Other - RTK (high accuracy) GPS: primary platform. Terrestrial LiDAR: secondary platform, specifically the ARRA-funded Northeast Coastal LiDAR and the Post-Hx Sandy LiDAR

One of the key early steps in preparing for sea-level rise and storm surge is ensuring that the geodetic “backbone,” the National Geodetic Survey (NGS) benchmarks, have long-term viability and provide complete coverage for park coastal zones. This task was just completed for the northeast coastal national parks by the University of Rhode Island and the National Park Service (NPS).