Aletho News


New Zealand’s NIWA sued over climate data adjustments

August 16, 2010 by Anthony Watts

NIWA is being sued by the NZ Climate Coalition, mainly due to the differences in data in this graph:

Niwa sued over data accuracy

The country’s state-owned weather and atmospheric research body is being taken to court in a challenge over the accuracy of its data used to calculate global warming.

The New Zealand Climate Science Coalition said it had lodged papers with the High Court asking the court to invalidate the official temperatures record of the National Institute of Water and Atmospheric Research (Niwa).

The lobby of climate sceptics and ACT Party have long criticised Niwa over its temperature data, which Niwa says is mainstream science and not controversial, and the raw data publicly available.

The coalition said the New Zealand Temperature Records (NZTR) were the historical base of NIWA’s advice to the Government on issues relating to climate change.

Coalition spokesman Bryan Leyland said many scientists believed although the earth had been warming for 150 years, it had not heated as much as Government archives claimed.

He said the New Zealand Meteorological Service had shown no warming during the past century but Niwa had adjusted its records to show a warming trend of 1degC. The warming figure was high and almost 50 percent above the global average, said Mr Leyland.

”Twentieth-century temperature records are now being challenged all around the world” said Bryan Leyland, spokesman for the NZCSET. “But I think we are the first country where the issues are to be placed squarely before an independent judicial forum.”
“Many scientists believe that, although the earth has been in a natural warming phase for the past 150 years, it has not heated as much as Government archives claim. The precise trend figure is extremely important, as it forms the sole basis of the claim that human activities are the dominant cause of the warming.

“The New Zealand Met Service record shows no warming during the last century, but NIWA has adopted a series of invariably downward adjustments in the period prior to World War 2. Because these move the old temperature records downwards, the 7SS NZTR shows a huge bounce-back of over 1°C in the first half of the century” said Mr. Leyland. “Although this is out of line with dozens of other records, and has been the subject of sustained questioning by both the New Zealand Climate Science Coalition and the ACT party, NIWA refuses to accept that there are serious problems with the adjustments. In fact, no one has been able to explain exactly how they were arrived at.”

The Court proceedings also allege bias and unethical conduct on the part of NIWA’s National Climate Centre. These are based partly on NIWA allegedly delegating the NZTR decision to a former employee, James Salinger, knowing that he had a vested interest in an untested theory put forward in his own 1981 thesis. NIWA also knew that the data and calculations for that theory had been lost, and, thus could not be replicated.

The Court will be asked to rule that NIWA has refused to repudiate the current NZTR in order to avoid political embarrassment, and feared loss of public confidence in the objectivity of its scientists. The proceedings were filed and served this week, and NIWA has up to a month to respond.

Full story here:

August 17, 2010 - Posted by | Deception, Science and Pseudo-Science

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