ERDC/CHL CETN-IV-23
March 2000
Figure 2. Plan view velocity magnitude and direction plot from Shinnecock Inlet, NY (flood current)
GENERATING CROSS SECTIONS: HyPAS provides the capability of generating a cross
section from a specific transect or points along multiple transects from velocity survey data.
This tool allows the user to calculate a cross section from any constituent in the data. This
includes the north, east, and vertical components of velocity as well as acoustic backscatter.
The user selects the survey data points by drawing a polygon around the individual points and
selecting a starting point. The constituent to contour is selected. HyPAS then interpolates and
plots the cross section. A cross section was created from ADCP data collected from an area
called Victoria Bend in the Mississippi River (Figure 3).
IMPORTING AND DISPLAYING IMAGES: HyPAS provides the capability of importing and
displaying digital photographs and images to enhance project management. This tool is not
designed for image processing, but rather as an end product aid for representing analysis results
and methods.
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