Dr Willem P de Lange

Senior Lecturer

Qualifications: MSc DPhil Waikato

Research Interests

Coastal oceanography, coastal processes and climatic hazards; tsunami and storm surge prediction and mitigation; wave-induced sediment transport on the continental shelf and within estuaries; dispersal of materials in the coastal zone; numerical modeling.

Research Supervised


  • Coppede Cussioli, Mariana (2018). Ecological effects of turbidity variations in and around dredging areas in the Port of Tauranga
  • Emami, Amir (2016). Variations to the Groundwater Seepage Face on Meso-tidal Dissipative Beaches
  • Vetrova, Varvara (2016). Selected data exploration methods in hydroclimatology.
  • Harrison, Shawn (2015). Morphodynamics of Ebb-Tidal Deltas.
  • Liu, Zhi (2014). Hydrodynamic and sediment transport numerical modelling and applications at Tairua Estuary, New Zealand.
  • Flaim, Bryna (2012). Sediment dispersion at the New Zealand marine disposal ground, Northeast New Zealand.
  • Pritchard, Timothy (2012). Determining potential for pollutant impacts in dynamic coastal waters: comparing morphological settings
  • Cameron, Stewart (2011). Manipulation of carbon media, temperature and hydraulic efficiency to increase nitrate removal rate in denitrification beds
  • Gibbs, Denis (2011). MacKinder meets Buzan: A geopolitical extension to security complex theory with an emphasis on the polar regions.
  • Schimel, Alexandre (2011). Quantitative Comparison of Benthic Habitat Maps Derived From Multibeam Echosounder Backscatter Data
  • Tay, Hui Woon (2011). Nutrient dynamics in shallow tidally-dominated estuaries
  • Dunn, Amber (2010). Coastal storm activity along the Eastern North Island of New Zealand - East Cape to Wellington.

MSc (Research)

  • Cope, Jane (2018). The modification of toheroa habitat by streams on Ripiro Beach.
  • Harpur, Alexander (2016). Anthropogenic influences on the sedimentary evolution of the Coromandel Harbour”.
  • MacPherson, David (2016). An Integrated Stratigraphy of Tauranga Harbour.
  • Mills, Philippa (2016). Failure mechanisms in sensitive volcanic soils in the Tauranga Region, New Zealand.
  • Podrumac, Alyosha (2016). Holocene Evolution of the Upper Western Channel within Tauranga Harbour.
  • Christophers, Amy (2015). Paleogeomorphic reconstruction of the Omokoroa Domain, Bay of Plenty, New Zealand.
  • Garae, Camillia (2015). Estimating patterns and rates of coastal cliff retreat around Tauranga Harbour.


  • Manderson, Tyler (2017). Causes of diurnal ground movements at Omokoroa.
  • Upiap, Joyce (2016). The fate of contaminated sediments in the Ohinemuri & Lower Waihou rivers, New Zealand.
  • Park, Justine (2016). Assessment of the potential interactions of an oil spill with sediments on the west coast of New Zealand
  • Watson, Holly (2016). Potential impacts of wharf extensions on the hydrodynamics of Stella Passage and upstream regions of Tauranga Harbour, New Zealand.
  • Sturgess, Nicole (2015). Mapping the ecological and biophysical character of seabed habitats of the Paraninihi Marine Reserve, Taranaki, New Zealand.
  • de Groot, Neeltje (2014). The extent of burial of the Rena oil spill within Bay of Plenty coastal sediments.
  • McKenzie, James (2014). Predicted hydrodynamic and sediment transport impacts of breakwater construction in Tauranga Harbour, New Zealand.
  • Boulay, Sebastien (2012). Analysis of multibeam sonar data for benthic habitat characterization of the Port of Tauranga, New Zealand.
  • Mawer, Joshua (2012). Morphology of the Te Tumu cut under the potential re-diversion of the Kaituna River.
  • Robinson, Benjamin (2012). Hydrodynamic impacts of tectonics in prehistoric Ohiwa Harbour, North Island, New Zealand.
  • Muller, Joshua (2011). Influence of vegetation cover on coastal aquifer fluctuation and sand transport on Matakana Island.
  • Philip, Naiten (2010). Human,climatic and oceanographic influences on the marine environment of Pohnpei, Federated States of Micronesia.


  • Ahmed, Tofeeq  (2019). Distribution of mine waste along the Waihou River flood plains.


  • Ramli, Andi (2012). The amplification of tsunamis by Mercury Bay, New Zealand.

Teaching Commitments


Environmental Change; Environmental Impacts; Geology; Oceanography

Natural Hazards; Risk Assessment

Recent Publications

  • Kluger, M. O., Jorat, M. E., Moon, V. G., Kreiter, S., De Lange, W. P., Mörz, T., . . . Lowe, D. J. (2020). Rainfall threshold for initiating effective stress decrease and failure in weathered tephra slopes. Landslides, 17, 267-281. doi:10.1007/s10346-019-01289-2 Open Access version:

  • Cussioli, M. C., Seeger, D., Pratt, D. R., Bryan, K. R., Bischof, K., de Lange, W. P., . . . Pilditch, C. A. (2020). Spectral differences in the underwater light regime caused by sediment types in New Zealand estuaries: implications for seagrass photosynthesis. Geo-Marine Letters, 9 pages. doi:10.1007/s00367-020-00640-0

  • De Lange, W. (2020). Morphological changes for southeastern Matakana Island (Panepane Point) and Matakana Banks (ebb tidal delta) 2016-20. Hamilton, New Zealand.

  • Moon, V., De Lange, W., Manderson, T., & Robertson, T. (2019). Triggering of landslides in sensitive soils, Bay of Plenty, New Zealand. In P. J. J. Kamp, & A. Pittari (Eds.), Abstract Volume: Geosciences 2019 (pp. 139). Conference held in Hamilton, New Zealand.

View All research publications by Willem de Lange

Contact Details

Room: DE.1.01
Phone: +64 7 837 9385