Gridded rainfall variability metadata


Title Three-monthly and annual rainfall variability gridded datasets.


Custodian Bureau of Meteorology
Jurisdiction Australia


Abstract Three-monthly and annual rainfall variability grids. 
The grids show rainfall variability indices across Australia in the form of two-dimensional array data.
The indices are based on the period 1900 to 2003. 
See LINEAGE below for more information.
Search Word(s) Gridded, analyses, rainfall, variability, meteorology
Geographic Extent Names(s) Australia
General Category Gridded three-monthly and annual data
General Custodian Jurisdiction Australian Government
Geographic Extent Polygon Not applicable
Geographic Bounding Box See below
North Bounding Latitude -9.875
South Bounding Latitude -44.625
East Bounding Longitude 156.375
West Bounding Longitude 111.875

Data Currency

Beginning Date 1900
Ending Date 2003

Dataset Status

Progress Completed
Maintenance and
Update frequency


Stored Data Format Arc/InfoTM grids - all Australia
Available Format Type ASCII grid-point, Arc/InfoTMgrid Interchange (.e00),Shapefiles.
Access Constraint Please note that the copyright for any data supplied by the Bureau of Meteorology is held in the Commonwealth of Australia and the purchaser shall give acknowledgement of the source in reference to the data. Apart from dealings under the Copyright Act 1968, the purchaser shall not reproduce (electronically or otherwise), modify or supply (by sale or otherwise) these data without written permission from the supplier.  Please contact us (see details below) for more information.

Data Quality

Lineage Rainfall variability was based on 104 years of monthly and annual gridded data. These gridded datasets were generated using the Barnes two-dimensional analysis. The grid point resolution of the data is 0.25 degrees (approx 25km).All available rainfall stations were used in the analyses, and the input station data underwent standard quality control. Rainfall variability was calculated using the following formula: Rainfall variability = (90th percentile - 10th percentile) / 50th percentile.
Positional Accuracy The observational (station) data on which the analyses were based have an associated accuracy of the order of 0.01 degrees (approximately 1km) or better.
Attribute Accuracy Not applicable
Logical Consistency Not applicable
Completeness No missing data

Contact Information

Contact Organisation Bureau of Meteorology
Contact Position Climate Data Services
Mail Address PO BOX 1289, Melbourne 3001, Australia
State Victoria
Country Australia
Postcode 3001
Telephone (03) 9669 4082
Facsimile (03) 9669 4515
Electronic Mail

Metadata date

Metadata date 2007
Additional Metadata These grids are based on monthly rainfall data - additional information available on request (see contact above).
Page updated: 3 October 2011