Help us build a better niwa.co.nz for you by filling out our annual survey

No.07 2005

NIWA helps reduce exploration risk

Monitoring the sea level

Myriad applications for isotope analysis

Backscatter workshop a success

Effects of land-based activities on the coastal environment: issues & solutions

Myriad applications for isotope analysis

Myriad applications for isotope analysis

NIWA’s New Wave micromill is used to prepare microsamples for chemical and isotopic analysis. Complex structures can be sampled with submicron stage resolution and positional accuracy. Pictured clockwise top to bottom are: speleothem (being milled), bamboo coral sections, a galaxid otolith, a pair of pilchard otoliths.

NIWA is the leading institute in New Zealand doing high resolution analysis of stable isotopes in carbonates to identify environmental change over timescales of tens to thousands of years.

Effects of land-based activities on the coastal environment: issues & solutions

Effects of land-based activities on the coastal environment: issues & solutions

NIWA will host a two-day workshop next year through the National Centre for Water Resources and National Centre for Coasts & Oceans to highlight issues around managing the effects of land use and the transfer of these effects to the coastal environment.
When: 4–5 May 2006
Where: Te Papa, Wellington
Further details will be announced shortly.

NIWA helps reduce exploration risk

NIWA helps reduce exploration risk

Mean current speed (metres per second) in the Great South Basin, from the NIWA regional ocean model.

The Ministry of Economic Development is about to put more petroleum exploration permit blocks in the Great South Basin up for offer. In preparation for the offer, the ministry contracted NIWA to produce detailed information on the marine weather and sea conditions of the region.
Gas has already been discovered in the Great South Basin, and two blocks are currently held by the Bounty Oil and Magellan companies.

Monitoring the sea level

Monitoring the sea level

Sea-level monitoring station at Charleston (west coast).

NIWA coordinates a network of 20 open coast sea-level recorders around New Zealand, including the Chatham Islands, and Antarctica (Scott Base). The recorders collect accurate measurements of sea level and tides for monitoring coastal hazards such as storm surge and tsunami, and studying longer-term coastal processes, including El Niño effects and sea-level rise. Data are uploaded nightly and some sites are displayed at www.niwascience.co.nz/services/sealevels.

Backscatter workshop a success

Backscatter workshop a success

The workshop had a strong practical component. Participants from a range of agencies had the chance to use the latest advanced backscatter processing software (SonarScope) developed at IFREMER.

It was an intensive day. On 9 November, about 35 people attended a workshop on processing and use of sonar backscatter for advanced seafloor mapping at NIWA’s Greta Point campus.

Research subject: Oceans