The principal objective of the project was to
extend and improve the New Zealand fire climatology
analysis undertaken by Pearce (1996). This study comprised
three main steps: compilation of a database of daily
fire weather records for each weather station by replacing
missing or erroneous values with suitable data from
appropriate substitute stations; recalculation of Fire
Weather Index (FWI) System and associated fire danger
class values from the completed weather input datasets;
and statistical analysis of long-term average and extreme
(min/max) values of weather and fire danger components
for each weather station.
The principal output from the analysis is a summary
table for each of the 127 stations containing the long-term
average and extreme values of each of the weather FWI
system components summarised by month, fire season and
year. In addition, the summary tables include fire danger
class frequencies for forest and scrubland vegetation
types, also by month, fire season and year.
Summary statistics for each station were used to identify
the individual weather stations and geographic regions
with the most severe fire climates.