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Journal of Coastal Conservation

, Volume 22, Issue 4, pp 679–694 | Cite as

Geospatial contrasts between natural and human-altered barrier island systems: Core Banks and Ocracoke Island, North Carolina, U.S.A.

  • Paul J. Paris
  • Helena Mitasova
Article

Abstract

This study investigates differences in geomorphology between two barrier island systems, one considered to be in a pristine or natural geomorphic state, and another in some way geomorphically altered by humans. Alteration here is defined by the presence of a continuous, protective dune wall designed and installed alongshore to arrest island erosion and protect interior infrastructure. In contrasting the two environments we focus on a single question: how does the presence of such a dune wall alter the physical response of an island system to forces that compel change (e.g. storms, sea level rise)? Island widths, and ocean and sound shoreline positions are measured along a series of shore-normal transects on Core Banks and Ocracoke Island, both members of North Carolina’s Outer Banks. Surveys date from the mid-nineteenth century through 2012. Four surveys were retained for Core Banks, five for Ocracoke Island. Findings point to differences in the geomorphic character along both islands. More of Core Banks is narrow with evidence of current overwash and inlet activity. Ocracoke presents more stability, width, limited overwash, and no inlets. Evidence uncovered points to three fundamental conclusions. First: there appears to exist a minimum threshold width about which an island tends to oscillate. Second, differential shoreline retreat along Ocracoke Island has resulted in a counterclockwise (CCW) rotation along the island’s northern half. Finally, the protective dunes along Ocracoke appear to have slowed the rate of shoreline retreat, and the observed CCW rotation, by more than 40%.

Keywords

Core Banks Ocracoke Island Barrier islands geomorphology Island width Shorelines Island migration 

Notes

Acknowledgments

The authors wish to acknowledge the work of the National Oceanic and Atmospheric Administration’s National Coast and Geodetic Survey, and Nautical Charting Division for their respective efforts in assembling the shoreline data products used in this research. We also wish to thank our anonymous reviewers for their time, constructive criticisms, and suggestions. This article is a much better one for their efforts.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

