mathematics

RV Tangaroa

RV Tangaroa is a mathematics topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand RV Tangaroa rather than just read about it. In short: RV Tangaroa is a research vessel operated by Earth Sciences New Zealand (formerly NIWA). It was purpose-built as a Deepwater Research Vessel for the then Ministry of Agriculture and Fisheries Research Centre at a cost of $27 million to replace the ageing GRV James Cook.

Key takeaways

RV Tangaroa belongs to mathematics; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect RV Tangaroa to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of RV Tangaroa from memory before moving on to harder problems.

Reference excerpt

RV Tangaroa is a research vessel operated by Earth Sciences New Zealand (formerly NIWA). It was purpose-built as a Deepwater Research Vessel for the then Ministry of Agriculture and Fisheries Research Centre at a cost of $27 million to replace the ageing GRV James Cook. It has a DNV classification of 1A1 (stern trawler) and Ice 1C (sufficient strength and power to operate in ice floes up to 0.4 metres (16 in) thick). It was transferred to the new National Institute of Water and Atmospheric Research in 1992. Tangaroa operates for 320 to 340 days per year conducting fisheries research in New Zealand's Exclusive Economic Zone and marine research in the waters surrounding Antarctica. It is equipped for hydrographic, bathymetric and oceanographic surveys to measure and map various properties of the ocean and seabed; biological surveys; and for both acoustic and trawl fisheries surveys. It can trawl to 4,000 metres (13,000 ft) and conduct acoustic soundings down to 10,000 metres (33,000 ft). In 2010 Tangaroa received a $20 million upgrade including a dynamic positioning system. This allows the ship to "automatically maintain a vessel in a fixed position at sea (within a few metres) by using its own propellers and thrusters". NIWA defended contracting the work to a Singapore dockyard to do the work instead of using the Devonport Naval Base Dockyard. On one voyage in 2003, scientists aboard RV Tangaroa discovered over 500 species of fish and 1,300 species of invertebrate, and the tooth of an extinct megalodon. In October–November 2016, a collaborative team of researchers on Tangaroa from Auckland Museum, University of Auckland, Massey University, NIWA and the Museum of New Zealand Te Papa Tongarewa undertook research around Kermadec Islands. The multi-disciplinary team investigated the biodiversity of organisms living on the ocean floor and at midwater. The marine mammal populations were examined to determine what animal and plant species are shared between mainland New Zealand and the Kermadec region. Following the November 2016 Kaikōura earthquake, the ship was diverted to collect seafloor shallow cores between 14 and 19 November across and along the submarine Kaikoura Canyon. Andrew Leachman served as the ship's first captain for more than 20 years, bringing the ship to New Zealand from Norway, and taking it as far north as New Caledonia and as far south as Antarctica.

See also HMNZS Manawanui - former dive and hydrographic survey vessel RV Kaharoa - other NIWA research vessel

References

RV Tangaroa: purpose-built deepwater research vessel, NIWA, 1995. ISBN 0-478-04647-2

Illustrations

Worked examples

Example 1 — a first encounter with RV Tangaroa

Start with the simplest possible case. Write down what RV Tangaroa claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In mathematics, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to RV Tangaroa before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about RV Tangaroa ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of RV Tangaroa

In research: RV Tangaroa appears in mathematics research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses RV Tangaroa in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: RV Tangaroa is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1991 ships, IMO numbers, Research vessels of New Zealand, so understanding it makes those chapters shorter.
In everyday life: Look for RV Tangaroa outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study RV Tangaroa in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what RV Tangaroa means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain RV Tangaroa out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is RV Tangaroa in simple terms?

Why does RV Tangaroa matter?

Because it connects several mathematics ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study RV Tangaroa?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on RV Tangaroa.