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Hannah Walker
Introduction Guided by the UN-SDGs and focused on generating innovative geospatial research, the Geospatial Research Intitute Toi Hangarau is committed to developing, implementing, and facilitating the use and access to geospatial technologies for multiple sectors of New Zealand society. We partner with various groups, including...
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Hannah Walker
Abstract Flood inundation is a frequent, widespread, and impactful hazard, which regularly causes damage to housing and infrastructure along with disruption to communities and businesses. Further, flood risk is expected to increase in future, due to increased storminess caused by climate change, and rapid urbanisation....
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Hannah Walker
Abstract In a unique partnership, the Rongowai (“sensing water” in te reo Māori) airborne remote sensing mission comprises of a next-generation Global Navigation Satellite System Reflectometry (GNSS-R) receiver (NGRx) mounted on a domestic Air New Zealand Q300 aircraft. The sensor captures reflected GNSS “signals of...
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Hannah Walker
Project summary Alongside the uncertainty research, the GRI is working with NIWA to help produce consistent, open-source methodology for the national flood risk assessments. The methods developed are guided by a number of physically-based flood inundation modelling efforts that have been attempted internationally both...
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Hannah Walker
Project summary Flooding is one of New Zealand’s most damaging hazards. This research programme is supporting the changes that are needed to our flood risk management. The overall aim of the programme is to provide the first, high-resolution flood hazard assessment for every catchment...
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Hannah Walker
Rongowai Project summary The GRI is playing a leading role within the Rongowai (“sensing water”) mission, that aims to build a detailed picture of the complex patterns of water across New Zealand’s complex environment. In a novel partnership with a commercial airline, we have...
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Hannah Walker
Project summary In the past, there has been a disconnect and little collaboration between the people and organizations doing work on the plant pathogens that cause myrtle rust and kauri dieback. This has stymied progress in the management of these plant pathogens and diseases,...
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Hannah Walker
Project summary The Eco-index programme is funded through the New Zealand’s National Science Challenge “New Zealand’s Biological Heritage - Ngā Koiora Tuku Iho”. Through this initiative, the Eco-index programme has set a long-term National Biodiversity Vision ‘protected, restored and connected by 2121’. The Protect-Tiaki...
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Hannah Walker
Project summary This nationwide geospatial study from Aotearoa New Zealand describes the frequency and spatial patterning of residential mobility and examines the interplay between patterns of residential mobility and the environments in which adults reside. Data from the Integrated Data Infrastructure (n =...
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Hannah Walker
Project summary Accounting for the co-occurrence of multiple environmental influences is a more accurate reflection of population exposure than considering isolated influences, aiding in understanding the complex interactions between environments, behaviour and health. Healthy Location Index describes how environmental ‘goods’ such as green spaces...
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