References

  1. Anders F, Byrnes M (1991) Accuracy of shoreline change rates as determined from maps and aerial photographs. Shore Beach 59(1):17–26Google Scholar
  2. Birkemeier W, Dolan R, Fisher N (1984) The evolution of a barrier island: 1930–1980. Shore Beach 52(3):2–12Google Scholar
  3. Bookman CA, Culliton TJ, Warren MA (1999) Trends in U.S. Coastal Regions 1970–1988, report. NOAA, Silver SpringGoogle Scholar
  4. Boss SK, Hoffman CW, Cooper B (2002) Influence of fluvial processes on the quaternary geologic framework of the continental shelf, North Carolina, USA. Mar Geol 183(1–4):45–65CrossRefGoogle Scholar
  5. Camfield FE, Morang A (1996) Defining and interpreting shoreline change. Ocean Coast Manag 32(3):129–151CrossRefGoogle Scholar
  6. Crowell M, Leatherman SP, Buckley MK (1991) Historical shoreline change: error analysis and mapping accuracy. J Coast Res 7(3):839–852Google Scholar
  7. Culver SJ, Ames DV, Corbett DR, Mallinson DJ, Riggs SR, Smith CG, Vance DJ (2006) Foraminiferal and sedimentary record of late Holocene Barrier Island evolution, Pea Island, North Carolina: the role of storm overwash, inlet processes, and anthropogenic modification. J Coast Res 224:836–846CrossRefGoogle Scholar
  8. Culver S, Pre C, Mallinson D, Riggs S, Corbett D, Foley J, Hale M, Metger L, Ricardo J, Rosenberger J et al (2007) Late Holocene barrier island collapse: Outer Banks, North Carolina, USA. Sediment Theatr Rec 5(4):4–8CrossRefGoogle Scholar
  9. Culver SJ, Farrell KM, Mallinson DJ, Horton BP, Willard DA, Thieler ER, Riggs SR, Snyder SW, Wehmiller JF, Bernhardt CE, Hillier C (2008) Micropaleontologic record of late Pliocene and quaternary paleoenvironments in the northern Albemarle embayment, North Carolina, U.S.A. Palaeogeogr Palaeoclimatol Palaeoecol 264(1–2):54–77CrossRefGoogle Scholar
  10. Davis RA Jr, Hayes MO (1984) What is a wave-dominated coast? Mar Geol 60(1–4):313–329CrossRefGoogle Scholar
  11. Dolan R (1972) Barrier dune system along the Outer Banks of North Carolina: a reappraisal. Science 176:286–288CrossRefGoogle Scholar
  12. Dolan R, Hayden B (1983) Patterns and prediction of shoreline change. In: Komar P (ed) CRC handbook of coastal processes and erosion, Chapter 6. CRC Press, Boca Raton, pp 123–149Google Scholar
  13. Dolan R, Lins H (1986) The Outer Banks of North Carolina, U.S. Geological Survey professional paper 1177-B, U. S. Geological Survey, RestonGoogle Scholar
  14. Dolan R, Godfrey PJ, Odum WE (1973) Man’s impact on the Barrier Islands of North Carolina. Am Sci 61:152–162Google Scholar
  15. Dolan R, Fenster MS, Holme SJ (1991) Temporal analysis of shoreline recession and accretion. J Coast Res 7(3):723–744Google Scholar
  16. Dolan R, Fenster MS, Holme SJ (1992) Spatial analysis of shoreline recession and accretion. J Coast Res 8(2):263–285Google Scholar
  17. Dunbar GS (1958) Historical geography of the North Carolina Outer Banks. Louisiana State University Press, Baton RougeGoogle Scholar
  18. Godfrey P, Godfrey M (1973) Comparison of ecological and geomorphic interactions between altered and unaltered barrier island systems in North Carolina. In Coates, D. R., editor, Coastal Geomorphology, volume Proceedings of the Third Annual Geomorphology Symposia Series, chapter 11, pages 239–258. State University of New York, BinghamtonGoogle Scholar
  19. Hardin E, Mitasova H, Overton M (2011) Quantification and characterization of terrain evolution in the Outer Banks, NC. In: Proceedings of the coastal sediments ‘11, Miami, pp 739–753Google Scholar
  20. Hayes MO (1979) Barrier island morphology as a function of tidal and wave regime. In Leatherman, S.P. (ed.), Barrier Islands from the Gulf of St. Lawrence to the Gulf of Mexico, Academic Press, New York, pp 1–27Google Scholar
  21. Heron, SD, Moslow TF, Berelson WM, Herbert JR, Steele GA III, Susman KR (1984) Holocene sedimentation of a wave-dominated barrier island shoreline: Cape Lookout, North Carolina. Mar Geol 60(1–4):413–434Google Scholar
  22. Leatherman SP (1979) Migration of Assateague Island, Maryland, by inlet and Overwash processes. Geology 7(2):104–107CrossRefGoogle Scholar
  23. Mallinson D, Riggs S, Thieler ER, Culver S, Farrell K, Foster DS, Corbett DR, Horton B, Wehmiller JF (2005) Late Neogene and quaternary evolution of the northern Albemarle embayment (mid-Atlantic continental margin, USA). Mar Geol 217(1–2):97–117CrossRefGoogle Scholar
  24. Mallinson DJ, Culver SJ, Riggs SR, Thieler ER, Foster D, Wehmiller J, Farrell KM, Pierson J (2010) Regional seismic stratigraphy and controls on the quaternary evolution of the Cape Hatteras region of the Atlantic passive margin, USA. Mar Geol 268(1–4):16–33CrossRefGoogle Scholar
  25. Meredith A, Eslinger D, Aurin D (1999) An evaluation of hurricane- induced erosion along the north Carolina coast using airborne LIDAR surveys. Technical Report NOAA/CSC/99031-PUB, NOAA Coastal Services CenterGoogle Scholar
