Personal profile
Biography
With a background in the Environmental Sciences, I have devoted much of my research career to modelling spatial interactions between human activity and the natural environment. Those spatial skills were initially developed during my PhD research into the risk of groundwater contamination by agricultural pesticides. In collaboration with economists and social scientists, I subsequently worked on highly interdisciplinary policy-driven projects underpinning recommendations for improving water quality in rivers, long-term protection of water resources, and land management options for reduction of greenhouse gas emissions.
In 2011, I joined Cefas as a GIS Analyst, applying my terrestrial modelling skills to problem-solving in marine and freshwater environments. This work included evaluating the efficacy of marine closures; mapping fishing activity and seabed integrity; assessing the influence of offshore energy production on marine ecosystems; assessing coastal vulnerability to storm surge and sea level rise in small island states. More recently I have focused on terrestrial influences on water quality in rivers, estuaries and coastal waters, with applications to food safety and food security, including microbiological risks in shellfish growing areas. This builds on my interest in the interconnectivity of terrestrial and marine systems, and the need to consider how climate change is likely to affect those relationships in the short, medium and long term.
I have led stakeholder workshops across the range of my research interests, and have authored and delivered training in cartographic design, spatial analysis and hydrological modelling. I am a professional member of the Chartered Institution of Water and Environmental Management (CIWEM), through which I hold Chartered Water and Environmental Manager (C.WEM) and Chartered Environmentalist (CEnv) status.
Education/Academic qualification
Doctor of Philosophy, Groundwater vulnerability mapping, University of East Anglia
Award Date: 12 Jul 2006
Master of Philosophy, Magnetostratigraphy of the Rhaetian in the UK, University of East Anglia
Award Date: 13 Jul 2000
Bachelor of Science, Environmental Sciences, University of East Anglia
Award Date: 2 Jul 1997
External positions
Principal Spatial Scientist, Centre for Environment, Fisheries & Aquaculture Science
2022 → …
Keywords
- Environmental Sciences
- Aquatic & coastal ecosystem health
- Coastal vulnerability
- Spatial analysis
- Water quality
- Land use
- Aquaculture & Fisheries
- Food from water
- Climate Change / Climate Science
- Climate impacts
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
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SDG 3 Good Health and Well-being
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SDG 6 Clean Water and Sanitation
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SDG 13 Climate Action
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SDG 14 Life Below Water
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SDG 15 Life on Land
Collaborations and top research areas from the last five years
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Vibrio vulnificus epidemiology and risk factors for mortality in the United States, 2000-2022
Hast, M., Baker-Austin, C., Lake, I., Paromita, P., Cui, Z., Jones, N. R., Posen, P. & Hughes, M. J., 2026, In: Infectious Diseases. 58, 2, p. 209-220 12 p.Research output: Contribution to journal › Article › peer-review
2 Citations (Scopus) -
Challenges and Limitations of Using Monitoring Data in Catchment-Based Models—A Case Study of Rivers Taw and Torridge, UK
Heal, R., Rostant, W. & Posen, P., 12 Aug 2025, In: Hydrology. 12, 8, 212.Research output: Contribution to journal › Article › peer-review
Open Access1 Citation (Scopus) -
Omission and pacing of events at the Norian-Rhaetian and Triassic-Jurassic transitions in Britain
Hounslow, M. W., Posen, P. E., Warrington, G. & Page, K. N., 18 Aug 2025, In: Geological Magazine. 162, e27.Research output: Contribution to journal › Article › peer-review
Open Access -
Eliciting expert opinion on GIS use for surveillance and disease response in the aquatic animal health domain
Riuzzi, G., Sbettega, F., Tavornpanich, S., Posen, P., Contiero, B., Mazzucato, M., Segato, S. & Ferrè, N., 23 Jul 2024, In: Frontiers in Marine Science. 11, 1429634.Research output: Contribution to journal › Article › peer-review
Open Access4 Citations (Scopus) -
Food-borne disease risk: biosurveillance in water networks
Posen, P. & Heywood, J., 12 Sept 2024, In: Eurosurveillance. 29, 37, e2400556.Research output: Contribution to journal › Article › peer-review
Open Access