditional mapping methods and administrative data struggle to keep up with such rapid changes and therefore limit the evidence for supporting successful and equitable and sustainable ‘smart city’ development. Satellite and remote sensing technology, combined with machine learning and spatial statistics, offer new methods and answers to old problems of how to manage sustainable and equitable urban development and meet the ever-increasing demand from city-based populations. A strong motivation for introducing satellite images into the measurement of inequality, over-and-above the possibility to realise new dimensions of inequality not possible with administrative and ‘on-the-ground’ data, is that we have entered a new era of freely available satellite data (e.g. the ESA Sentinel constellation missions). We are experiencing a rapid growth of activities in the Space industry and the Earth Observation sector and these opportunities do not just support commercial activities, but also provide more efficient tools to the environmental management community and socio-economic research.
In terms of methodologies this project will focus on:
1) AI classification of urban areas: The work with AI and remote sensing aims to advance the classification and characterisation of urban environment into classes that have socioeconomic meaning in the context of studying inequality in the country under analysis. Research has been carried out in detecting urban areas[5,6], for instance focusing on informal settlements, however the problem has been generally approached from a land-use prospective. In this project, we want to use AI to have a more holistic approach to urban classification which is strongly linked to socioeconomic drivers of inequality. Fieldwork will also be introduced to the project here to validate and finalise our classifications via site visits, image-capture and audits. One of the expected challenges that you will need to solve is the fusion of satellite data from different sensors, together with other administrative and GIS datasets. You will approach this by considering Deep Learning. To combat the paucity of training data we will using Transfer Learning (e.g. where models previously built for optical sensors are adapted and used for radar sensors).
2) Spatio-temporal modelling: Once the classification maps of urban areas are obtained, you will evaluate the spatio-temporal patterns of inequality using novel, quantitative statistical analyses. This will incorporate spatial modelling, and more specifically, will focus on physical-spatial relationships via geographic coordinates and also practical-spatial relationships via the likes of travelling times and access to services. The relationships between our new inequality measure(s) and outcomes such as population health measures could then be explored.
The supervisory team for this project includes expertise in: assessing inequalities and health inequalities using existing administrative and cohort data (Tony Robertson); remote sensing, machine learning and AI (Armando Marino); and spatial and spatio-temporal statistical modelling (Craig Anderson). You will be based in the Division of Biological and Environmental Sciences (BES) at the University of Stirling alongside Dr Robertson and Dr Marino. Researchers in BES have a unique focus on the relationships between people and the environment. Alongside your work and supervisory team in Stirling, you will be supported by Dr Anderson from the School of Mathematics and Statistics, University of Glasgow and will be encouraged to join and engage with research groups and opportunities across both Universities and the IAPETUS2 scheme (see below).
Training and Skills
Training and skills development will be aligned to the student’s skills and experience and agreed between the student and the supervisory team. We envision face-to-face, online and hybrid training will be accessed in areas related research methods in machine learning, remote sensing/satellite imagery, social and environmental deprivation/inequalities and spatial statistics. Personal, professional and further research skill development will be identified through a skills gap analysis in the first 3 months of the PhD and these needs addressed through attendance at the University of Stirling’s Institute for Advanced Studies activities including induction, skills development courses, conferences and other development opportunities as identified and required. You will join and become an active member of the Environmental Sustainability and Human Health and the Earth and Planetary Observation Sciences research groups at the University of Stirling and the Environmental Statistics research group at the University of Glasgow. Membership will allow for you to access unique training, presentation and collaborative activities across the range of disciplines covered by these groups.