|The process of shoreline change analysis
using CSCAP currently consists of six steps:
1. Acquire high resolution
satellite imagery (primarily IKONOS and Quickbird)
2. Acquire and georeference
accurate shoreline base maps (NOS t-sheets or digital manuscripts)
3. Fine-tune the georeferencing
of the satellite imagery by choosing common points on the imagery and on
the base maps and resampling the imagery to fit the geometry of the base
4. Bring all data (imagery
and nautical charts) to a common projection, spheroid and datum, and display
as layers in a GIS.
5. Analyze changes and record
in a point file with descriptions of the changes noted.
6. Pass this information on to either
Office of Coast Survey or NGS Remote Sensing Division personnel depending
on the purpose of the project.