The Seven Station Series

Vincent Gray

Energy & Environment, 2011, vol. 22, issue 4, 429-439

Abstract: Historical evidence shows that the mean temperatures in the main cities in New Zealand have not changed significantly since records began in the 1860s 1–4 . Recently, the New Zealand Institute for Water and Air Research 11 , after a thorough Review, has presented a revised temperature anomaly chart for the average temperatures of seven of the major urban centres in New Zealand which shows that there has been an increasing temperature trend of 0.91°C per century since 1909. This paper analyses the Review and concludes that the results are compatible with the historic view of no significant change since records began. Although the trends found are explained by natural causes their statistical significance is very low because of the unsuitability of the “neighbour station†comparison used, and the inaccuracy of the measured and processed temperature measurements.

Date: 2011
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Persistent link: https://EconPapers.repec.org/RePEc:sae:engenv:v:22:y:2011:i:4:p:429-439

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