Koji Tominaga's academic homepage

About me

Update (as of December 2011): I'm finishing my PhD early 2013 and therefore will be looking for research opportunities around that time

In Central Ontario, Canada, 2006 I am currently (2009-2013) a PhD student at the University of Oslo in Norway, and my thesis concerns the eutrophication status of a lake called Vansjø, southeastern Norway. My research here is on the lake's mechanisms of the seasonal and annual nutrient (phosphorus) balances. Eventually, these mechanisms are coded into a computer simulation model. This model is used for calculating the future improvement in response to some of the abatement measures on anthropogenic activities that may be suggested in the area in the coming years.

See more about the project EUTROPIA here, the Department of Biology, and the Integrative Biology group (link to my page at the IB webpage).

Before coming to Norway I spent 6 years in Canada to obtain my undergraduate degree in environmental and resource sciences (2003-2007) and an MSc degree in watershed ecosystems sciences (now known as ELS) (2007-2009), both at Trent University. While I was at Trent I got training in chemical laboratory work, map production and satellite image processing, soil and surface water collection and analyses, scripting programming with Python and R, cross OS model evaluation, and handling and designing of large data sets using a high performance computing server, in addition to publishing and presenting works in the academic community.

My BSc thesis was on Ontario's forest health (cooperation with Ontario Ministry of the Environment), and MSc was on evaluating multiple acidification models using a long-term data set from the Hubbard Brook Experimental Forest, New Hampshire, USA. Both my theses were completed while belonging to the Ecosystems Research Group. My old website at Trent has been moved here, and you can find some R teaching materials that I created and used before.

Before going to Canada right after my high school, I had been in Japan almost my whole life, but it seems that now I have been to so many countries in relation to work (Canada, USA, Ireland, Sweden, Netherlands, Germany, Norway, and Finland), and also as a traveller/tourist (Thailand, Laos, Myanmar, Malaysia, Singapore, and many European countries). I learned to use English, and met people from all around the world, not just those countries that I visited or lived.

Curriculum vitae

Education

Ph.D., University of Oslo, Norway [2009-2013] (Planned)
M.Sc., Trent University, Canada [2007-2009]
B.Sc., Trent University, Canada [2003-2007]

Current part-time position

Norwegian Institute for Water Research [2011-2013] (Planned)

Academic exchanges

Norwegian Institute for Water Research [April-June 2009]
Technical University of Munich [February-March 2009]

Publications and communications

Copies available: please email me if you wish or do not have access to any of the following.

Theses

2009 Tominaga, K. Uncertainty evaluation of four dynamic acidification models: MAGIC, PnET-BGC, SAFE and VSD. 2009. M.Sc. Dissertation. Trent University, Canada.
2007 Tominaga, K. Monitoring of hardwood forest health in south-central Ontario, Canada: survival analysis and remote sensing analysis. B.Sc. Honours Thesis, Trent University, Canada.

Peer-reviewed journal articles

2012 Trolle, D., Hamilton, D.P., Hipsey, M.R., Bolding, K., Bruggeman, J., Mooij, W.M., Janse, J.H., Nielsen, A., Jeppesen, E., Elliott, J.A., Makler-Pick, V., Petzoldt, T., Rinke, K., Flindt, M.R., Arhonditsis, G.B., Gal, G., Bjerring, R., Tominaga, K., Hoen, J., Downing, S.A., Marques, D.M., Fragoso, C.R. Jr., Søndergaard, M., and Hanson, P.C. 2012. A community-based framework for aquatic ecosystem models. Hydrobiologia 683(1): 25-34. DOI:10.1007/s10750-011-0957-0
2010 Tominaga, K., Aherne, J., Watmough, S.A., Alveteg, M., Cosby, B.J., Driscoll, C.T., Posch, M., and Pourmokhtarian, A. 2010. Predicting acidification recovery at the Hubbard Brook Experimental Forest, New Hampshire, USA: Evaluation of four models. Environmental Science and Technology 44(23): 9003-9009. DOI:10.1021/es102243j
2010 Mooij, W.M., Trolle, D., Jeppesen, E., Arhonditsis, G., Belolipetsky, P.V., Chitamwebwa, D.B.R., Degermendzhy, A.G., DeAngelis, D.L., De Senerpont Domis, L.N., Downing, A.S., Elliott, J.A., Fragoso, C.R. Jr., Gaedke, U., Genova, S.N., Gulati, R.D., Håkansen, L., Hamilton, D.P., Hipsey, M.R., 't Hoen, J., Hülsmann, S., Los, F.J., Makler-Pick, V., Petzoldt, T., Prokopkin, I.G., Rinke, K., Schep, S.A., Tominaga, K., Van Dam, A.A., Van Nes, E.H., Wells, S.A., and Janse, J.H. 2010. Challenges and opportunities for integrating lake ecosystem modelling approaches. Aquatic Ecology 44(3): 633-667. DOI:10.1007/s10452-010-9339-3.
2009 Tominaga, K., Aherne, J., Watmough, S.A., Alveteg, M., Cosby, B.J., Driscoll, C.T., and Posch, M. 2009. Voyage without constellation: evaluating the performance of three uncalibrated process-oriented models. Hydrology Research 40: 261-272. DOI:10.2166/nh.2009.085. Erratum DOI: 10.2166/nh.2009.002.
2008 Tominaga, K., Watmough, S.A., and Aherne, J. 2008. Predicting tree survival in Ontario hardwood forests based on crown condition. Canadian Journal of Forest Research 38: 1730-1741. DOI:10.1139/X08-021.

