Northeast Coastal and Barrier Network monitoring of shoreline position (1D) and coastal topographical (2D) change: 2017-2018 annual summary report for Gateway National Recreation Area
Psuty NP, Liu G, Habeck A. 2018. Northeast Coastal and Barrier Network monitoring of shoreline position (1D) and coastal topographical (2D) change: 2017-2018 annual summary report for Gateway National Recreation Area. Natural Resource Data Series. NPS/NCBN/NRDS—2018/1181. National Park Service. Fort Collins, Colorado
This Monitoring Report incorporates the changes of shoreline position (1D) and the changes of dune/beach profiles (2D) in Gateway National Recreation Area from the spring of 2017 through the spring of 2018. Following established protocols, seasonal surveys generated data sets for subsequent comparisons. Although too early to identify trends of change, the data do provide a series of dimensions regarding the linear distances of shoreline position changes and both linear dimensions and cross-sectional areas of beach and dune features on the profiles. A variety of figures and tables portray the metrics derived from the monitoring programs for each of the seasonal surveys and the differences among the seasonal surveys for the span of one year. During this survey period, shoreline change was generally characterized by landward displacement in the summer season and seaward displacement in the winter season, with larger magnitudes of displacement in the former compared to the latter. Most shorelines exhibited net annual landward displacement. However, net annual seaward displacements occurred at all three components of the Staten Island Unit. Beach profile changes were highly variable depending upon the site and profile. In general, there was erosion during the winter season and accretion during the summer season. Dune profiles exhibited comparatively less change, though net increases in dune area occurred at many downdrift sites in Sandy Hook and Great Kills.
- Type
- Published Report
- Authors
- Psuty, Norbert; Liu, Glenn; Habeck, Andrea
- Date of Issue
- 2018-09
- Publisher
- National Park Service
- Units
- GATE , NCBN , NRSS
- Keywords
- 1D, 2254745, 2D, coastal geomorphology, Coastal Topography, dune/beach profiles, GATE, Gateway National Recreation Area, Inventory & Monitoring, NCBN, Northeast Coastal and Barrier Network, Shoreline Position, topographic change