Opening windows and doors “one of the best ways” to remove Covid-19 from classroom air

Opening windows and doors “one of the best ways” to remove Covid-19 from classroom air

One of the best ways to reduce the likelihood of Covid-19 being transmitted in Aotearoa New Zealand classrooms is simply by opening doors and windows to create natural ventilation, say NIWA air quality experts.

Researchers produce stunning images

Researchers produce stunning images

Science takes NIWA employees to some stunning locations and leads to some special encounters, and every year the research organisation holds a photographic competition for staff working across its climate, oceans and freshwater platforms.

Coastal flooding likely to be main driver for adaptation

Coastal flooding likely to be main driver for adaptation

New NIWA-led research shows increasing flood risk is going to be what leads people to make changes to adapt to sea-level rise.“Rising seas are slowly causing a trifecta of impacts along coastlines in Aotearoa: increasingly frequent flooding, coastal erosion and even permanent inundation,” says Dr Scott Stephens, NIWA Chief Scientist for Coasts & Estuaries.

Retired scientist completes four-decade-long bibliographic work

Retired scientist completes four-decade-long bibliographic work

After 40 years of work, retired NIWA fisheries scientist Larry Paul has just published a 793-page bibliography of references to New Zealand marine fishes.For all that the bibliography covers, Larry says new species of fish are still being discovered throughout New Zealand’s waters.

It’s the warmest winter on record - again

It’s the warmest winter on record - again

NIWA meteorologist Nava Fedaeff also said there were 76 locations across the country that experienced a record or near-record warm winter.To put this winter’s record warmth in perspective, Ms Fedaeff delved into historic weather records and found that the last time New Zealand experienced a similar sequence of events was 50 years ago.

NIWA takes shot at golf course ratings

NIWA takes shot at golf course ratings

Dr Turner determined that using NIWA’s in-house, high resolution weather model, known as the NZCSM – New Zealand Convective Scale Model – could result in a fairer comparison across all golf courses.NZCSM mean wind speeds from the past four years were applied to the ratings calculation of almost 400 golf courses across the country.

NIWA calculates 1:200 year flood for parts of Canterbury

NIWA calculates 1:200 year flood for parts of Canterbury

Preliminary analysis by NIWA climate scientists has shown that the recent Canterbury rainfall was so extreme in some inland places that it could be expected to happen only once every 200 years.

The largest flood flow ever measured

The largest flood flow ever measured

Flood flows on the Buller River this month were the largest of any river in Aotearoa New Zealand in almost 100 years, NIWA measurements show.Meanwhile, a NIWA monitoring station on the Buller River at Te Kuha, about 10km upstream, was continuously recording water levels throughout the flood.

Study discovers microplastics in New Zealand’s seabed

Study discovers microplastics in New Zealand’s seabed

A pilot study carried out by NIWA and the University of Auckland has found microplastics in samples collected from the seafloor in the Marlborough Sounds.

New biodiversity memoir on the primnoid corals of New Zealand

New biodiversity memoir on the primnoid corals of New Zealand

A group of gorgonian octocorals that provide shelter for fish and invertebrates in the deep sea is the subject of NIWA’s latest Biodiversity Memoir.The NIWA Biodiversity Memoir series describe the taxonomy of New Zealand marine life, mostly for invertebrates such as sponges, corals, marine worms, molluscs, crustaceans and sea stars.

Seabirds spend nearly 40% of their time on high seas, study finds

Seabirds spend nearly 40% of their time on high seas, study finds

NIWA seabird ecologist Dr David Thompson says while seabird tracking research has not been carried out for all albatrosses and large petrels in New Zealand, we know that several species also spend time in Chile and Peru, in Japan and the USA in the north Pacific Ocean, while others visit Namibia and South Africa.

Shark numbers decline amid research gaps

Shark numbers decline amid research gaps

New research published in premier science journal Nature last week, with input from NIWA, showed the global population of oceanic sharks and rays has declined by more than 70 per cent in the past 50 years, with ongoing decline likely to lead to the extinction of some species.

NIWA heads to Antarctica for critical climate, ocean research

NIWA heads to Antarctica for critical climate, ocean research

The ship leaves Wellington and heads south with 20 science staff and 19 crew on board to learn more about key environmental and biological processes in the Ross Sea. Voyage leader and fisheries scientist Dr Richard O’Driscoll says this is the third in a series of voyages focused on providing baseline information about the Ross Sea Marine Protected Area (MPA) established in 2017.

Wet, warm, cold, dry – the holidays with a bit of everything

Wet, warm, cold, dry – the holidays with a bit of everything

But before heading off to the bach, beach, or boat, here’s five things you should know about regarding the 2020 Christmas climate, according to NIWA forecaster Ben Noll: The wet — although the Christmas/New Year period will feature plenty of dry weather, Christmas Eve will be an exception.

