Trends in annual maximum one–day rainfall (rx1day), 1960–2016
New Zealand's Environment Reporting Series: The Ministry for the Environment and Statistics New Zealand
Trends in annual maximum one-day rainfall (rx1day), 1960–2016. Intense rainfall can result in flash floods or land slips that damage homes and property, disrupt transportation, and endanger lives. It can also interfere with recreation and increase erosion. Changes to the frequency of intense rainfall events can alter biodiversity. Trend direction was assessed using the Theil-Sen estimator and the Two One-Sided Test (TOST) for equivalence 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.