New Zealand’s Changing Coastline
Te Hurihanga o te Takutai Moana o Aotearoa
Coastal Hazards
Ngā Mōrearea Takutai
Programme Leader(s)
The University of Auckland
Shari Gallop
Ngāti Maru, Te Rarawa
University of Waikato
The University of Auckland
Vision
Aotearoa New Zealand has the data, knowledge, policies and guidance necessary to inform a resilient coastal hazard management strategy for the next 100 years and beyond.
Programme description
Incremental sea-level rise, erosion and more frequent coastal flooding will fundamentally re-shape our coastlines and re-define Aotearoa New Zealand’s future coastal hazard and risk. There has been limited information available to communities and decision-makers about likely future changes to Aotearoa New Zealand’s coastlines, and how coastal communities might take proactive steps to keep themselves safe from harm.
Working closely with stakeholders in central and local government, as well as local communities, hapū and iwi and end-users, we developed and implemented new state-of-the-art, nationally consistent approaches to understanding and adapting to Aotearoa New Zealand’s current and future coastal hazards and risks.
To achieve this, our research team:
- created a national coastal-change database to understand the nature and causes of past changes and maintain a record of ongoing changes to help anticipate the future
- gained a deeper understanding of flooding hazard and risk in our coastal areas and estuaries, and how these risks are affected by human and climate factors
- developed adaptation guidance and tools to enable communities and decision-makers to plan proactively for successful coastal adaptation.
Our goal is to enable a resilient coastal strategy for Aotearoa New Zealand.
Wawata
Kei a Aotearoa ngā raraunga, te mātauranga, ngā kaupapahere me ngā tohutohu e whai wāhi ai hei mōhiohio whakauru ki tētahi rautaki manawaroa hei whakahaere mōrearea takutai mō te 100 tau i muri ake, neke atu rānei.
Whakaahuatanga papatono
Mā te kauneketanga o te pikinga o te pae moana, te ngāhorohoro me te auau haere o ngā waipuke takutai e waihanga anō i te āhua o ā mātou takutai me te tautuhi anō i te mōrearea me te tūraru takutai o Aotearoa ā tōna wā. He ruarua ngā mōhiohio mā ngā hapori me ngā kaiwhakatau mō ngā panonitanga ka puta pea ā tōna wā ki ngā takutai o Aotearoa, ā, me pēhea hoki ngā hapori e noho ana ki tai e ngana kia noho haumaru ai rātou.
E mahi ngātahi ana mātou ki te hunga whaipānga o te kāwanatanga ā-motu, ā-rohe hoki, me ngā hapori ā-rohe, ngā hapū, ngā iwi me ngā kaiwhakamahi-mutunga ki te whakawhanake me te whakahaere i ngā kaupapa hou rawa, taurite i te motu, kia mārama ai, kia urutau ai ki ngā mōrearea me ngā tūraru takutai o Aotearoa onāianei, o anamata hoki.
Hei whakatutuki i tēnei, kei te pēnei tō mātou rōpū rangahau
- he hanga i tētahi pātengi raraunga mō ngā panonitanga-takutai ā-motu kia mārama ki te āhua me ngā take o ngā panonitanga o mua me te pupuri i tētahi pūkete mō ngā panonitanga e haere tonu ana hei āwhina ki te matapae i te anamata
- te whiwhi i te māramatanga hohonu ake ki ngā mōrearea me ngā tūraru waipuke ki ā mātou wāhi takutai, wahapū hoki, me te pānga o te tangata me ngā āhuatanga āhuarangi ki ēnei tūraru
- he whakawhanake aratohu urutaunga me ngā taputapu kia āhei ai ngā hapori me ngā kaiwhakatau ki te kōkiri i ngā mahi whakamahere kia angitū ai ngā urutaunga takutai.
Ko tō mātou whāinga ko te whakaara rautaki takutai manawaroa mō Aotearoa.
Questions we’re answering
1
How is Aotearoa New Zealand’s coastline changing?
Phase 22
What are our current and future coastal estuarine flooding hazards and risks?
Phase 23
How can Aotearoa New Zealand proactively prepare for coastal changes?
Research Team
Mark Dickson
The University of Auckland
Emma Ryan
The University of Auckland
Shari Gallop
Ngāti Maru, Te Rarawa
University of Waikato
Murray Ford
The University of Auckland
Karin Bryan
University of Waikato
Scott Stephens
NIWA
Judy Lawrence
Te Herenga Waka Victoria University of Wellington
Paula Blackett
NIWA
Lara Clarke
GNS Science
Sylvia Allan
Allan Planning and Research Ltd
Adolf Stroombergen
Infometrics
Mike Hilton
University of Otago
Ryan Paulik
NIWA
Darren Ngaru King
Ngāti Raukawa
NIWA
Giovanni Coco
The University of Auckland
Megan Tuck
The University of Auckland
Andrew Allison
NIWA
Akuhata Bailey-Winiata
Ngāti Whakaue, Tūhourangi, Ngāti Tutetawha, Nāti Tawhaki
University of Waikato
PhD Student
Coastal Hazards
Latest Resource Outputs
Data Set
Pre- and Post-Gabrielle coastline mapping data
View digitised coastlines from our Changing Shoreline project team, based on aerial photographs and high resolution satellite imagery taken prior to Cyclone Gabrielle, and after.
Article
Identifying coastal land cover types using a hybrid approach of optical and SAR satellite data in the Auckland region
Validating a hybrid rule-based and machine learning methodology developed in Google Earth Engine that utilises freely available satellite data.
Article
Formulating a 100-year strategy for managing coastal hazard risk in a changing climate: Lessons learned from Hawke’s Bay, New Zealand
A thematic analysis of key themes and lessons.
Article
Assessing the use of satellite derived bathymetry in estuarine storm surge models – study case: Tauranga Harbour
Satellite-derived bathymetry techniques are accurate enough to use in hydrodynamic modelling, especially in remote areas, where the assessment of flooding risk is more difficult.
Article
Inadequacy Revealed and the Transition to Adaptation as Risk Management in New Zealand
How practice under the existing planning framework has exposed people and assets to greater risk, and how current law and practice can support more effective climate risk management.
Article
Our Changing Coastline
Researchers from our Coastal Programme contributed an article to Build Magazine.