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Audio, Radio New Zealand

To Canterbury now where the recent earthquakes have reignited interest in civil defence. Katy Gosset drops in on a major training exercise where there's no shortage of fresh blood.

Videos, UC QuakeStudies

A video about the Police Special Tactics Group using an abandoned house in the Christchurch residential red zone to train. The video includes an interview with Inspector Steve Mather, Special Tactics Group Commander, about the training exercise.

Audio, Radio New Zealand

One in Five is in Christchurch to meet elderly residents in some of the areas worst hit by the earthquakes. In these suburbs, a series of exercise classes is providing a lifeline for locals who are increasingly confined to their immediate areas. The classes, which are run by Therapy Professionals for Arthritis New Zealand, offer improved mobility to those living with the condition but also companionship and support in a stressful time. Those taking part talked to Katy Gosset about aging with a disability and coping with life after the earthquakes.

Research papers, Lincoln University

This report forms part of a research project examining rural community resilience to natural hazard events, with a particular focus on transient population groups. A preliminary desktop and scoping exercise was undertaken to examine nine communities affected by the Kaikoura earthquake and to identify the variety of transient population groups that are commonly (and increasingly) found in rural New Zealand (see Wilson & Simmons, 2017). From this, four case study communities – Blenheim, Kaikoura, Waiau and St Arnaud – were selected to represent a range of settlement types. These communities varied in respect of social, economic and geographic features, including the presence of particular transient population groups, and earthquake impact. While the 2016 Kaikoura earthquake provided a natural hazard event on which to focus the research, the research interest was in long-term (and broad) community resilience, rather than short-term (and specific) response and recovery actions which occurred post-earthquake.

Research papers, Lincoln University

New Zealand is one of the most highly urbanised countries in the world with well over 87 per cent of us living in 138 recognised urban centres, yet the number of people residing in inner city areas is proportionally very low. Householders have been exercising their preference for suburban or rural areas by opting for low density suburban environments. It is widely agreed that productivity and sustainability increase when people aggregate in the inner city, however there is a perceived trade-off between the density and liveability of an area. Achieving liveability in the inner city is concerned with reducing the pressures which emerge from higher population densities. Promoting inclusive societies, revitalising underutilised cityscapes, ensuring accessibility and fostering sense of place, are all elements essential to achieving liveable communities. The rebuild following the 2010 and 2011 Canterbury earthquakes provides Christchurch with an opportunity to shape a more environmentally sustainable, economically vibrant and liveable city. This research involves undertaking a case study of current inner city liveability measures and those provided for through the rebuild. A cross-case analysis with two of the world’s most liveable cities, Melbourne and Vancouver, exposes Christchurch’s potential shortcomings and reveals practical measures the city could implement in order to promote liveability.

Research papers, University of Canterbury Library

© 2017 The Royal Society of New Zealand. This paper discusses simulated ground motion intensity, and its underlying modelling assumptions, for great earthquakes on the Alpine Fault. The simulations utilise the latest understanding of wave propagation physics, kinematic earthquake rupture descriptions and the three-dimensional nature of the Earth's crust in the South Island of New Zealand. The effect of hypocentre location is explicitly examined, which is found to lead to significant differences in ground motion intensities (quantified in the form of peak ground velocity, PGV) over the northern half and southwest of the South Island. Comparison with previously adopted empirical ground motion models also illustrates that the simulations, which explicitly model rupture directivity and basin-generated surface waves, lead to notably larger PGV amplitudes than the empirical predictions in the northern half of the South Island and Canterbury. The simulations performed in this paper have been adopted, as one possible ground motion prediction, in the ‘Project AF8’ Civil Defence Emergency Management exercise scenario. The similarity of the modelled ground motion features with those observed in recent worldwide earthquakes as well as similar simulations in other regions, and the notably higher simulated amplitudes than those from empirical predictions, may warrant a re-examination of regional impact assessments for major Alpine Fault earthquakes.

