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New Zealand
USD 150 /hr

Expert Geochemist & Spatial Analyst | Geothermal, Metals & Water Quality Modeling

Profile Summary
Subject Matter Expertise
Services
Writing Technical Writing, Audio Transcription, General Proofreading & Editing
Research Gap Analysis, Gray Literature Search, Scientific and Technical Research, Systematic Literature Review, Secondary Data Collection
Consulting Scientific and Technical Consulting, Regulatory Consulting
Data & AI Predictive Modeling, Statistical Analysis, Image Processing, Image Analysis, Data Processing, Data Insights
Product Development Product Validation, Quality Assurance & Control (QA/QC), Concept Development
Work Experience

Owner / Founder

Land and Water Science

January 2018 - Present

Director

Land & Water Science

May 2014 - Present

Scientist (I - Senior Scientist)

GNS Science

January 2016 - January 2018

Senior Scientist - Hydrochemistry

GNS Science

April 2016 - August 2017

Senior Principal Scientist

Southland Regional Council

June 2011 - January 2016

Scientist, Principal Scientist, Science Manager

Environment Southland

2011 - 2016

PostdoctoralResearcher

University of Canterbury

January 2010 - December 2011

Postdoctoral Fellow

University of Canterbury College of Science

2010 - 2011

Chemistry, Food Science, and Science Teacher

Christchurch Boys High School

January 2004 - December 2009

Lecturer/ Teaching Fellow

Lincoln University

January 1999 - January 2001

Education

PhD (Geosciences)

University of Canterbury

January 2005 - December 2009

PhD in Geology/Fluid Chemistry (Geological Sciences)

University of Canterbury

2005 - 2009

BSc (Soil and Physical Sciences)

Lincoln University

1994 - 2008

Secondary School Teaching Diploma Science (College of Education)

University of Canterbury

2004 - 2004

Masters of Geoscience

University of Texas at Dallas

January 2001 - January 2003

Masters in Geology (Geological Sciences)

