Selected PublicationsStewart, M.K., Morgenstern, U., McDonnell, J.J., Pfister, L. 2012: The ‘hidden streamflow’ challenge in catchment hydrology: A call to action for streamwater transit time analysis. Invited Commentary, Hydrological Processes, Early View. doi: 10.1002/hyp.9262 Stewart, M.K. 2012: A 40-year record of carbon-14 and tritium in the Christchurch groundwater system, New Zealand: Dating of young samples with carbon-14. Journal of Hydrology 430-431, 50-68. DOI: 10.1016/j.jhydrol.2012.01.046 Stewart, M.K., Stevens, G., Thomas, J.T., van der Raaij, R., Trompetter, V. 2011: Nitrate sources and residence times of groundwater in the Waimea Plains, Nelson. Journal of Hydrology NZ 50(2), 313-338. Fahey, B.D., Davie, T.J.A., Stewart, M.K. 2011: The role of fog in the water balance of catchments in the East Otago uplands, South Island, New Zealand. Journal of Hydrology NZ 50(2), 279-292. Morgenstern, U., Stewart M. K., Stenger, R. 2010: Dating of streamwater using tritium in a post nuclear bomb pulse world: continuous variation of mean transit time with streamflow. Hydrology and Earth System Sciences 14, 2289-2301. Stewart, M.K., Morgenstern, U., McDonnell, J.J. 2010: Truncation of stream residence time: How the use of stable isotopes has skewed our concept of streamwater age and origin. Hydrological Processes 24(12), 1464-1459. Stewart, M.K., Fahey, B.D. 2010: Runoff generating processes in adjacent tussock grassland and pine plantation catchments as indicated by mean transit time estimation using tritium. Hydrology and Earth System Sciences 14(6),1021-1032. McDonnell, J.J., McGuire, K., Aggarwal, P., Beven, K., Biondi, D., Destouni, G., Dunn, S., James, A., Kirchner, J., Kraft, P., Lyon, S., Maloszewski, P., Newman, B., Pfister, L., Rinaldo, A., Rodhe, A., Sayama, T., Seibert, J., Solomon, K., Soulsby, C., Stewart, M., Tetzlaff, D., Tobin, C., Troch, P., Weiler, M., Western, A., Wörman, A., Wrede, S. 2010: How old is streamwater? Open questions in catchment transit time conceptualization, modelling and analysis. Hydrological Processes 24(12), 1745-1754. Stewart, M.K., Thomas, J.T. 2008: A conceptual model of flow to the Waikoropupu Springs, NW Nelson, New Zealand, based on hydrometric and tracer (18O, Cl, 3H, and CFC) evidence. Hydrology and Earth System Sciences 12, 1-19. Stewart, M.K., Bidwell V.J. 2008: Water, water everywhere. in A Continent on the Move: New Zealand Geoscience into the 21st Century. Ian J. Graham (Chief Editor), GSNZ Misc. Pub. 124, 302-305. Stewart, M.K., Mehlhorn, J., Elliott, S. 2007: Hydrometric and natural tracer (18O, silica, 3H and SF6) evidence for a dominant groundwater contribution to Pukemanga Stream, New Zealand. Hydrological Processes 21, 3340-3356.
Stewart M.K. Fahey, B.D. Davie, T. 2005: New light on streamwater sources in the Glendhu Experimental Catchments, East Otago, New Zealand. International Water Conference (NZHS, NZSSS & IAH (Australian Chapter)), Auckland, New Zealand. (Refereed conference paper 11p.)
Stewart, M.K., Thomas, J.T., Norris, M., Trompetter, V. 2004: Paleogroundwater in the Moutere Gravel aquifers near Nelson, New Zealand. Radiocarbon 46(2), 517-529.
McGlynn, B.L., McDonnell, J.J., Stewart, M., Seibert, J. 2003: On the relationships between catchment scale and streamwater mean residence time. Scientific Briefing, Hydrological Processes 17(1), 175-181. Stewart, M.K., Trompetter, V., van der Raaij, R 2002: Age and source of Canterbury Plains groundwater. Environment Canterbury Technical Report No. U02/30. 46 p. Christenson, B.W., Mroczek, E.K., Kennedy, B.M., van Soest, T., Stewart, M.K., Lyon, G.L. 2002: Ohaaki reservoir chemistry: characteristics of an arc-type hydrothermal system in the Taupo Volcanic Zone, New Zealand. Journal of Volcanology & Geothermal Research 115(1-2), 53-82. Stewart, M.K., Thomas, J.T. 2002: Moutere Valley groundwater: Nature and recharge from isotopes and chemistry. Institute of Geological and Nuclear Sciences science report 2002/22. 28p. Stewart, M.K., Trompetter, V., van der Raaij, R 2002: Age and source of Canterbury Plains groundwater. Environment Canterbury Technical Report No. U02/30. 46 p. Stewart, M., Morgenstern, U. 2001: Age and source of groundwater from isotope tracers. In Groundwaters of New Zealand, M.R. Rosen and P.A. White (eds). New Zealand Hydrological Society Inc., Wellington. Pp. 161-183.
