BRT carbonate sand model Oslo Fjord, 2011
Description
Region: The counties Oslo, Akershus, Buskerud, ├ÿstfold, Vestfold
Number of field observations: 653
Field sampling years: 2008
Prevalence: 12%
Presence / absences: 76/577
Method: BRT run in R with the R-package Dismo.
Number of predictor variables: 20
Information about the predictor variables: DEM (25 m resolution), slope (two resolutions; based on a 12.5 and a 25 m DEM respectively), aspect (based on a 12.5 m DEM), curvature at detailed, medium and coarse resolution (i.e. applying a 125, 525 and 1025 m moving calculating window respectively, based on the 25 m DEM); wave exposure, longitude, and optimal radiation index, all with 25 m resolution; and maximum surface and seafloor current speed, slope of maximum surface and seafloor current speed, mean surface and seafloor current speed, standard deviation of surface and seafloor current speed, and 90th percentile of surface and seafloor current speed, all current speed predictor variables with 200 m resolution, but resampled to 25 m.
AUC internal: 0.9.
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