University of Texas at Dallas

2001 - 2003

Earth Sciences and Environmental Chemistry

Lincoln University

May 1995 - December 1999

Certifications
  • Certification details not provided.
Publications
JOURNAL ARTICLE
Using estuarine cores to assess changes in terrestrial-sediment loss and eutrophication in New River Estuary, Southland, New Zealand @article{Brown_2025, title={Using estuarine cores to assess changes in terrestrial-sediment loss and eutrophication in New River Estuary, Southland, New Zealand}, volume={3}, ISSN={2950-1172}, url={http://dx.doi.org/10.1016/j.eve.2025.100078}, DOI={10.1016/j.eve.2025.100078}, journal={Evolving Earth}, publisher={Elsevier BV}, author={Brown, Danielle J. and Rissmann, Clinton W.F. and Ward, Nick and Leybourne, Matthew I.}, year={2025}, month=jan, pages={100078} } . Evolving Earth.
Clinton W. F. Rissmann, Lisa K. Pearson, Ton H. Snelder (2024). Physiographic Environment Classification: a Controlling Factor Classification of Landscape Susceptibility to Waterborne Contaminant Loss . Environmental Management.
Rissmann, C.W.F., Pearson, L.K., Snelder, T.H.(2024). Physiographic Environment Classification: a Controlling Factor Classification of Landscape Susceptibility to Waterborne Contaminant Loss . Environmental Management. 74. (2). Microsoft.AspNetCore.Mvc.Localization.LocalizedHtmlString 230-255.
C. W. F. Rissmann, M. I. Leybourne, C. Benn, J. A. Kidder, L. K. Pearson (2022). Comparison of groundwater composition from the Monturaqui and Punta Negra Basins, northern Chile: implications for porphyry copper exploration . Geochemistry: Exploration, Environment, Analysis.
Rissmann, C.W.F., Leybourne, M.I., Benn, C., Kidder, J.A., Pearson, L.K.(2022). Comparison of groundwater composition from the Monturaqui and Punta Negra Basins, northern Chile: implications for porphyry copper exploration . Geochemistry Exploration Environment Analysis. 22. (2).
A review of hydrogeochemical mineral exploration in the Atacama Desert, Chile @article{Kidder_2020, title={A review of hydrogeochemical mineral exploration in the Atacama Desert, Chile}, volume={124}, ISSN={0169-1368}, url={http://dx.doi.org/10.1016/j.oregeorev.2020.103562}, DOI={10.1016/j.oregeorev.2020.103562}, journal={Ore Geology Reviews}, publisher={Elsevier BV}, author={Kidder, J.A. and Leybourne, M.I. and Layton-Matthews, D. and Bowell, R.J. and Rissmann, C.F.W.}, year={2020}, month=sep, pages={103562} } . Ore Geology Reviews.
Kidder, J.A., Leybourne, M.I., Layton-Matthews, D., Bowell, R.J., Rissmann, C.F.W.(2020). A review of hydrogeochemical mineral exploration in the Atacama Desert, Chile . Ore Geology Reviews. 124.
Rissmann, C.W.F., Pearson, L.K., Beyer, M., Couldrey, M.A., Lindsay, J.L., Martin, A.P., Baisden, W.T., Clough, T.J., Horton, T.W., Webster-Brown, J.G.(2019). A hydrochemically guided landscape classification system for modelling spatial variation in multiple water quality indices: Process-attribute mapping . Science of the Total Environment. 672. Microsoft.AspNetCore.Mvc.Localization.LocalizedHtmlString 815-833.
McDowell, R.W., Hedley, M.J., Pletnyakov, P., Rissmann, C., Catto, W., Patrick, W.(2019). Why are median phosphorus concentrations improving in New Zealand streams and rivers? . Journal of the Royal Society of New Zealand. 49. (2). Microsoft.AspNetCore.Mvc.Localization.LocalizedHtmlString 143-170.
CO2 flux geothermometer for geothermal exploration @article{Harvey_2017, title={CO2 flux geothermometer for geothermal exploration}, volume={213}, ISSN={0016-7037}, url={http://dx.doi.org/10.1016/j.gca.2017.06.025}, DOI={10.1016/j.gca.2017.06.025}, journal={Geochimica et Cosmochimica Acta}, publisher={Elsevier BV}, author={Harvey, M.C. and Rowland, J.V. and Chiodini, G. and Rissmann, C.F. and Bloomberg, S. and Fridriksson, T. and Oladottir, A.A.}, year={2017}, month=sep, pages={1–16} } . Geochimica et Cosmochimica Acta.
Harvey, M.C., Rowland, J.V., Chiodini, G., Rissmann, C.F., Bloomberg, S., Fridriksson, T., Oladottir, A.A.(2017). CO2 flux geothermometer for geothermal exploration . Geochimica Et Cosmochimica Acta. 213. Microsoft.AspNetCore.Mvc.Localization.LocalizedHtmlString 1-16.
Martin, A.P., Turnbull, R.E., Rissmann, C.W., Rieger, P.(2017). Heavy metal and metalloid concentrations in soils under pasture of southern New Zealand . Geoderma Regional. 11. Microsoft.AspNetCore.Mvc.Localization.LocalizedHtmlString 18-27.
Sun, L., Leybourne, M.I., Rissmann, C.F.W., Brikowski, T.(2016). Geochemistry of a large impoundment - Part II: Fe and Mn cycling and metal transport . Geochemistry Exploration Environment Analysis. 16. (2). Microsoft.AspNetCore.Mvc.Localization.LocalizedHtmlString 165-177.
