Australian extreme windspeed baseline climate investigation project
Dataset Identification:
Resource Abstract:
This study has examined the observed record of peak gust wind speed (daily maximum 3-second averaged gust wind speed) in order
to establish the existence of bias between the early part of the record (measurements obtained using pressure-tube Dines anemometers)
and the later part of the record (measurements obtained using cup anemometers). All observational data as well as metadata
was obtained from the Bureau of Meteorology. The 38 recording stations considered were in the most part staffed by Bureau
of Meteorology officers. To isolate the issue of anemometer replacement, only observing stations located at airports (i.e.
those with consistent exposure) and with more than 30 years of record were considered. The visual inspection of the observed
daily peak gust wind speed time-series for most of the Bureau of Meteorology observing sites considered in this study is sufficient
to indicate that in general the early part of the observing record contains a higher frequency of extreme events, and also
the largest amplitude extreme events. Statistical analysis of the daily maximum gust wind speed observations was conducted
by employing extreme value distributions (EVD) to examine the difference between two datasets: (1)time-series of Dines & cup
anemometer observations (no overlap for each station) (2)coincident Dines & cup anemometer observations
Citation
Title Australian extreme windspeed baseline climate investigation project
Metadata standard for this record:
ANZLIC Metadata Profile: An Australian/New Zealand Profile of AS/NZS ISO 19115:2005, Geographic information - Metadata
standard version:
1.1
Metadata record identifier:
a39c6d53-e839-6b69-e044-00144fdd4fa6
Metadata record format is ISO19139-2 XML (MI_Metadata)