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Dr Jon Hawkings

Dr Jon Hawkings

Dr Jon Hawkings

Visiting Research Fellow

Area of research

Production of Bioavailable Nutrients Under Glaciers

School of Geographical Sciences,
University Road, Bristol BS8 1SS
(See a map)

+44 (0) 117 3318352


My PhD research is focused on subglacial production and export of bioavailable nutrients via biogeochemical weathering processes. The Polar regions are home to some of the world's most highly productive oceanic ecosystems. There is an emerging body of evidence to suggest that meltwater and iceberg delivery from ice sheets play a key role in sustaining these systems by providing essential nutrients. Glacially derived nutrients may enhance primary production, helping to sustain and drive complex and economically important marine ecosystems. In a changing climate, understanding the changes that might occur in the future is important.

My research focuses on bioavailable iron, phosphorus, nitrogen, silica and trace element (e.g. Mo, V, Mn) production and export in subglacial environments. These nutrients are considered essential for stimulating primary production in the oceans surrounding the Greenland and Antarctic Ice Sheets, and in wider glacial environments such as the Pacific Northwest.

 Iceberg entrained debris in Southern Greenland

The principle supervisor on my PhD is Professor Jemma Wadham, with Professor Martyn Tranter as my secondary supervisor.

For my personal website please visit:




April 2015 - present:

PDRA and temporary lecuturer - School of Geographical Sciences, University of Bristol

Part of the NERC funded DELVE project - DEveLopment and Validation of first generation chemical sensors for glacial Ecosystems

Lecturing for the year 1 "Cryopshere" course and year 3 "Ice and Oceans in the Carbon Cycle" course. 


October 2011 - April 2015:

Geography PhD student - School of Geographical Sciences, University of Bristol

"The Production and Export of Essential Nutrients from Ice Sheets"


October 2005 - July 2009:

MSci Geography (Physical Geography syllabus of study) - School of Geographical Sciences, Univerisity of Bristol


Currently teaching two courses:

- Year 1: Cryosphere 1 (Physical Geography)

- Year 3: Ice and Oceans in the Carbon Cycle



  • Subglacial and supraglacial biogeochemical processes
  • Glacial nutrient production and cycling
  • Microbial life in extreme environments

Recent publications

View complete publications list in the University of Bristol publications system

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