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Tuna - habitat
Tuna are found in all sorts of habitats (places), including coastal estuaries, lakes, wetlands, rivers, mountain streams and even alpine tarns. -
Estimating design wind speeds in complex terrain
Research ProjectThe current method for calculating wind speed-up is inadequate, and can grossly under-predict correct design wind speeds in NZ's complex terrain. -
Resources for teachers
NIWA's educational resources and scientific data are tools for young people to learn about science. -
NZ Drought indicator products and information
Drought is a common feature of New Zealand's climate. On average, every year or two somewhere in New Zealand experiences a drought. -
Sea level observations (near real-time)
ServiceThis system combines daily sea-level data from NIWA, regional councils, port companies, Antarctica NZ, Bureau of Meteorology and territorial authorities. -
Algal monitoring service
ServiceBlooms of hazardous cyanobacteria (blue-green algae) in rivers, lakes and reservoirs can cause problems for both animal and human health. -
What is the greenhouse effect?
Education ResourceThe greenhouse effect is a warming of the earth's surface and lower atmosphere caused by substances which let the sun's energy through to the ground but impede the passage of energy from the earth back into space. -
New Zealand's Marine Realm
News article06 June 2017NIWA has transformed 1.5 million square kilometres of data into the most accurate and detailed map yet of the land underneath the sea around New Zealand. -
Seafood sector
NIWA's seafood sector work comprises our fish, fisheries and aquaculture research and consultancy. -
Loss of riparian vegetation
Plants and trees along the water margins and banks are called riparian vegetation.