Similar information can be found at my online profiles at ORCID, ResearchGate, Mendeley, Scopus, and Google Scholar Citations.

Peer-review contributions

- Science of the Total Environment (1 time)
- Enviromental Science & Technology (1 time)

Invited talk

2008 Tominaga, K., Aherne, J., and Watmough, S.A. Objective assessment of five process-oriented dynamic acidification models at Hubbard Brook. Hubbard Brook Committee of Science Meeting, Cary Institute of Ecosystem Studies, Millbrook, New York, USA. 14 April 2008.

Conference/workshop presentations - oral

2012 Tominaga, K., Finstad, A.G., Kaste, Ø, and Andersen, T. Future climate change impact on lakes in Fennoscandia: A dynamic mechanistic approach. 2012 ASLO Aquatic Sciences Meeting. Otsu, Japan. 8-13 July 2012.
2010 Tominaga, K. Ensemble model framework for lake ecosystem modelling - case study from acidification modelling. Lake Ecosystem Modelling Workshop. Silkeborg, Denmark. 20-22 September 2010.
2009 Tominaga, K., Aherne, J., Watmough, S.A., Alveteg, M., Cosby, B.J., Driscoll, T., Posch, M., and Pourmokhtarian, A. Predicting future soil and stream chemistry using an ensemble of acidification models at Hubbard Brook. 46th Annual Hubbard Brook Cooperators' Meeting, Lincoln, New Hampshire, USA. 7-8 July 2009.
2008 Tomianga, K., Aherne, J., and Watmough. S.A. Modelling the chemistry of soil and surface water at Hubbard Brook, New Hampshire, USA. 22nd Annual Gananoque Conference on Environmental Science and Engineering, Gananoque, Ontario, Canada. 1-3 February 2008.

Conference/workshop presentations - poster

2009 Tominaga, K., Aherne, J., Watmough, S.A., Alveteg, M., Cosby, B.J., Driscoll, C.T., Kiekbusch, J., Posch, M., Pourmokhtarian, A., Weis, W. 2009, and Huber, C. Modelling acidification recovery at long-term monitoring sites: a multi-model evaluation. 6th International Symposium on Ecosystem Behaviour BIOGEOMON 2009. The University of Helsinki, Finland. 29 June-3 July 2009.
2008 Tominaga, K., Aherne, J., Watmough, S.A., Alveteg, M., Cosby, B.J., Driscoll, C.T., and Posch, M. Evaluation of process-oriented acidification models at Hubbard Brook. Northeastern Ecosystem Research Cooperative Conference. University of New Hampshire, Durham, New Hampshire, USA. 12-13 November 2008.
2007 Tominaga, K. and Watmough S.A. Survival analysis of hardwood trees in southern Ontario. 21st Annual Gananoque Conference on Environmental Science and Engineering, Gananoque, Ontario, Canada. 2-4 February 2007

Other communications

I participated in international meetings at Trent University (Canada), Syracuse University (USA), Lund University (Sweden), National Institute for Public Health and the Environment (Netherlands), and Technical University of Munich (Germany). I have also participated in non-international meetings at Ontario Ministry of the Environment (Canada) and a few meetings and workshops in Norway. I have assisted with field works with Environment Canada and University College Dublin (Ireland). In addition I had opportunities to take part in courses at Technical University of Lisbon (Portugal) and Lund University.

Contact information

Postal address Department of Biology
University of Oslo
P.O. Box 1066 Blindern
0316 Oslo
Norway
Office phone +47 228 54505
Facsimille +47 228 54726
Email address koji.tominaga at bio.uio.no

Prepared and uploaded by Koji
Last update 8 Nov 2012