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Australian Average Annual Wetness Index

Created 29/03/2016

Updated 13/04/2022

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Abstract

This dataset was derived by the Bioregional Assessment Programme from the BOM supplied Average Annual Rainfall data for the period 1961-1990 and BOM supplied Areal Potential Evapotranspiration data for the same period, 1961-1990. You can find a link to the parent datasets in the Lineage Field in this metadata statement. The History Field in this metadata statement describes how this dataset was derived.

The wetness index is the ratio between precipitation and potential evapotranspiration (rainfall / potential evapotranspiration). An index of 1 indicates areas where rainfall and evapotranspiration are equal. Index above 1 indicates a wet are where rainfall exceeds evapotranspiration and below 1 indicates a dry area where evapotransipiration is potentially greater than the rainfall for that area.

Dataset History

This dataset was created using the raster calculator tool in ArcMap with the following calculation:

Wetness Index = [rainfall] / [potential evapotranspiration].

The rainfall input was the BOM supplied Average Annual Rainfall data for the period 1961-1990 and the potential evapotranspiration input was the BOM supplied Areal Potential Evapotranspiration data for the same period, 1961-1990.

Dataset Citation

Bioregional Assessment Programme (2013) Australian Average Annual Wetness Index. Bioregional Assessment Derived Dataset. Viewed 09 October 2017, http://data.bioregionalassessments.gov.au/dataset/e4a7604e-d17f-4be0-b8a6-2a91d540fb72.

Dataset Ancestors

Files and APIs

Tags

Additional Info

Field Value
Title Australian Average Annual Wetness Index
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/en/dataset/c721686d-d473-4dcd-a165-e38725306715
Contact Point
Bioregional Assessment Program
bioregionalassessments@environment.gov.au
Reference Period 29/03/2016
Geospatial Coverage POLYGON ((153.85 -43.8, 153.85 -10.1, 112.15 -10.1, 112.15 -43.8, 153.85 -43.8))
Data Portal data.gov.au

Data Source

This dataset was originally found on data.gov.au "Australian Average Annual Wetness Index". Please visit the source to access the original metadata of the dataset:
https://data.gov.au/data/dataset/e4a7604e-d17f-4be0-b8a6-2a91d540fb72