Research papers, University of Canterbury Library

This article presents a quantitative case study on the site amplification effect observed at Heathcote Valley, New Zealand, during the 2010-2011 Canterbury earthquake sequence for 10 events that produced notable ground acceleration amplitudes up to 1.4g and 2.2g in the horizontal and vertical directions, respectively. We performed finite element analyses of the dynamic response of the valley, accounting for the realistic basin geometry and the soil non-linear response. The site-specific simulations performed significantly better than both empirical ground motion models and physics based regional-scale ground motion simulations (which empirically accounts for the site effects), reducing the spectral acceleration prediction bias by a factor of two in short vibration periods. However, our validation exercise demonstrated that it was necessary to quantify the level of uncertainty in the estimated bedrock motion using multiple recorded events, to understand how much the simplistic model can over- or under-estimate the ground motion intensities. Inferences from the analyses suggest that the Rayleigh waves generated near the basin edge contributed significantly to the observed high frequency (f>3Hz) amplification, in addition to the amplification caused by the strong soil-rock impedance contrast at the site fundamental frequency. Models with and without considering soil non-linear response illustrate, as expected, that the linear elastic assumption severely overestimates ground motions in high frequencies for strong earthquakes, especially when the contribution of basin edge-generated Rayleigh waves becomes significant. Our analyses also demonstrate that the effect of pressure-dependent soil velocities on the high frequency ground motions is as significant as the amplification caused by the basin edge-generated Rayleigh waves.

Audio, Radio New Zealand

TRACEY MARTIN to the Minister responsible for Novopay: Does he stand by his statement of 11 February 2014, "education payroll is the most complex in New Zealand and more work remains to be done to simplify the business processes to ensure it runs as smoothly as possible each year"? Hon DAVID CUNLIFFE to the Prime Minister: Does he stand by his statement that "the true builders of that future are the millions of New Zealanders working in the homes, the businesses, the industries of our country"? MAGGIE BARRY to the Minister of Finance: What progress is the Government making with its share offer programme, which is freeing up money for reinvestment in new public assets without having to increase Government debt? ANDREW LITTLE to the Attorney-General: Will he release all correspondence between the Christchurch Crown Solicitor or any other solicitor acting for the Ministry of Business, Innovation and Employment, and counsel for Peter Whittall on the decision not to proceed with the prosecution of Mr Whittall under the Health and Safety in Employment Act 1992 relating to conditions at the Pike River Mine that lead to the deaths of 29 miners; if not, why not? KEVIN HAGUE to the Minister of Health: When were Ministry of Health officials first informed that the dispute between the Southern District Health Board and South Link Health involved allegations of the misuse of public funding, and when were they first informed that this alleged misuse was suspected to involve elements that could be fraud? Dr CAM CALDER to the Minister for Tertiary Education, Skills and Employment: What announcements has the Government made on the Tertiary Education Strategy for New Zealand? Hon RUTH DYSON to the Minister responsible for the Earthquake Commission: Does he stand by his statement made yesterday in the House with regard to Canterbury Labour Members of Parliament that they "have made no more than five requests for assistance through the Earthquake Commission"; if not, when will he be correcting his statement and apologising? MARK MITCHELL to the Minister for Communications and Information Technology: How is the Government's Information and Communication Technology programme improving New Zealanders' access to improved technology and better connectivity? GRANT ROBERTSON to the Minister of Justice: On what date did she receive an invitation to visit the Shanghai office of Oravida Ltd during her Ministerial visit to China in October 2013, and what actions did she take to ensure this visit met her obligations under the Cabinet Manual? CATHERINE DELAHUNTY to the Associate Minister of Education: Did the communities in Christchurch, Auckland and Queenstown, where four schools are to be built using a public-private partnership (PPP) model, ask the Government for private sector management of their school buildings? PAUL FOSTER-BELL to the Minister of Health: What investment is the Government making in improving nutrition and exercise for pre-schoolers? JOANNE HAYES to the Minister of Corrections: What steps has the Government taken to improve access to alcohol and drug treatment for prisoners?

