The Bureau maintains the unadjusted or «raw» digital data in its national climate database known as ADAM (Australian Data Archive for Meteorology). (bom.gov.au)
In February 2010, NIWA published a showcase paper offering details of adjustments it has made to the NZ Climate Database for the Hokitika Airport — one of the «Seven - station Series» (7SS) which makes up the official New Zealand temperature record. (climatescience.org.nz)
By using sophisticated econometric / statistical methods on 13 different climate databases for the years 1959 to 2015 where available, the study concludes that the changes in CO2 have no measurable net effects on global temperatures but that global temperatures affect CO2 levels. (carlineconomics.com)