Heat flux from magmatic hydrothermal systems related to availability of fluid recharge @article{Harvey_2015, title={Heat flux from magmatic hydrothermal systems related to availability of fluid recharge}, volume={302}, ISSN={0377-0273}, url={http://dx.doi.org/10.1016/j.jvolgeores.2015.07.003}, DOI={10.1016/j.jvolgeores.2015.07.003}, journal={Journal of Volcanology and Geothermal Research}, publisher={Elsevier BV}, author={Harvey, M.C. and Rowland, J.V. and Chiodini, G. and Rissmann, C.F. and Bloomberg, S. and Hernández, P.A. and Mazot, A. and Viveiros, F. and Werner, C.}, year={2015}, month=sep, pages={225–236} } . Journal of Volcanology and Geothermal Research.
The origin of solutes within the groundwaters of a high Andean aquifer @article{Rissmann_2015, title={The origin of solutes within the groundwaters of a high Andean aquifer}, volume={396}, ISSN={0009-2541}, url={http://dx.doi.org/10.1016/j.chemgeo.2014.11.029}, DOI={10.1016/j.chemgeo.2014.11.029}, journal={Chemical Geology}, publisher={Elsevier BV}, author={Rissmann, Clinton and Leybourne, Matthew and Benn, Chris and Christenson, Bruce}, year={2015}, month=mar, pages={164–181} } . Chemical Geology.
Rissmann, C., Leybourne, M., Benn, C., Christenson, B.(2015). The origin of solutes within the groundwaters of a high Andean aquifer . Chemical Geology. 396. Microsoft.AspNetCore.Mvc.Localization.LocalizedHtmlString 164-181.
Sun, L., Leybourne, M.I., Rissmann, C., Olariu, C., Sader, J., Barry, M., Basu, N., Bernhardt, V., Blake, B., Bradshaw, J., et al.(2015). Geochemistry of a large impoundment, Part I: Solute sources, mixing dynamics, and seasonal anoxia . Geochemistry Exploration Environment Analysis. 15. (1). Microsoft.AspNetCore.Mvc.Localization.LocalizedHtmlString 12-26.
Harvey, M.C., Rowland, J.V., Chiodini, G., Rissmann, C.F., Bloomberg, S., Hernández, P.A., Mazot, A., Viveiros, F., Werner, C.(2015). Heat flux from magmatic hydrothermal systems related to availability of fluid recharge . Journal of Volcanology and Geothermal Research. 302. Microsoft.AspNetCore.Mvc.Localization.LocalizedHtmlString 225-236.
Bloomberg, S., Werner, C., Rissmann, C., Mazot, A., Horton, T., Gravley, D., Kennedy, B., Oze, C.(2014). Soil CO2 emissions as a proxy for heat and mass flow assessment, Taupo¯ Volcanic Zone, New Zealand . Geochemistry Geophysics Geosystems. 15. (12). Microsoft.AspNetCore.Mvc.Localization.LocalizedHtmlString 4885-4904.
Surface heat flow and CO2 emissions within the Ohaaki hydrothermal field, Taupo Volcanic Zone, New Zealand @article{Rissmann_2012, title={Surface heat flow and CO2 emissions within the Ohaaki hydrothermal field, Taupo Volcanic Zone, New Zealand}, volume={27}, ISSN={0883-2927}, url={http://dx.doi.org/10.1016/j.apgeochem.2011.10.006}, DOI={10.1016/j.apgeochem.2011.10.006}, number={1}, journal={Applied Geochemistry}, publisher={Elsevier BV}, author={Rissmann, Clinton and Christenson, Bruce and Werner, Cynthia and Leybourne, Matthew and Cole, Jim and Gravley, Darren}, year={2012}, month=jan, pages={223–239} } . Applied Geochemistry.
Rissmann, C., Christenson, B., Werner, C., Leybourne, M., Cole, J., Gravley, D.(2012). Surface heat flow and CO 2 emissions within the Ohaaki hydrothermal field, Taupo Volcanic Zone, New Zealand . Applied Geochemistry. 27. (1). Microsoft.AspNetCore.Mvc.Localization.LocalizedHtmlString 223-239.
Fluid flow associated with silicic lava domes and faults, Ohaaki hydrothermal field, New Zealand @article{Rissmann_2011, title={Fluid flow associated with silicic lava domes and faults, Ohaaki hydrothermal field, New Zealand}, volume={204}, ISSN={0377-0273}, url={http://dx.doi.org/10.1016/j.jvolgeores.2011.05.002}, DOI={10.1016/j.jvolgeores.2011.05.002}, number={1–4}, journal={Journal of Volcanology and Geothermal Research}, publisher={Elsevier BV}, author={Rissmann, Clinton and Nicol, Andrew and Cole, Jim and Kennedy, Ben and Fairley, Jerry and Christenson, Bruce and Leybourne, Matthew and Milicich, Sarah and Ring, Uwe and Gravley, Darren}, year={2011}, month=jul, pages={12–26} } . Journal of Volcanology and Geothermal Research.
Rissmann, C., Nicol, A., Cole, J., Kennedy, B., Fairley, J., Christenson, B., Leybourne, M., Milicich, S., Ring, U., Gravley, D.(2011). Fluid flow associated with silicic lava domes and faults, Ohaaki hydrothermal field, New Zealand . Journal of Volcanology and Geothermal Research. 204. (1-4). Microsoft.AspNetCore.Mvc.Localization.LocalizedHtmlString 12-26.
PREPRINT
Clinton Rissmann, W Troy Baisden, Meti Yulianti, Rachel Murray, Claire Eyberg, Timothy Clough (2022). Quantifying the potential to reduce excess nitrogen flows within pasture-based agricultural systems in Aotearoa New Zealand: designing isotope tools .
Clinton WF Rissmann, Lisa K Pearson, Adam P Martin, Matthew I Leybourne, W Troy Baisden, Timothy J Clough, Richard W McDowell, Jenny G Webster Brown (2021). A hydrochemically guided landscape-based classification for water quality: a case study application of process-attribute mapping (PoAM) at a national scale .