New Zealand's Environment Reporting Series: The Ministry for the Environment and Statistics New Zealand
Description
The pH of New Zealand subantarctic waters is calculated from pCO2 (dissolved carbon dioxide) and alkalinity measurements using refitted Mehrbach constants (see Mehrbach et al, 1973; Dickson & Millero, 1987), and in-situ temperature taken from the Munida time-series transect off the Otago coast. Measurements of pCO2 are taken every two months. The Munida transect, in the subantarctic waters off Otago, is the Southern Hemisphere’s longest-running record of pH measurements (NIWA, 2015). Trends were assessed using linear regression at the 95% confidence level. More information on this dataset and how it relates to our Environmental reporting indicators and topics can be found in the attached data quality pdf.
Source
NIWA
Rights
Creative Commons Attribution 4.0 New Zealand
Rights
Attribution 4.0 International
Rights
http://creativecommons.org/licenses/by/4.0/
Coverage
subantarctic waters off Otago, 1998–2016
Identifier
AC17/044
Type
Dataset
Language
eng-nz
Subject
climate change, greenhouse gas concentrations, greenhouse gas emissions, CO2, Environmental reporting series: Our atmosphere and climate 2017
