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New tech will help NZ prepare for quakes and other hazards

03 November 2023

Advances in technology will help Aotearoa New 茄子视频app官网become more resilient in dealing with natural hazards such as major earthquakes and landslides, says a retiring Canterbury academic.

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茄子视频app官网 Emeritus Professor Jarg Pettinga is retiring after more than four decades spent researching seismic and landslide hazards.

Emeritus Professor Jarg Pettinga, who has spent four decades researching seismic and landslide hazards, is stepping down after 43 years in the Department of Geological Sciences at Te Whare W膩nanga o Waitaha | 茄子视频app官网 (UC), including 15 years as a professor.

He says the range of new ground surface technologies now available to researchers has been the most dramatic change during his career, which has seen him make significant contributions to the fields of plate tectonics, earthquake geology and landscape evolution.

SDG 11 Sustainable Development Goal (SDG) 11 - Sustainable Cities and Communities.

鈥淭he most exciting developments have been around the technologies now available to capture landforms in high detail and with tremendous accuracy, such as the imagery provided by airborne LiDAR survey data and satellites. There鈥檚 so much more information available that we鈥檙e able to make use of to develop models and provide in-depth understanding of geological evolution and landform changes. These are immensely powerful tools.

鈥淪imilarly, in the marine environment, we鈥檙e now able to survey and obtain high resolution maps of the seafloor and the geology beneath, so we鈥檙e much more advanced in terms of the detail that we can observe and interpret. That has provided crucial new research听听 documenting offshore earthquake activity and the active seabed process around New Zealand.听 These data are a vital addition to underpinning our national seismic hazard modelling and determining the tsunami hazard.鈥澨

During his distinguished career, Emeritus Professor Pettinga has provided expert advice to regional and national groups. He shared his seismic knowledge following the devastating Canterbury earthquake sequence, and again in 2016 following the Kaikoura quake, and gave evidence at the Canterbury Earthquakes Royal Commission of inquiry.

鈥淥ne of my main career highlights has been my contribution to a better understanding of seismic hazards in the Canterbury region,鈥 he says. 鈥淚t鈥檚 research that I worked on in collaboration with PhD and master鈥檚 research students, and academic and technical staff at UC and other external organisations, especially NIWA and GNS Science.鈥

He also feels positive about his early career research documenting the development of the Hikurangi Subduction Margin located along the eastern North Island of New Zealand, a tectonic plate-boundary structure.

鈥淚t was one of the first formally published detailed examples of how a plate boundary subduction zone evolves. It鈥檚 still very topical now because it鈥檚 a region most likely to generate a very large earthquake or mega-quake,鈥 he says.

Emeritus Professor Pettinga chaired the Gateway Antarctica Advisory Board for seven years, and also chaired the Royal Society Te Ap膩rangi Marsden Fund Earth Science and Astronomy Panel for six years. He has been recognised with awards and honours throughout his career, including the prestigious Hamilton Award of the Royal Society of NZ in 1984, a UC Teaching Award in 2005 and the Antarctic Service Medal from the National Science Foundation in the United States in 2005.

He spent a year at the University of California, Santa Barbara in 1986 as a Fullbright Visiting Research Scholar undertaking a research mapping project in the Southern California desert region.

During his time at UC, he has held various senior roles alongside his research and teaching duties, including Acting Deputy Vice-Chancellor in 2012 and 2016, Acting Pro-Vice-Chancellor for the College of Science in 2009 and College of Arts 2009-2010, Acting Director of UC鈥檚 Research and Innovation Office in 2020, and Director of the Natural Hazards Research Centre. He also served as Head of the Department of Geological Sciences from 2007-2016.

Emeritus Professor is an honorary title awarded by the UC Council to retiring, long-serving professors who have made an outstanding contribution in their field. Emeritus Professor Pettinga鈥檚 achievement will be celebrated at an upcoming UC event.


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