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Resilience of deep-sea benthic fauna to sedimentation from seabed mining

A combination of field surveys and on-site observations are being used along with laboratory-based experiments to determine the effects of seabed disturbance on benthic life.
What does NIWA actually do?

What does NIWA actually do?

What does NIWA actually do? The answer might surprise you.

Default Energy Solutions Gallery

Energy sector

NIWA provides a wide range of research and consultancy services to the energy sector, including resource assessment, forecasting, environmental impact assessments and mitigation.

Our World

Our World

Compiled by NIWA from the United Nations report "Keeping Track of Our Changing Environment: From Rio to Rio+20 (1992-2012)".

Full report at http://www.unep.org/geo/pdfs/keeping_track.pdf [4.8 MB]. 

NZEDD - help

The New Zealand Energy Demand Database contains information on all of New Zealand's energy demand, including a scenario analysis tool. The database includes historical data as well as projected future energy demand for several different scenarios. 

This help page will be updated in response to users enquiries. Questions or suggestions can be sent to Energyscape enquiries, contact details below.

EnergyScape

Pig power

Right now, millions of cubic metres of biogas either gets flared off, or wafts downwind to annoy the neighbours. But that gas could be generating electricity, powering vehicles and balancing our trade deficit at the same time, finds Dave Hansford.

Pig power science yields good results in NZ and overseas

27 February 2012

An innovative biogas system, developed at NIWA Hamilton, has been embraced by the Australian pork industry. It provides an alternative electricity and heating source.

Biogas from pig farms

NIWA, in collaboration with industry partners, has demonstrated that Covered Anaerobic Pond (CAP) systems for the collection and use of biogas from piggery waste can make good financial sense, and improve the environmental impact of livestock farming substantially.

Craig Stevens on Cook Strait tidal energy

Craig Stevens on Cook Strait tidal energy

Dr Craig Stevens from NIWA discusses the potential for turbines to extract tidal energy from New Zealand's Cook Strait. 

Current conversion - tidal and wave energy in New Zealand

Current conversion - tidal and wave energy in New Zealand

Technology for extracting energy from wave and tidal currents is now a viable alternative to traditional power generation methods.

Energy Update 01, October 2010

Energy - Research Projects

Energy - Publications

Energy - Common Questions

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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.

Starflow - Unidata 6526

This ultrasonic Doppler instrument is a compact, easy to use system for measuring water flow in rivers, channels and pipes.

Water Level Encoder - Unidata 6541

Uses a float and counterweight system to convert water level into an electronic output that can be read by a datalogger. Accurate to within a millimetre over a wide range.

Prologger - Unidata 7001B

This has 16 analog inputs with an accuracy of better than 0.1% of full scale. You can configure inputs as single ended or differential and select from four input signal ranges.

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