Helen Bostock
Helen Clare Bostock, is an oceanographer researching past, present and future conditions in the Southern Ocean. In 2011 she led a research voyage on board the RV Tangaroa to the Solander Trough region of the Tasman Sea. Two years later she was deputy voyage leader for an expedition to the Mertz Polynya, Antarctica. In 2016 she was awarded the McKay Hammer, for her combined research achievements between 2013 and 2016.
Early life
Bostock was born in Perth, Australia and grew up there, Nigeria, the Netherlands, Oman, Scotland, England, and New Zealand. She went to high school in Abbotsholme School in England.Education and early career
Bostock was awarded her PhD by the Australian National University, Australia. Her work focused on geochemical tracing of the intermediate and surface waters in the Tasman Sea and was supervised by Bradley Opdyke and John Marshall. Prior to that she completed a MSc and BSc at Jesus College, University of Cambridge, UK.Her early career was as a researcher at Geoscience Australia. For a time she also worked as the coordinator for the Australian ODP/IODP Office, coordinating the activities and developing proposals on behalf of the marine geoscience community in Australia in the transition between the end of the Ocean Drilling Program and joining the Integrated Ocean Drilling Program. She then joined the New Zealand National Institute of Water and Atmospheric Research. In 2019 she took up an Associate Professorship at the University of Queensland where she is presently Professor and Deputy Head of the School of the Environment.
File:RV Tangaroa.jpg|thumb|The RV Tangaroa is New Zealand's largest oceanographic research vessel – Bostock led or co-led several voyages by this ship into the Southern Ocean during her time working with NIWA.
Science and impact
Bostock's primary research focus is on the paleoceanography and oceanography of the Southwest Pacific and Southern Ocean using sedimentology, microfossils, isotopes and geochemical tracers to understand present and past changes in ocean circulation and their influence on climate. She also works on sediment transport processes and sources, and multidisciplinary topics such as Ocean Acidification, climate change, the onset of the Anthropocene and paleo-seismicity.The R.V. Tangaroa voyage that she led to the Solander Trough region, named after Daniel Solander, directly south of the south-west corner of New Zealand was part of a sequence of voyages seeking to characterise the present and past configuration and mechanics controlling the Subtropical front which is a significant oceanographic feature found in both hemispheres but with the southern front extending more or less continually around the globe.
She was deputy voyage leader for a 2013 Tangaroa expedition to the Mertz polynya region in East Antarctica. The polynya was consistently found in the lee of the Mertz Glacier Tongue until its break-away in 2010. This large floating glacier was named after Xavier Mertz who lost his life in the region in 1913 on the Australasian Antarctic Expedition led by Douglas Mawson. The voyage sought to determine changes brought about by the glacier calving.
She has researched and communicated on the concept of the Anthropocene. A major conclusion of the work was that, in the longer-term future, tectonic and volcanic processes are likely to have a stronger impact on New Zealand, as a landmass, than foreseeable future climate change.
In 2012 she was the scientist aboard HMNZS Canterbury on a voyage to Raoul Island in the Kermadec Ridge region to the northeast of New Zealand. Along with NZ Department of Conservation staff, a science team sent by Pew Environment Group, and a group of students on a Sir Peter Blake Expedition. They left New Zealand in August, a day after both Mount Tongariro and Whakaari / White Island erupted, which meant that the volcanologist who was scheduled to be on board the ship remained in New Zealand. Very early into the voyage they encountered massive pumice rafts caused by the 2012 Kermadec Islands eruption. This was so large that it was visible from trans-Pacific aircraft.
In 2023 she was co-voyage leader on an R.V. Investigator research voyage to the Cape Darnley region of East Antarctica. The seven-week long voyage focused on sea floor mapping, identifying bottom water sources, benthic ecosystem and sediment sampling as well as hydrography.