20210608 10465200 1.0 FALSE BoF_Benthoscape 002 169791.006000 385391.006000 4878664.781000 5058014.781000 1 0.000 Projected GCS_WGS_1984 Linear Unit: Meter (1.000000) WGS_1984_Web_Mercator_Auxiliary_Sphere <ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/2.7.0'><WKT>PROJCS["WGS_1984_Web_Mercator_Auxiliary_Sphere",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Mercator_Auxiliary_Sphere"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",0.0],PARAMETER["Standard_Parallel_1",0.0],PARAMETER["Auxiliary_Sphere_Type",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",3857]]</WKT><XOrigin>-20037700</XOrigin><YOrigin>-30241100</YOrigin><XYScale>10000</XYScale><ZOrigin>-100000</ZOrigin><ZScale>10000</ZScale><MOrigin>-100000</MOrigin><MScale>10000</MScale><XYTolerance>0.001</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><WKID>102100</WKID><LatestWKID>3857</LatestWKID></ProjectedCoordinateSystem> 20230126 14485100 20230126 14485100 150000000 5000 ItemDescription Esri ArcGIS 12.7.0.26828 BoF_Benthoscape 1 -67.233943 -64.430751 45.666209 43.986893 The benthoscape map was produced using an unsupervised classification process (see below) with a 71% accuracy in classification according to in situ groundtruthed data. <DIV STYLE="text-align:Left;"><DIV><DIV>Classifications include: - Tidal Scoured Mixed Sediments (Glacial till - boulders or cobble with high roundness and low angularity)- Mixed Sediments (Glacial Till - < 50% boulders or bedrock with mixed sediments of cobble, gravel and sand) - Gravelly Sand (Sand with 5–30% gravel)- Sand (> 90% Sand)- Silty Gravel with Anemones (> 50% gravel with silt and Anemones)- Silt (> 90% Silt) and Bedrock and Boulders (> 50% bedrock or boulders).Unsupervised classification process is as follows:1. Image objects were produced using eCognition software (segmentation layer found in the UnsupervisedClassification_shapefiles/Segmentation_eCognition) using bathymetry and backscatter only.2. Fuzzy c-means algorithm was applied (using PPCLUST package in R) to the segmentation layer and environmental variables to get acoutic classes (#1-14 - number of clusters were optimized at 14). 3. Bottom types from in-situ video were classified using a benthoscape classification method. 10 images at 10 meter intervals from each station were extracted and analysed.4. Benthoscape classes from groundtruthed video data were then matched to the acoustic classes in an error matrix. </DIV></DIV></DIV> Wilson, B.R., Brown, C.J., Sameoto, J.A., Lacharite, M., Redden, A. (2021). Mapping seafloor habitats in the Bay of Fundy to assess macrofaunal assemblages associated with Modiolus modiolus beds. Estuarine, Coastal and Shelf Science, 252. https://doi.org/10.1016/j.ecss.2021.107294 Bay of Fundy Benthoscape 2021 File Geodatabase Feature Class 0.000 dataset EPSG 6.18.3(9.3.1.2) 0 Simple FALSE 0 TRUE FALSE BoF_Benthoscape Feature Class 0 OBJECTID OBJECTID OID 4 0 0 Internal feature number. Esri Sequential unique whole numbers that are automatically generated. Shape Shape Geometry 0 0 0 Feature geometry. Esri Coordinates defining the features. CLASS CLASS String 80 0 0 Shape_Length Shape_Length Double 8 0 0 Length of feature in internal units. Esri Positive real numbers that are automatically generated. Shape_Area Shape_Area Double 8 0 0 Area of feature in internal units squared. Esri Positive real numbers that are automatically generated. 20230126