Heavy Rainfall Patterns in the Auckland Region, New Zealand | The Meteorological Society of New Zealand

Heavy Rainfall Patterns in the Auckland Region, New Zealand

Year: 
2006
Volume: 
27
Author(s): 
S. Holderness
M.J. Salinger
Abstract: 

The purpose of this study was to stratify rainfall patterns in the Auckland region (New Zealand). Principal component analysis (PCA) using the method of varimax rotation was used to reduce the dimensionality of the data. Three distinct precipitation patterns emerge caused by four synoptic situations. Given the great variability in the synoptic patterns that can occur in New Zealand, the similarities for each precipitation pattern in the Auckland region are good. The results demonstrate that the location of the two ranges in the Auckland region have a significant effect on the amount and distribution of precipitation in two  of the distinct patterns.

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