Coastal Vulnerability Assessment of Gateway National Recreation Area (GATE) to Sea-Level Rise

Open-File Report 2004-1257
Prepared in cooperation with the National Park Service
By: , and 

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Abstract

A coastal vulnerability index (CVI) was used to map the relative vulnerability of the coast to future sea-level rise within Gateway National Recreation Area in New York and New Jersey. The CVI ranks the following in terms of their physical contribution to sea-level rise-related coastal change: geomorphology, regional coastal slope, rate of relative sea-level rise, historical shoreline change rates, mean tidal range, and mean significant wave height. The rankings for each variable were combined and an index value was calculated for 1-minute grid cells covering the park. The CVI highlights those regions where the physical effects of sea-level rise might be the greatest. This approach combines the coastal system's susceptibility to change with its natural ability to adapt to changing environmental conditions, yielding a quantitative, although relative, measure of the park's natural vulnerability to the effects of sea-level rise. The CVI provides an objective technique for evaluation and long-term planning by scientists and park managers. Gateway National Recreation Area consists of stable and washover dominated segments of Holocene barrier spit on Breezy Point and Sandy Hook, and Pleistocene glacial outwash and historic artificial fill on Staten Island. The areas within Gateway that are likely to be most vulnerable to sea-level rise are those with the highest occurrence of overwash and the highest rates of shoreline change.

Suggested Citation

Pendleton, E.A., Thieler, E.R., and Williams, S.J., 2005, Coastal vulnerability assessment of Gateway National Recreation Area (GATE) to sea-level rise, U.S. Geological Survey Open-File Report 2004-1257

ISSN: 2331-1258 (online)

Study Area

Table of Contents

  • Abstract
  • Introduction
  • Data Ranking
  • The Gateway National Recreation Area
  • Methodology
  • Geologic Variables
  • Physical Process Variables
  • Coastal Vulnerabilty Index
  • Results
  • Discussion
  • Conclusions
  • References
  • List of Figures
  • References
Publication type Report
Publication Subtype USGS Numbered Series
Title Coastal vulnerability assessment of Gateway National Recreation Area (GATE) to sea-level rise
Series title Open-File Report
Series number 2004-1257
DOI 10.3133/ofr20041257
Year Published 2005
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) Woods Hole Coastal and Marine Science Center
Description 27 p.
Country United States
State New Jersey, New York
Other Geospatial Gateway National Recreation Area
Online Only (Y/N) Y
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