| Use of hierarchical cluster analysis to assess the representativeness of a baseline groundwater quality monitoring network: comparison of New Zealand's national and regional … CJ Daughney, M Raiber, M Moreau-Fournier, U Morgenstern, ... Hydrogeology journal 20 (1), 185, 2012 | 93 | 2012 |
| Discriminant analysis for estimation of groundwater age from hydrochemistry and well construction: application to New Zealand aquifers CJ Daughney, U Morgenstern, R van Der Raaij, RR Reeves Hydrogeology Journal 18 (2), 417, 2010 | 44 | 2010 |
| Age and source of Canterbury plains groundwater M Stewart, R Van der Raaij, V Trompetter, G Environmental Monitoring Environment Canterbury, 2002 | 35 | 2002 |
| Factors affecting the electrodeposition of 226 Ra N Whitehead, R Ditchburn, W McCabe, R Van Der Raaij Journal of radioanalytical and nuclear chemistry 160 (2), 477-485, 1992 | 28 | 1992 |
| Age-dating of New Zealand groundwaters using sulphur hexafluoride RW Van der Raaij Te Herenga Waka—Victoria University of Wellington, 2003 | 21 | 2003 |
| Mean residence times and sources of Christchurch springs MK Stewart, U Morgenstern, M Tsujimura, MA Gusyev, K Sakakibara, ... Journal of Hydrology (New Zealand) 57 (2), 81-94, 2018 | 19 | 2018 |
| A national isotope survey to define the sources of nitrate contamination in New Zealand freshwaters KM Rogers, R van der Raaij, A Phillips, M Stewart Journal of Hydrology 617, 129131, 2023 | 18 | 2023 |
| Metabolic diversity and aero-tolerance in anammox bacteria from geochemically distinct aquifers OE Mosley, E Gios, L Weaver, M Close, C Daughney, R van der Raaij, ... Msystems 7 (1), e01255-21, 2022 | 18 | 2022 |
| Potential groundwater age tracer found: Halon‐1301 (CF3Br), as previously identified as CFC‐13 (CF3Cl) M Beyer, R van der Raaij, U Morgenstern, B Jackson Water Resources Research 50 (9), 7318-7331, 2014 | 17 | 2014 |
| Nitrate sources and residence times of groundwater in the Waimea Plains, Nelson MK Stewart, G Stevens, JT Thomas, R van der Raaij, V Trompetter Journal of Hydrology (New Zealand) 50 (2), 313-338, 2011 | 13 | 2011 |
| Response of the Christchurch groundwater system to exploitation: Carbon-14 and tritium study revisited MK Stewart, RW van der Raaij Science of the Total Environment 817, 152730, 2022 | 9 | 2022 |
| Assessment of excess N₂ for quantifying actual denitrification in New Zealand groundwater systems H Martindale, R van der Raaij, CJ Daughney, U Morgenstern, R Singh, ... Journal of Hydrology (New Zealand) 58 (1), 1-18, 2019 | 8 | 2019 |
| Assessment of Halon-1301 as a groundwater age tracer M Beyer, R van der Raaij, U Morgenstern, B Jackson Hydrology and Earth System Sciences 19 (6), 2775-2789, 2015 | 8 | 2015 |
| Groundwater flow pattern in the Ruataniwha Plains as derived from the isotope and chemistry signature of the water U Morgenstern, R Van der Raaij, H Baalousha | 6 | 2012 |
| From rain through river catchment to aquifer: the flow of water through the Wairau hydrologic system U Morgenstern, P Davidson, DB Townsend, PA White, R Van der Raaij, ... GNS Science, Te Pū Ao, 2019 | 5 | 2019 |
| Heretaunga Plains aquifers: groundwater dynamics, source and hydrochemical processes as inferred from age, chemistry, and stable isotope tracer data/U Morgenstern, JG Begg, RW … U Morgenstern, JG Begg, R Van der Raaij, M Moreau, H Martindale, ... GNS Science report; 2017/33., 2018 | 5 | 2018 |
| The Marlborough deep Wairau aquifer sustainability review 2008: isotopic indicators U Morgenstern, RW van der Raaij, V Trompetter, K McBeth | 5 | 2008 |
| Groundwater age-dating in South Canterbury and Orari areas R Van der Raaij GNS Science Consultancy Report 294, 18, 2007 | 5 | 2007 |
| Ohau and Waikawa catchments of the Horowhenua Groundwater Management Zone: groundwater dynamics, source, and hydrochemical processes as inferred from the groundwater tracer data U Morgenstern, R Van der Raaij, T Baisden, MK Stewart, H Martindale, ... GNS Science, Te Pū Ao, 2019 | 4 | 2019 |
| Halon-1301–further evidence of its performance as an age tracer in New Zealand groundwater M Beyer, U Morgenstern, R van Der Raaij, H Martindale Hydrology and Earth System Sciences 21 (8), 4213-4231, 2017 | 4 | 2017 |
