Video | Business Headlines | Internet | Science | Scientific Ethics | Technology | Search

 

NIWA stands by its scientists

NIWA today rejected allegations by Hon Rodney Hide that it had misled Cabinet Ministers over its analysis of New Zealand temperatures.
May 06, 2010

NIWA: adjusted 7
station and 11 station temperature
anonmaly
Click for big version

Two New Zealand temperature series compared. The warmer and cooler periods clearly do coincide, despite the fact they use separate data-sets and only one (the seven-station series) uses adjusted data.

“I stand by the integrity and professionalism of our scientists,” says NIWA’s Chief Executive John Morgan. “NIWA is an internationally respected and responsible science organisation and we do not get involved in political commentary or process. NIWA will continue to conduct its science in a highly professional and ethical way.”

“There are many lines of evidence which point to New Zealand’s climate warming,” says NIWA’s Chief Climate Scientist, Dr David Wratt. “This evidence includes land-based measurements, ship-based measurements, and shrinking glaciers.”

At the heart of Mr Hide’s criticism are two independent time-series using land-based temperature measurements. These are the long-running 7-station series which uses a composite record of measurements for seven places around New Zealand and goes back more than 100 years; and an independent, 11-station series which uses measurements from another 11 stations and stretches back almost 80 years. The 7-station series uses adjusted data to account for site changes, whereas the 11-station series uses unadjusted data. Both show a long-term warming trend for New Zealand.

In specific response to Mr Hide’s criticisms:

NIWA has already published a schedule of adjustments for its 7-station series on this website.

Information about the 11-station series (for which no adjustments were made) is already available on this website.

The two series show very similar trends. The warmer and cooler periods clearly do coincide, despite the fact they use separate data-sets and only one uses adjusted data. This is shown clearly in the graph at the top right of this web page.

We wish to make clear the following:

• NIWA makes its original climate data freely available over the web for anyone to analyse, and it can be accessed here. This has been the case since 1 July 2007.

• The adjusted 7-station series was made available to a member of the NZ Climate Science Coalition on 19 July 2006.

• The need to make adjustments is internationally accepted amongst climate scientists. In climate science, it is a necessary and well-established process to ensure you are comparing apples with apples, such as when a site moved to a higher or more exposed location. NIWA keeps all the original, unadjusted data secure in the national climate database, which anyone can access free over the web.

• The initial 7-station series was documented in Dr Jim Salinger’s PhD thesis for Victoria University. This was reviewed and passed by expert examiners, and is available from the university. Since then, several papers have been published in the scientific literature documenting the methods used and analysing the results from this series. References are available on our website.

• NIWA has a project underway to further document the 7-station series, and will post this information on our website.

• When this issue first arose last year, NIWA provided an open briefing to MPs, which was attended by Mr Hide.


ENDS

© Scoop Media

 
 
 
Business Headlines | Sci-Tech Headlines

 


Contact: Business Drops, New Generation On Hold

New Zealand’s second-largest energy company Contact Energy (‘Contact’) released its full year financial results for the 12 months to 30 June 2020 (‘FY20’) this morning. More>>

Mining: OceanaGold Announces Receipt Of WKP Mining Permit

MELBOURNE, Australia, Aug. 6, 2020 /CNW/ - OceanaGold Corporation (TSX: OGC) (ASX: OGC) (the 'Company') is pleased to announce it has received the mining permit for Wharekirauponga ('WKP') on the North Island of New Zealand. ... More>>

ALSO:

Economy: COVID-19 Lockdown Has Widespread Effects On Labour Market

In the June 2020 quarter, the seasonally adjusted unemployment rate fell to 4.0 percent, down from 4.2 percent last quarter, while underutilisation rose, Stats NZ said today. More>>

ALSO:

NZ Post: New Research By NZ Post Shows Online Shopping Grew 105% In Alert Level 3

New research by NZ Post into how the COVID-19 response has impacted the way Kiwis shop online, shows online shopping increased 105%* when the country moved into Alert Level 3, and may have changed the way Kiwis shop permanently. Online spend peaked ... More>>

ALSO:

Banking: Westpac NZ Lowers Merchant Fees For Small Businesses

Westpac NZ is rolling out a new merchant fee pricing structure that will lead to cost savings for more than 10,000 small and medium Kiwi businesses, and could make contactless transactions more widely available for customers. On 1 September, most ... More>>

REINZ: Million Dollar Plus Property Sales Increase 11.7% Nationally

The number of properties sold around the country for one million dollars or more during the first half (H1) of 2020 increased by 11.7% compared to H1 2019, with 5,426 million-dollar plus properties sold (up from 4,858 in H1 2019) according to the Real ... More>>

Antarctica NZ: Ice-Olation

Antarctica New Zealand is gearing up for a much reduced season on the ice this year and a very different deployment to normal! Before they head to one of the remotest places on the planet, all personnel flying south with the New Zealand programme will ... More>>

ALSO:

QV Valuations: July House Price Index Illustrates Market Resilience

According to the July 2020 QV House Price Index (HPI) results out today , property values recorded a marginal increase, up 0.2% over the month. This is somewhat of a turnaround from June, after the national index edged 0.2% lower. More>>

ALSO:

Property: Queenstown Rents Experience Biggest Drop In Seven Years

Rental prices in the Queenstown-Lakes district saw the biggest annual percentage drop in seven years after falling 28 per cent on June last year, according to the latest Trade Me Rental Price Index. Trade Me Property spokesperson Aaron Clancy said ... More>>

Seismology: The Quiet Earth

As many daily activities came to a halt during lockdown, the Earth itself became quiet, probably quieter than it has been since humans developed the technology to listen in. Seismologists have analysed datasets from more than 300 international ... More>>

RNZ: James Shaw Says Kiwibank, Not Ministers Should Decide On Investors

Climate Change Minister James Shaw says Kiwibank's decision to stop doing business with companies dealing in fossil fuels is the right one. More>>

ALSO:

FMA: Kiwis Confident Financial Markets Will Recover From COVID-19, Plan To Increase Investments

Despite the majority (60%) of investors experiencing losses as a result of COVID-19, the outlook on investing remains positive, according to a Financial Markets Authority (FMA) survey. Most Kiwis (71%) were optimistic that the pandemic will pass eventually ... More>>

FIRST Union: Warehouse Using Covid For Cover As Extensive Restructure Makes Everyone Worse Off

(FIRST Union comments on The Warehouse consultation and proposed restructure) 'Unfortunately the Warehouse have done the disappointing thing and used Covid-19 to justify a bunch of operational business decisions that will leave hundreds of workers without jobs ... More>>

ALSO: