Beach and Rapid Inlet Shoal Classifier (BRSIC) Tool

The BRISC toolset provides for two fundamental capabilities integrated together in a complimentary fashion.

brisc-dialog-1 The first component, generally referred to as the inlet tools, utilizes ArcGIS image analysis techniques, specifically an ISO unsupervised image classification that is used with an accompanying user-defined classification scheme for rapid characterization of near-shore water.  This spectral reflectance pattern recognition is applied to the water and shoal portions of a digital image to determine where channels, sub-tidal shoals, inter-tidal shoals, and super-tidal shoals spatially occur in the image.  Once a classification scheme has been applied, temporal pattern recognition from one photograph to the next photograph in time may also be used to analyze changes in channeling and shoaling.
brisc-dialog-2 The second BRISC component, referred to as the beach classification tool, provides for automated routines to quickly map the wet-dry line and the vegetation line of a beach and to generate transects from a common baseline to these features.  These transects can be exported for inclusion into other analysis tools requiring transect data and also can be used to automate generation of beach profile data using raster surfaces of the beach proximity created from x, y, z data such as lidar.  This allows for the automatic delineation of coastal features and the generation of baselines and transects, removing the tedium and subjectivity of extracting data by hand and allowing for greater precision of such measurements.
brisc-dialog-3 A set of functions exist to rapidly create and plot profiles of representative beach raster surfaces using the generated beach transects where they intersect with the beach surfaces.  PDF files of the profiles can then easily be manufactured.
 brisc-aerial-3 With one set of profile points for each raster surface, profiles from the two different surveys may now be visualized in a profile graph as seen in the image below.  The manufactured beach transects can be seen overlaying the raster surfaces generated from beach lidar data.
brisc-plot-2