We’re working through several answers from the Hon Wayne Mapp, Minister of Research, Science and Technology, concerning questions posed by ACT about the National Institute of Water and Atmospheric Research (NIWA).
One question concerns the production of what we have referred to as the Schedule of Adjustments (SOA). It’s simply a statement of what changes were made to the raw temperature readings, why and when, in order to record the scientific justification for them.
The Climate Conversation Group (CCG) and the NZ Climate Science Coalition (CSC) have been asking NIWA since November to disclose the SOA. Privately, they have told us they are “reconstructing” the SOA, and, indeed, on February 9, they quietly posted a list of all the adjustments to the seven-station series together with a discussion of the reasons for Hokitika. Well done, them.
On January 30, Eloise Gibson wrote in the NZ Herald:
The country’s climate forecaster is bowing to public pressure and putting all of its temperature data and calculations on the internet because of mistrust fuelled by errors overseas.
Principal climate scientist James Renwick said Niwa had decided to bare all because “if we don’t we appear to be hiding something”.
Two people in Niwa’s climate group have prepared a full set of documents including all the data from climate stations and a full explanation of the adjustments made to records, which should be available online in about a week.