Rosen, M.R., Bright, J., Carran, P., Stewart, M.K., Reeves, R. 1999: Estimating rainfall recharge and soil water residence times in Pukekohe, New Zealand, by combining geophysical, chemical and isotopic methods. Groundwater 37(6), 836-844. McDonnell, J.J., Rowe, L.K., Stewart, M. 1999: A combined tracer-hydrometric approach to assess the effect of catchment scale on water flow path, source, and age. Integrated Methods in Catchment Hydrology – Tracer, Remote Sensing and New Hydrometric techniques (Proceedings of IUGG 99 Symposium HS4, Birmingham, July. IAHS Publ. No. 258) Pp. 265-273. Christensen, B.W., Mroczec, E.K., Kennedy, B.M., Stewart, M.K., Lyon, G. 1998: Ohaaki reservoir chemistry: Insights into the nature and location of the heat source(s). Proceedings of the 20th Geothermal Workshop. Pp. 85-90. McDonnell, J.J., Brammer, D., Kendall, C., Hjerdt, N., Rowe, L.K., Stewart, M.K., Woods, R. 1998: Flow pathways on steep forested hillslopes: the tracer, tensiometer and trough approach. In: Environmental Forest Science (ed. M. Tani et al.), 463-474. Kluwer Academic Publishers, Dortrecht. Bidwell, V.J.; Stewart, M.K. 1997: Linear system model of water flow and oxygen-18 transport on a steep hillslope. Refereed Proceedings: Modsim 97 - International Congress on Modelling and Simulation, Hobart, Tasmania. Pp. 42-47. Giggenbach, W.F.; Stewart, M.K.; Sano, Y.; Goguel, R.L.; Lyon, G.L. 1995: Isotopic and chemical composition of waters and gases from the East Coast accretionary prism, New Zealand. Isotopic and geochemical techniques applied to geothermal investigations, IAEA-TECD 788, 209-230. Giggenbach, W.F.; Sheppard, D.S.; Robinson, B.W.; Stewart, M.K.; Lyon, G.L. 1994: Geochemical structure and position of the Waiotapu geothermal field, New Zealand. Geothermics 23(5/6), 599-644. Simmons, S.F.; Stewart, M.K.; Robinson, B.W.; Glover, R.B. 1994: The chemical and isotopic compositions of thermal waters at Waimangu, New Zealand. Geothermics 23(5/6), 539-554. Glover, R.B.; Stewart, M.K.; Crump, M.E.; Klyen, L.E.; Simmons, S.F. 1994: The relationship of chemical parameters to the cyclic behaviour of Inferno Crater Lake, Waimangu, New Zealand. Geothermics 23(5/6), 583-598. Stewart, M.K.; Lyon, G.L.; Robinson, B.W.; Glover, R.B. 1992: Fluid flow in the Rotorua Geothermal Field derived from isotopic and chemical data. Geothermics 21, 141-163. Stewart, M.K.; McDonnell, J.J. 1991: Modeling baseflow soil water residence times from denterium concentrations. Water Resources Research 27(10). 2681-2693. McDonnell, J.J.; Owens, I.F.; Stewart, M.K. 1991: A case study of shallow flow paths in a steep zero-order basin. Water Resources Bulletin 27(4), 679-685. McDonnell, J.J.; Stewart, M.K.; Owens, I.F. 1991: Effect of catchment-scale subsurface mixing on stream isotopic response. Water Resources Research 27(12), 3065-3073. McDonnell, J.J.; Bonell, M.; Stewart, M.K.; Pearce, A.J. 1990: Deuterium variations in storm rainfall: Implications for stream hydrograph separation. Water Resources Research 26(3), 455-458. Bonell, M.; Pearce, A.J.; Stewart, M.K. 1990: Identification of runoff production mechanisms using environmental isotopes in a tussock grassland catchment, Eastern Otago. New Zealand. Hydrological Processes 4(1), 15-34. Mazor, E.; Bosch, A.; Stewart, M.K.; Hulston, J.R. 1990: The geothermal system of Wairakei, N.Z.: Physical processes and age estimates inferred from noble gases. Applied Geochemistry 5(5-6), 605-624. Hedenquist, J.W.; Goff, F.; Phillips, F.M.; Elmore, D.; Stewart, M.K. 1990: Groundwater dilution and residence times, and constraints on chloride source, in the Mokai geothermal system, New Zealand, from chemical, stable isotope, tritium and chlorine-36 data. Journal of Geophysical Research 95, 19,365-19,375. Taylor, C.B.; Wilson, D.D.; Brown, L.J.; Stewart, M.K.; Burdon, R.J.; Brailsford, G.W. 1989: Sources and flow of North Canterbury Plains groundwater, New Zealand. Journal of Hydrology 106, 311-340. Simpson, Barbara; Stewart, M.K. 1987: Geochemical and isotopic identification of warm groundwaters in coastal basins near Tauranga, New Zealand. Chemical Geology 64, 67-77. Taylor, C.B.; Stewart, M.K. 1987: Hydrology of Rotorua geothermal aquifer, New Zealand. In: Isotope Techniques in Water Resources Development. IAEA-SM-299/95, 25-45. Pearce, A.J.; Stewart, M.K.; Sklash, M.G. 1986: Storm runoff generation in humid headwater catchments. I: Where does the water come from?. Water Resources Research 22(8), 1263-1272. Sklash, M.G.; Stewart, M.K.; Pearce, A.J. 1986: Storm runoff generation in humid headwater catchments. II: A case study of hillslope and low order stream response. Water Resources Research 22(8), 1273-1282. Hedenquist, J.R.; Stewart, M.K. 1985: Natural CO2-rich steam-heated waters in the Broadlands-Ohaaki geothermal system, New Zealand, their chemistry, distribution and corrosive nature. Geothermal Resources Council Transactions 9(2). 245-250. Henley, R.W.; Stewart, M.K. 1983: Chemical and isotopic changes in the hydrology of the Tauhara geothermal field due to exploitation at Wairakei. Journal of Volcanology and Geothermal Research 15(4), 285-314. Stewart, M.K.; Cox, M.A.; James, M.R.; Lyon, G.L. 1983: Deuterium in New Zealand rivers and streams. Scientific report (INS-R--320), Institute of Nuclear Sciences, DSIR, New Zealand. 32 p.
