Figure 3.9: New Zealand smoothed temperatures 1871-1998
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Note: This figure shows annual filtered composite marine and surface air temperatures for the New Zealand region, 1871-1998, compared with the 1961-90 average, using a mathematical smoothing routine with a half-amplitude of 25 years. Uncertainty bands about SST (blue shading) and the mean air temperatures (black hatching) indicate plus and minus one standard error. Trends are shown for annual maximum, mean and minimum air temperatures, sea surface temperatures and night marine air temperatures. The global surface temperature trend is indicated by a dashed line. Note: Figure taken from Folland et al (2003).
Text description of figure
This figure shows annual filtered composite marine and surface air temperature anomalies for the New Zealand region, 1871-1998, relative to the 1961-1990 averages, using a mathematical smoothing routine with a half-amplitude of 25 years. Uncertainty bands about SST and mean air temperatures indicate plus and minus one standard error. Trends are shown for annual maximum, mean and minimum air temperatures, sea surface temperatures and night-time marine air temperatures. The long records show a clear rise in New Zealand temperatures in the order of 0.7 degrees Celsius since 1871. A global surface temperature trend is also indicated for comparison purposes.
