Modelled likelihood of occurrence of seasonal herbaceous wetlands in south-east Australia using field observations and a suite of temporally informed statistics for indices derived from the Landsat and ALOS satellite platforms. Model outputs include both likelihood and uncertainty surfaces. The likelihood surface depicts the mean likelihood (of 30 independent models) of seasonal herbaceous wetland occurrence at each 25 x 25 m pixel and the uncertainty surface is the standard deviation derived from the set of 30 likelihood of occurrence predictions at each pixel.

Modelled likelihood of occurrence of seasonal herbaceous wetlands in south-east Australia using field observations and a suite of temporally informed statistics for indices derived from the Landsat and ALOS satellite platforms. Model outputs include both likelihood and uncertainty surfaces. The likelihood surface depicts the mean likelihood (of 30 independent models) of seasonal herbaceous wetland occurrence at each 25 x 25 m pixel and the uncertainty surface is the standard deviation derived from the set of 30 likelihood of occurrence predictions at each pixel.

The model outputs will be useful tools for any person or agency requiring an understanding of where seasonal herbaceous wetlands are likely to occur in the landscape. Users include the Commonwealth Government, natural resource management agencies, non-government organisations, state and local government, land developers and landholders. Uses of the model outputs will include: raising awareness of the potential occurrence of seasonal herbaceous wetlands, assisting with urban planning, raising awareness of responsibilities under the EPBC Act, identifying areas to target for landholder incentive programs and assisting with provision of guidance to landholders on protection or restoration of seasonal herbaceous wetlands.
A report that describes the model and dataset development can be downloaded from: www.delwp.vic.gov.au/ari/reports  (on this page search for seasonal herbaceous wetlands)

Modelled likelihood of occurrence of seasonal herbaceous wetlands in south-east Australia using field observations and a suite of temporally informed statistics for indices derived from the Landsat and ALOS satellite platforms. Model outputs include both an uncertainty surface and a likelihood surface. The resultant model fits the field observations robustly and model validation suggests that the model extrapolates successfully even when presented with novel field observations.The likelihood surface depicts the mean likelihood (of 30 independent models) of seasonal herbaceous wetland occurrence at each 25 x 25 m pixel and the uncertainty surface is the standard deviation derived from the set of 30 likelihood of occurrence predictions at each pixel. These two surfaces can be combined and/or thresholded for decision making contexts that may be more or less risk averse.

Note that the "probability" (i.e. values between 0 and 1) have been changed to integer values from 1-100. In the mean prediction application of the model, probabilities of less than 0.05 have been put to "NoData"

Dataset Source: Seasonal Herbaceous Wetland likelihood model by ARI, DELWP

Dataset Originality: Derived

                            
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