  26. Mitasova H, Hardin E, Overton M, Harmon R (2009) New spatial measures of terrain dynamics derived from time series of lidar data. In: Geoinformatics, 2009 17th International Conference, George Mason University, Fairfax, IEEE, pp 1–6Google Scholar
  27. Mitasova H, Hardin E, Overton M, Kurum M (2010) Geospatial analysis of vulnerable beach-foredune systems from decadal time series of LiDAR data. J Coast Conserv 14(3):161–172CrossRefGoogle Scholar
  28. Moore LJ (2000) Shoreline mapping techniques. J Coast Res 16(1):111–124Google Scholar
  29. Moslow T, Heron S (1979) Quaternary evolution of Core Banks, North Carolina: cape lookout to new drum inlet. In: Leatherman S (ed) Barrier Islands. Academic Press, New York, pp 211–236Google Scholar
  30. Moslow T, Heron S (1994) The Outer Banks of North Carolina. In: Davis R (ed) Geology of Holocene Barrier Island systems. Springer Verlag, New York, pp 47–74CrossRefGoogle Scholar
  31. Overpeck JT, Otto-Bliesner BL, Miller GH, Muhs DR, Alley RB, Kiehl JT (2006) Paleoclimatic evidence for future ice-sheet instability and rapid sea-level rise. Science 311:1747–1750CrossRefGoogle Scholar
  32. Pajak MJ, Leatherman S (2002) The high water line as shoreline indicator. J Coast Res 18(2):329–337Google Scholar
  33. Parham PR, Riggs SR, Culver SJ, Mallinson DJ, Wehmiller JF (2007) Quaternary depositional patterns and sea-level fluctuations, northeastern North Carolina. Quat Res 67(1):83–99CrossRefGoogle Scholar
  34. Park J, Wells JT (2005) Longshore transport at Cape Lookout, North Carolina: shoal evolution and the regional sediment budget. J Coast Res 21(1):1–17CrossRefGoogle Scholar
  35. Park J, Wells JT (2007) Spit growth and down drift erosion: results of longshore transport modeling and morphologic analysis at the Cape Lookout cuspate foreland. J Coast Res 23(3):553–568CrossRefGoogle Scholar
  36. Pierce J, Colquhoun D (1970) Holocene evolution of a portion of the North Carolina coast. Geol Soc Am Bull 81(12):3697–3714CrossRefGoogle Scholar
  37. Pilkey OH, Neal WJ (2002) Engineered barrier islands; lifeless piles of sand. Abstr Prog Geol Soc Am 34(6):446–446 Geological Society of America, 2002 Annual Meeting - DenverGoogle Scholar
  38. QGIS Development Team (2013) QGIS geographic information system. Open Source Geospatial Foundation ProjectGoogle Scholar
  39. Riggs SR, Ames DV, Culver SJ, Mallinson DJ, Smith CG, Corbett DR (2004) Geomorphic, Time-Slice Mapping of Dynamic Barrier Islands, North Carolina’s Outer Banks; a Basis for Prudent Management. Abstracts with Programs - Geological Society of America 36(5):123Google Scholar
  40. Riggs S, Ames D (2006) Effect of storms on barrier island dynamics, Core Banks, Cape Lookout National Seashore, North Carolina, 1960-2001. US Geol Surv Sci Investig Rep 5309:73Google Scholar
  41. Riggs SR, Cleary WJ, Snyder SW (1995) Influence of inherited geologic framework on barrier shoreface morphology and dynamics. Mar Geol 126(1–4):213–234CrossRefGoogle Scholar
  42. Riggs SR, Ames DV, Culver SJ, Mallinson DJ, Corbett DR, Walsh JP (2008) Barrier islands in the eye of a human hurricane; economic development vs climate change, sea- level rise, and storms. International Geological Congress, Abstracts = Congres Geologique International, Resumes, 33:0–Abstract 1339232. 33rd international Geological CongressGoogle Scholar
  43. Riggs SR, Ames DV, Culver SJ, Mallinson DJ (2011) The battle for North Carolina’s coast - evolutionary history, present crisis, and vision for the future. The. University of North Carolina Press, Chapel HillGoogle Scholar
  44. Sager ED, Riggs SR (1998) Models for the holocene valley-fill history of Albemarle sound, North Carolina, USA. In: Tidalites, vol. 61, SEPM (Society for Sediment Geol), pp 119–127Google Scholar
  45. Shalowitz AL (1964) Shore and sea boundaries with special reference to the interpretation and use of coast and geodetic survey data. Technical Report Publication 10–1, U.S. Department of Commerce, p 749Google Scholar
  46. Smith CG, Culver SJ, Riggs SR, Ames D, Corbett DR, Mallinson D (2008) Geospatial analysis of Barrier Island width of two segments of the Outer Banks of North Carolina, USA: anthropogenic curtailment of natural self-sustaining processes. J Coast Res 24(1):70–83CrossRefGoogle Scholar
  47. Stick D (1958) The Outer Banks of North Carolina. University of North Carolina Press, Chapel HillGoogle Scholar
  48. Stutz ML, Pilkey OH (2005) The relative influence of humans on barrier islands; humans versus geomorphology. Rev Eng Geol 16:137–147Google Scholar
  49. Thieler E, Himmelstoss E, Zichichi J, Ergul A (2009) Digital Shoreline Analysis System (DSAS) version 4.0—An ArcGIS extension for calculating shoreline change. U.S. Geological Survey Open File Report 2008–1278, Accessed from: http://woodshole.er.usgs.gov/project-pages/dsas/version4/

Copyright information

© Springer Science+Business Media B.V., part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Marine, Earth, and Atmospheric SciencesNorth Carolina State UniversityRaleighUSA

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