Giggenbach, W.F.; Stewart, M.K. 1982: Processes controlling the isotopic composition of steam and water discharges from steam vents and steam-heated pools in geothermal areas. Geothermics 11(2). 71-80. Hulston, J.R.; Stewart, M.K.; Glover, R.B.; Camales, R.A.; Bogie, I.M.; Barnett, P.R. 1982: Stable isotope geochemistry of the Tongonan geothermal system, Leyte, Phillippines. Proceedings, Pacific Geothermal Conference, University of Auckland Geothermal Institute, Auckland, N.Z. Pp. 265-270. Stewart, M.K.; Taylor, C.B. 1981: Environmental isotopes in New Zealand hydrology. Part 1. Introduction: The role of oxygen-18, deuterium and tritium in hydrology. New Zealand Journal of Science 24, 295-311.
Hulston, J.R.; Taylor, C.B.; Lyon, G.L.; Stewart, M.K.; Cox, M.A. 1981: Environmental isotopes in New Zealand hydrology. Part 2. Standards, measurement techniques and reporting of measurements for oxygen-18, deuterium and tritium in water. New Zealand Journal of Science 24, 313-322.
Stewart, M.K.; Williams P.W. 1981: Environmental isotopes in New Zealand hydrology. Part 3. Isotope hydrology of the Waikoropupu Springs and Takaka River, N.W. Nelson. New Zealand Journal of Science 24, 323-337.
Stewart, M.K.; Dicker, M.J.I.; Johnston, M.R. 1981: Environmental isotopes in New Zealand hydrology. Part 4. Oxygen isotope variations in subsurface waters of the Waimea Plains, Nelson. New Zealand Journal of Science 24, 339-348. Stewart, M.K.; Downes, C.J. 1981: Isotope hydrology of Waikoropupu Springs, New Zealand. Ln Isotope studies of hydrologic processes. Eds.: E.C. Perry and C. Montgomery. Northern Illinois University Press, DeKalb, IL. Pp. 15-23. Stewart, M.K. 1978: Stable isotopes in waters of the Wairakei geothermal area, New Zealand. In Stable Isotopes in the Earth Sciences. Robinson, B.W. Ed. N.Z. D.S.I.R. Bulletin 220. Pp. 113-120. Stewart, M.K. 1975: Stable isotope fractionation due to evaporation and isotopic exchange of falling water drops: Applications to atmospheric processes and evaporation of lakes. Journal of Geophysical Research 80(9), 1133-1146. Stewart, M.K.; Friedman, I. 1975: Deuterium fractionation between aqueous salt solutions and water vapour. Journal of Geophysical Research 80(27), 3812-3818. Stewart, M.K. 1975: Hydrogen and oxygen isotope studies on the McMurdo Ice Shelf, Antarctica. N.Z. Journal of Geology and Geophysics 18(1), 49-64. Stewart, M.K.; Hulston,J.R. 1975: Stable isotope ratios of volcanic steam from White Island, New Zealand. Bulletin Volcanologique 39(1), 28-46. Stewart, M.K. 1974: Hydrogen and oxygen isotope fractionation during crystallisation of mirabilite and ice. Geochimica et Cosmochimica Acta 38, 167-172. Bailey, I.H.; Macklin, W.C.; Hulston, J.R.; Stewart, M.K. 1969: On the isotopic composition of hailstones. The Journal of Atmospheric Sciences 26, 689-694. Clarke, A.M.; Chirnside, A.; Hill, G.L.; Pope, Gillian; Stewart, M.K. 1967: Chronic dehydration and sodium depletion in patients with established ileostomies. Lancet, October 7, 1967, 740-743.  | |
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