Research papers, Lincoln University

Knowledge of past climate variability is essential for understanding present and future climate trends. This study used Halocarpus biformis (pink pine) ring-width chronologies to investigate palaeotemperature history in Westland, New Zealand. The ensuing reconstruction is among the longest palaeoseries produced for New Zealand to date. It is in good agreement with other tree-ring-based records, and with instrumental (both local and hemispheric) data. Thirteen pink pine chronologies were developed. Ring-width measurements were detrended using the Regional Curve Standardisation method to retain as much low-frequency variance as possible. Crossdating revealed the existence of a strong common signal among trees. Inter-site comparison indicated that a common control mechanism affected tree growth not only within sites, but also across sites. To determine whether climate was the main factor that controlled the growth of pink pine in Westland, correlation and response function analyses were employed. Temperature, precipitation and the Southern Oscillation Index were tested for their relationship with tree growth. Mean monthly temperature was identified as the primary growth-limiting factor. Chronologies were positively correlated with temperature over an extended period (5-17 months), and climate response modelling showed that temperature explained 11-60% variance in the tree-ring data. The highest and most stable correlations occurred between tree growth and summer (January-March) temperatures. Tree-ring data from the six sites that contained the strongest temperature signal were combined, and the Westland Regional Chronology (WRC) was developed. The WRC was then used to reconstruct January-March temperatures back to A.D. 1480. The calibration model explained 43% of the variance in temperature, and all calibration and verification tests were passed at high levels of significance. The reconstruction showed that temperatures in Westland have been following a positive trend over the last 520 years. The coolest 25-year period was 1542-1566, while temperatures reached their maximum in 1966-1990. Spectral analysis of the Westland palaeotemperature record revealed cycles at periods of about 3, 5-6, 11, 14, 22, 45 and 125 years. This study also confirmed that climate response is species-dependent. A separate exercise, which compared two species from the same site, demonstrated that while pink pine's growth was mainly influenced by summer temperatures, Libocedrus bidwillii was affected by conditions at the beginning of the growing season. However, the temperature signal in Westland's Libocedrus bidwillii was insufficient to produce a reliable reconstruction. It might be because the climate signal in this species was obscured by disturbances, as was shown in the final section of this project. Frequent growth releases and suppressions implied that Libocedrus bidwillii integrated both major (Alpine Fault earthquakes) and minor (windthrow) disturbances in its ring widths. Pink pine, on the other hand, was not sensitive to disturbance, and was therefore a better indicator of palaeotemperatures in Westland. This research has strengthened the New Zealand network of chronology sites, and confirmed that pink pine has great dendroclimatic value. The last 520 years of temperature fluctuations were reconstructed with a high degree of fidelity - the model developed in this thesis is currently the most accurate estimate of a temperature-growth relationship in the country.

Research papers, University of Canterbury Library

Under the framework of New Public Management, the government has decentralised the responsibility for Disaster Risk Management (DRM) to regional, local, and community levels in New Zealand. This decentralisation serves political agendas related to resource allocation and is supported by empirical evidence suggesting that involving communities in DRM during recovery decision-making enhances disaster resilience. Extensive evidence indicates that community participation in DRM, especially during recovery decision-making, can significantly improve recovery outcomes at the community level. However, there has been limited research into whether the legal framework in New Zealand effectively facilitates meaningful public engagement to empower the public in influencing disaster recovery decisions. To address this gap in the literature, this thesis aims to explore the extent to which legislative and governance arrangements transfer the responsibility, liability, and costs of managing disaster risks to local levels without enabling meaningful public contribution to and influence on recovery decisions affecting them. Situated within Public Law and Disaster Risk and Resilience disciplines and using a case study of Greater Christchurch, New Zealand, this interdisciplinary thesis examines both common law and statutory provisions in the legal framework impacting public engagement before and during recovery from the Canterbury Earthquake Sequence. In particular, this thesis assesses how legislative, and governance frameworks influenced communities’ ability to influence recovery decision-making following the 2010-2011 Canterbury Earthquake Sequence (CES). This thesis shows that before the CES, the New Zealand public engagement system closely adhered to the common law principle of the ‘duty to consult’, which remains the current legal standard. This principle required decision-makers to use the 'public notice and comment' approach as a minimum, limiting meaningful community participation in decision-making. After the earthquakes, reliance on this traditional approach caused growing frustration and division locally, as the public struggled to effectively engage in and influence recovery decisions, resulting in new community activism. The Canterbury Earthquake Recovery Act (CER Act), introduced following the Christchurch Earthquake, included innovative provisions on public engagement. However, for various reasons, this Act appeared to have minimal impact on meaningful public engagement in recovery decision-making, which continued to align with the broader, existing public engagement system and associated norms. The empirical findings indicate that despite the novel legislative language, the traditional public engagement framework in New Zealand constrained effective engagement, leading to a broader erosion of trust between the public and the government. This was largely attributed to the default ‘public notice and comment’ approach at the local government level, with inadequate mechanisms for community engagement in central government decision-making shaping the expectations of recovery decision-makers still operating within this framework. Notable departures from this traditional approach were evident in the practices of the Waimakariri District Council and Christchurch City Council. Particularly noteworthy was the ‘Share an Idea’ public engagement campaign. Unlike conventional processes, it did not commence with a near-final or draft document. Instead, it utilised participatory mechanisms that fostered meaningful dialogue, enabling the public to significantly shape the content of the draft Christchurch Central Recovery Plan. The initial success of such participatory engagement underscores its potential effectiveness throughout the entire recovery planning process, an option that was not exercised by the central government. In conclusion, this thesis argues that New Zealand should move beyond the entrenched ‘public notice and comment’ approach and adopt more open and inclusive public participation mechanisms. It contends that supplementing this approach with proactive participatory methods before disasters could yield favorable outcomes during disaster recovery, thereby ensuring meaningful public involvement in future decisions that affect communities.