Coasts

Latest news

New study to combat harm caused by anchoring

Media Release

16 April 2024

Ship anchors may cause extensive and long-lasting damage to the seafloor, according to new NIWA research.

Higher and drier – the cost of raising homes

Media Release

30 August 2023

New research shows that in some cases, lifting houses may be a cost-effective way to reduce intermittent flooding risk.

Identification of significant ecological areas for the Otago coastal marine area

12 June 2023

Long-term protection of Otago’s coastal habitats took a step closer to reality after more than 100 marine Significant Ecological Areas (SEA) were identified as part of a research project led by NIWA.

New maps reveal places at risk from sea-level rise

Media Release

25 May 2023

New maps from NIWA and the Deep South National Science Challenge show areas across Aotearoa New Zealand that could be inundated by extreme coastal flooding.

Latest videos

Dive into the alien world of plankton in the Ross Sea

Plankton are the base of the oceans food web and are vital to our survival. But as our world changes will they be able to continue to play this essential role? Join us as we follow a group of NIWA scientists investigating various aspects of this question in the ocean around Antarctica.

Shifting Sands

Dr Joshu Mountjoy discusses NIWA's work in assessing the tsunami hazard just south of Kaikoura.

Find out more about this research.

Antarctic Coastal Marine Life in a Changing Climate

NIWA marine ecologist Dr Vonda Cummings discusses the likely effects of climate change on marine invertebrates living on the seafloor of the Ross Sea coast.

These organisms have evolved in a very stable environment and are adapted to an extremely narrow range of sea conditions. Relatively large increases in sea temperatures and acidity predicted by the end of this century may outstrip their ability to adapt. Laboratory experiments with common Antarctic shellfish suggest that predicted increases in ocean acidity may threaten shellfish populations.

Next Stop Antarctica

Our Far South is an expedition that aims to raise New Zealanders' awareness of the area south of Stewart Island. Gareth Morgan, Te Radar, scientists and 50 everyday Kiwis are onboard to learn and then share their experience. This is the first video produced by them, showing some of the highlights of the trip so far.

Shifting Sands

Dr Joshu Mountjoy discusses NIWA's work in assessing the tsunami hazard just south of Kaikoura.

Find out more about this research.

New Zealand Coastal Society Annual Conference: ‘Making Waves, 20 years and beyond’

14 November 2012

This week, New Zealand's leading coastal scientists, engineers and planners are attending the New Zealand Coastal Society 20th Annual Conference in Auckland. NIWA has many speakers presenting work at the conference.

NIWA’s Kaharoa sets sail to deploy robots across the Pacific Ocean

12 October 2012

NIWA research vessel Kaharoa will depart Wellington on Friday 12 October to deploy 120 Argo robotic instruments across the Pacific Ocean.

NIWA spies discover big birds take midwinter holidays

10 August 2012

Scientists have discovered that our big birds take long winter holidays overseas. The native Campbell Albatross take off to South Australia, and the Grey-headed Albatross goes further afield to an area 7,000 km from Campbell Island, in the Indian Ocean to the west of Australia.

Coastal and oceanic dispersal modelling

Understanding how material released into the ocean spreads is very important in the case of oil spills, sediment transport and the release of invasive species.

NZ Coast

NZ Coast is a collection of information about the New Zealand coastal environment and related hazards.

Clear as mud? Predicting water clarity and light penetration in estuaries

Fine sediment loads delivered to estuaries by rivers are higher today than prior to catchment deforestation due to increased soil erosion. The effects on water clarity, which then impact sensitive estuarine ecosystems, are significant.

Antarctic Coastal Marine Life in a Changing Climate

NIWA marine ecologist Dr Vonda Cummings discusses the likely effects of climate change on marine invertebrates living on the seafloor of the Ross Sea coast.

Next Stop Antarctica

Coasts Update 04, January 2012

Welcome to this special edition of Coasts Update, highlighting the Shallow Survey 2012.

Tide envelopes 2013

The range for high and low tides throughout the year.

Tide envelopes - previous years

The range for high and low tides throughout previous years.

Marine food webs

We need information on the food web structures of our marine ecosystems in order to manage the effects on the ecosystem of fishing, aquaculture and mining, as well as understanding the potential impacts of climate variability and change on our oceans.

Antarctica

NIWA scientists have worked for many years on Antarctic atmospheric processes and aquatic ecosystems.

EcoConnect Rena Feed

By using this site and the EcoConnect forecasts, you have read and agreed to the terms and conditions.

Weather - 2 Day Forecast

Ocean - 2 Day Forecast

Antarctic marine ecosystems

All aquatic ecosystems are strongly driven by physical processes, and nowhere is this more true than in Antarctica.

Antarctic marine ecosystems: news

Short articles and related news.

Antarctic marine ecosystems: introduction

All aquatic ecosystems are strongly driven by physical processes, and nowhere is this more true than in Antarctica.

Antarctic marine ecosystems: team

The science team includes plant and animal ecologists with expertise in a range of fields.

Electrical Conductivity Logger - Unidata 6536D

This measures and records the Electrical Conductivity (EC) and temperature of water.

Water Depth and Temperature Sensor - Unidata 6542B

This analog output sensor provides accurate long-term measurements of water depth and temperature in bores, drains and rivers.

The 6542B can measure water depths of up to 20 m and comes in five standard ranges: 1, 2, 5, 10 or 20 metres of water.

It has an accuracy of better than +/-1% of full scale and water level and temperature outputs are available as two separate analogue voltage outputs for connection to a data logger.