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Our Team

Dr. Clint Rissmann
Adjunct Senior Fellow, Waterways Centre for Freshwater Management
University of Canterbury and Lincoln University

Prior to founding Land and Water Science, Clint has worked in the research and Regional Council science sector. Clint has over 15 years’ experience in the geothermal, greenhouse gas and water quality industries. His work includes delivering national and international assessments for geothermal exploration and resource assessment, landfill gas dynamics and environmental forensics including site and regional scale water quality assessments. He is also the leading proponent of the Physiographic Approach to understanding spatial variation in water quality outcomes, which is based upon an integrated understanding of the relationships between soil, geology, hydrology and biogeochemistry. Clint is a Senior Adjunct Fellow at the Waterways Center for Freshwater Management and a Project Scientist with the National Science Challenge. He is actively involved in supervising postgraduate students and is passionate about data-led scientific inquiry.

Andrew Boyce
General Manager

Prior to joining L&WS Ltd early in August 2021, Andrew had 20+ years of experience in the Australasian agri-business banking sector, having formerly been the Director of Revenue Growth for Rabobank New Zealand.  Andrew spent 15 years in Northland leading the agri-business team for ANZ and subsequently Rabobank, prior to moving into several national roles including one as Country Banking Coach.

Dr. Lisa Pearson 
Lead Earth and Environmental Scientist

Lisa is a senior environmental and earth scientist with over 12 years' experience in land and freshwater research and management. She has worked in both the academic and regional council science sectors, and in collaboration with research institutes. At Land and Water Science, Lisa is the lead Earth and Environmental Scientist. Lisa has extensive knowledge and experience in physiographic application, soils, nutrient management, catchment modelling, and GIS mapping. Lisa holds a Doctorate in Philosophy and Masters in Science (1st class Hons) in Geochemistry from the University of Waikato. Her academic research focused on lake nutrient dynamics and sediment geochemistry and has published nationally and internationally on these topics. She also has a Bachelor in Science in Earth Sciences. Lisa is a member of the New Zealand Soil Science Society and the New Zealand Freshwater Science Society.

Dr. Saeed Rahimi 
Lead Geospacial Scientist

Saeed is a Geospatial Information Scientist with more than 7 years of experience working in civil engineering, surveying, and electric power distribution companies as GIS analyst and consultant. Saeed’s research interests span various aspects of spatiotemporal data analysis including causal modelling, agent-based modelling, pattern recognition and explanation. In particular, Saeed is interested in exploring/adopting/advancing machine-learning techniques and artificial intelligence approaches to model geospatial dynamic phenomena (i.e., environmental processes, land use changes, animal and human movements, evolution of cities). He also performs basic research in the field of evolutionary computation (especially genetic programming) and spatial decision support systems. When not working, you can find Saeed climbing, at the gym, or reading about philosophy of science, history, or politics.

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Tim Campbell
Dr. Phil Clunies-Ross

Having worked and studied within the water engineering industry for over a decade, Tim established Campbell Water Design Limited.  He is an industrious and talented Irrigation Specialist contributing top-notch technical abilities and knowledge, coupled with project management skills.  Having designed water irrigation and effluent solutions within a range of agricultural, industrial and mining workplaces, Tim has in-depth understanding of the requirements each industry has, along with the necessary experience and the knowledge to get the job done right.

Phil is an environmental scientist, specializing in water resources management and environmental reporting.  He utilises the power of data and effective science communication to inform and inspire positive environmental stewardship. Phil is proficient in the development of digital environmental reporting products, and believes these tools can be effectively deployed to engage stakeholders and inform decision-making.  Before forming his own company eiQ Ltd, Phil worked in various scientific and digital-development roles.  Phil holds undergraduate level degrees in biomedical science and environmental science, as well as a PhD in water resources management.

Liam Diprose
Web Developer
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Ruby Meades
Graphic Designer

Ruby creates the unique visual figures for Land and Water Science projects. She has a Graduate Diploma in Visual Media and a Bachelor of Screen Arts (Animation). Her work at Land and Water Science has enabled her to explore scientific figure design and problem solve how to effectively communicate the science to a broad audience through a visual medium. Ruby enjoys learning about the science behind the figures she makes and what they're for. The most exciting part is having a distinctive overall style for the figures which will make them truly unique to Land and Water Science.


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Professor Matthew Leybourne

Matthew Leybourne is a Professor in Analytical and Isotopic Geochemistry at Queen’s University, Department of Geological Sciences and Geological Engineering (Canada). His research is focused on developing new analytical methods related to solution and laser ablation ICP-MS and low-level trace element determinations, the geochemistry of fluids associated with ore deposits (groundwater, marine water and hydrothermal systems), geochemical exploration, the petrogenesis of igneous rocks, and the timing of the onset of Plate Tectonics. Matt is also the Co-Director of the Queen’s Facility for Isotope Research (QFIR). Previously, Matt held roles at Laurentian University, GNS Science in New Zealand, and the University of Texas at Dallas.

James Harvey

James Harvey is a partner McCulloch and Partners and has had vast experience in both the commercial sector and public practice. James spent five years in Australia with an international mining company before returning home to become the Commercial Manager at Fonterra, Edendale. James works closely with rural clients providing strategies to mitigate risk and deliver economic benefits, growing businesses is a challenge that he enjoys. James has partnered up with Land and Water Science to help put in perspective the gains that Farmers and other industry groups can achieve by providing environmental strategies lead by science.

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Dr. Mark Harvey

Mark has over 13 years’ experience in international consulting, specialising in remote sensing methods including thermal infrared, photogrammetry, and satellite InSAR.  Mark holds a Doctorate in Philosophy from the University of Auckland. His academic research focused on UAS surveying, CO2 flux surveys, and surface heat flow evaluation of high-temperature geothermal areas.  Prior to working as an independent consultant, Mark worked at Jacob’s, gaining experience in GIS, geostatistics, geophysics (magnetic and gravity surveys), groundwater and gas sampling, geochemistry, and geology.

Dr. Pierre Chanut

Pierre is an Environmental Scientist with expertise in hydrological, water quality and hydro-ecological modelling. Pierre has a degree in Environmental Engineering, a Masters in Hydrology, Hydrochemistry, Soils and Environment and completed his PhD in Ecohydrology in 2019. He has worked internationally on projects focused on the impact of land use on river ecosystems, managed regional groundwater monitoring programmes and provided technical advice for policy makers. Pierre has published several papers documenting his ecohydrological research.  

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Troy Baisden

Troy specialises in understanding the flow of nutrients, water and carbon through terrestrial ecosystems and resulting impacts in freshwater. Troy studies climate change issues and land-to-water nutrient management at catchment scales, as they link into wider policy, health and economic systems. He connects science to policy and management through roles as an Honorary Professor in Auckland’s School of Environment, as Motu affiliate, as a Principal Investigator in Te Pūnaha Matatini Centre of Research Excellence on networks and complexity, and consultancy.

Gavin and Karen Tippett

Mt Iron Geodrill is based in Wanaka, Central Otago, New Zealand. It is owned and operated by Gavin and Karen Tippett. Gavin was born and raised on a farm in Southland, New Zealand, and studied at the University of Canterbury where he earned his Bachelor of Science (Geology), Post Graduate Diploma of Engineering Geology and Master of Science (Engineering Geology) qualifications. Gavin has over 15 years of experience in the geotechnical field and has worked for geotechnical consultancies in New Zealand and Australia. This has bought him a diverse range of experience over a wide range of projects from single house lots to large scale mining operations and civil projects.

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