Statistics New Zealand

Rapid Rupture Mapping of Potential Tsunamigenic Earthquakes in the Southwest Pacific Using Regional Seismic Arrays

Abstract Rapid spatial characterization of rupture in tsunamigenic earthquakes (Mw≥7.5) is critical for improving tsunami early warning capabilities, particularly for sparsely instrumented regions. We investigate how regional array seismology can be optimized for such settings by...

Investigation of the relationship between oxygen bubble behaviour and local thermal stress in PEMWE

Understanding the interplay between gas bubble evolution and thermal behaviour is vital to improving the efficiency and durability of Proton Exchange Membrane Water Electrolysers (PEMWEs). This study presents a real-time visualisation approach that combines synchronised microscop...

Changing Antecedent Land‐Surface Conditions Can Amplify Future Heat Extremes Across New Zealand

Abstract Extreme heat in New Zealand is projected to intensify faster than mean warming, but the mechanisms remain unclear. Using dynamically downscaled CMIP6 projections, we investigate whether land–surface moisture constraints contributes to future heat‐extreme intensification...

A machine learning approach to estimating nitrate-nitrogen concentrations in shallow groundwater across New Zealand

Nitrate contamination of shallow groundwater is a concern for drinking water safety and ecosystem health globally, yet national-scale prediction techniques remain limited. Here, we describe the development and evaluation of an ensemble machine learning framework to estimate media...

Modelling evacuation mode choice behaviour under an imminent threat of volcanic eruption using logistic regression and machine learning methods

Abstract With the increasing frequency of natural hazards worldwide, developing effective evacuation strategies is crucial to reducing their adverse impacts. This study examines the determinants of evacuation mode choice in the event of an imminent volcanic eruption in Auckland,...

Eight years of nationwide routine wastewater surveillance in New Zealand: Demonstrating its complementary role in public health policy

BACKGROUND AND AIMS: Monitoring illicit drug consumption is challenging due to its hidden and stigmatised nature. However, objective consumption data are essential for a wide range of stakeholders, including policy makers. Wastewater-based epidemiology (WBE) offers population-lev...

Effectiveness of the recruitment strategies used in the Baby-Feed Online Trial, a trial to test an educational web application for caregivers to prevent excessive weight gain in infants

Background/aims: To analyze the effectiveness of recruitment methods in the Baby-Feed Online Trial. Methods: This randomized clinical trial evaluated an online educational intervention for caregivers to monitor and improve their infants’ diets and growth. Caregivers of infants ag...