Fiordland air sharing secrets with scientist

Fiordland air sharing secrets with scientist

Dr Sperlich, and NIWA principal technician Ross Martin, will be collecting air samples as part of research into the native Fiordland forest to determine exactly how much carbon it is absorbing.

Marine heatwave conditions forming: NIWA

Marine heatwave conditions forming: NIWA

NIWA forecasters say a marine heatwave is forming around parts of New Zealand after sea surface temperatures (SSTs) warmed considerably last month.

Chance find leads to first look at coral larvae

Chance find leads to first look at coral larvae

Small orange flecks spotted floating around in a respiration chamber at a NIWA laboratory have led to a discovery about the spawning habits of a deep-sea stony coral in New Zealand waters.

Rare underwater find for NIWA photographer

Rare underwater find for NIWA photographer

NIWA’s Crispin Middleton, an accomplished underwater photographer, was swimming last November in the Poor Knights Marine Reserve when he spotted a football octopus inside a salp.2020 Special Award Winner - Crispin Middleton for 'Football octopus catches a ride inside a salp'.

Underwater robot getting close-up look at Kaikōura Canyon

Underwater robot getting close-up look at Kaikōura Canyon

Voyage leader and NIWA marine geologist Dr Joshu Mountjoy says this is the first time this technology has been used to survey submarine canyons in New Zealand waters and information collected will lead to new understanding relevant to many of the world’s continental margins.

Scientists conducting snapper research off North Island’s west coast

Scientists conducting snapper research off North Island’s west coast

People along the Kapiti and Wanganui coast may spot NIWA’s research vessel Kaharoa operating close to shore in the next few weeks as scientists carry out a survey of snapper, tarakihi, red gunard and John Dory.

NIWA research vessel returns home after epic voyage

NIWA research vessel returns home after epic voyage

John Brosnan waits on board the RV Kaharoa after returning to New Zealand from an epic 75-day voyage.NIWA has deployed more than 1100 Argo floats in the Pacific, Indian and Southern Ocean over 22 voyages since 2004, more than any other individual vessel.

How to be hands-off in a hands-on job

How to be hands-off in a hands-on job

With COVID-19 having put a stop to all Pacific travel for now, NIWA field staff have had to work out how to carry out their jobs without actually being there, making mastering the art of delivering training and support via video call an essential skill.

NIWA scientists make salmon farming breakthrough

NIWA scientists make salmon farming breakthrough

The industry is looking to expand by farming in more exposed locations, but NIWA aquaculture scientist Dr Javed Khan says such growth is likely to be constrained unless new approaches are taken in the hatcheries that supply the juvenile fish to the farms.

Tsunami evacuation zones home to 1 in 10 New Zealanders

Tsunami evacuation zones home to 1 in 10 New Zealanders

NIWA hazards analyst Ryan Paulik, who led the assessment, says overall 430,000 people – or nine per cent of the population – live in the zones of which 170,000 are in red and orange zones.

Researchers on hunt for fish nurseries

Researchers on hunt for fish nurseries

However, NIWA fisheries scientist Dr Mark Morrison says no research was undertaken at the time of the closure of Separation Point to determine if the fish nurseries were present, nor has there been any since.

Students do the science on COVID protection

Students do the science on COVID protection

As the world battles a deadly pandemic, New Zealand school students have been beavering away at science fair projects researching the effectiveness of our own COVID-19 protection measures.NIWA freshwater ecologist and science fair coordinator Tracey Burton says that there is a strong focus on COVID-19 related projects entered in the fair.

Nameless nodes get new look from NIWA

Nameless nodes get new look from NIWA

Pelorus Ridge was officially granted its title by the New Zealand Geographic Board (NZGB) last week, along with 42 other place names for undersea features in New Zealand waters.Mr Mackay says the naming of Pelorus Ridge carries on a tradition of undersea features connected to NIWA.

Concepts in sustainable aquaculture - IMTA

Concepts in sustainable aquaculture - IMTA

The paper, written by Dr Stenton-Dozey along with NIWA scientist Jeffrey Ren, Phil Heath, formerly of NIWA, and Leo Zamora from the Cawthron Institute and published in the New Zealand Journal of Marine and Freshwater Research, had its origins in a four-year NIWA research programme into IMTA around salmon farms in the Marlborough Sounds.

NIWA crew face record time at sea

NIWA crew face record time at sea

Coronavirus delays have already disrupted other voyages in the international Argo float programme and NIWA oceanographer Dr Phil Sutton says this could lead to data gaps in the research.

NIWA mapping seafloor around Whakaari/White Island

NIWA mapping seafloor around Whakaari/White Island

NIWA scientists are heading to the waters around Whakaari/White Island in the Bay of Plenty next week to survey changes to the seafloor.No-one has collected water column imaging close to Whakaari so this is an incredible opportunity to discover new areas of volcanic activity.”.

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