b2d396a0-fa95-458c-a4da-f804950fbd05 urn:uuid eng UTF-8 nonGeographicDataset nonGeographicDataset 2016-03-29T00:59:13 creation ISO 19115 2016 BOM, Australian Evapotranspiration Data from 1961 to 1990 b2d396a0-fa95-458c-a4da-f804950fbd05 ## **Abstract** This dataset and its metadata statement were supplied to the Bioregional Assessment Programme by a third party and are presented here as originally supplied. This dataset contains mean annual areal actual, mean annual areal potential and mean annual point potential evapotranspiration gridded data for Australia for the period 1961 to 1990. Averages can be viewed annually or monthly for each data interpolation type. For full metadata view the .xml files contained within the dataset. This dataset has been provided to the BA Programme for use within the programme only. For copyright information go to http://www.bom.gov.au/other/copyright.shtml. Information on how to request a copy of data can be found at www.bom.gov.au/climate/data. ## **Dataset History** Gridded data were generated using the ANU (Australian National University) 3-D Spline (surface fitting algorithm). The grid point resolution of the data is 0.1 degrees ( approximately 10km). As part of the 3-D analysis process a 0.1 degree resolution digital elevation model (DEM) was used. Approximately 700 stations were used in the analysis, and all input station data underwent a high degree of quality control before analysis, and conform to WMO (World Meteorological Organisation) standards for data quality. Areal Actual ET is the ET that actually takes place, under the condition of existing water supply, from an area so large that the effects of any upwind boundary transitions are negligible and local variations are integrated to an areal average. Areal Potential ET is the ET that would take place, under the condition of unlimited water supply, from an area so large that the effects of any upwind boundary transitions are negligible and local variations are integrated to an areal average. Point Potential ET is the ET that would take place, under the condition of unlimited water supply, from an area so small that the local ET effects do not alter local airmass properties. It is assumed that latent and sensible heat transfers within the height of measurement are through convection only. ## **Dataset Citation** Bureau of Meteorology (2008) BOM, Australian Evapotranspiration Data from 1961 to 1990. Bioregional Assessment Source Dataset. Viewed 21 December 2017, http://data.bioregionalassessments.gov.au/dataset/48a34ef7-3e40-4ea5-b984-6cdfe09bc040. Australia Cooper subregion Gippsland Basin bioregion Namoi subregion Pedirka subregion climatologyMeteorologyAtmosphere