GAM kelp forest model Agder-Telemark, 2010
Description
Region: The counties Aust-Agder and Telemark
Number of field observations: 1707
Field sampling years: 2005-2008
Prevalence: 43%
Presence / absences: 742/965
Method: GAM analysis in the statistical program language R, using "look up tables" and the "Grasp Extension" to transfer the predictions to ArcView GIS
Number of predictor variables: 6
Information about the predictor variables: curvature at coarse and detailed resolution (i.e. applying a 1025 and 125 m moving calculating window respectively) on a DEM with 25 m resolution; DEM, wave exposure, longitude and an optimal radiation index, all at 25 m resolution.
AUC internal: 0.88
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