Coastal foredune topography as a control on secondary airflow regimes under offshore winds

Earth Surface Processes and Landforms

Volumn 35, Issue 3, 2010, Pages 344-353

  Lynch, Kevin ^a   Jackson, Derek W T ^b   Cooper, J Andrew G ^b  

^a NATIONAL UNIVERSITY OF IRELAND   (Ireland)

^b UNIVERSITY OF ULSTER   (United Kingdom)

Author keywords

Aeolian sediment transport; Airflow; Coastal dunes; Dune shape

Indexed keywords

BEACHES; BUDGET CONTROL; FLOW SEPARATION; LONG TERM EVOLUTION (LTE); SEDIMENT TRANSPORT; SEDIMENTATION;

AIRFLOW; COASTAL DUNE; DESCRIPTIVE STATISTICS; DUNE SHAPE; RECIRCULATION CELLS; SMOOTH TRANSITIONS; ULTRASONIC ANEMOMETER; WIND ORIENTATIONS;

WIND;

AIRFLOW; COASTAL ZONE; DUNE; EOLIAN DEPOSIT; SEDIMENT BUDGET; SEDIMENT TRANSPORT; TOPOGRAPHY;

NORTHERN IRELAND; UNITED KINGDOM;

EID: 77949600106     PISSN: 01979337     EISSN: 10969837     Source Type: Journal    
DOI: 10.1002/esp.1925     Document Type: Article

References (38)

1. Arens SM. 1996. Patterns of sand transport on vegetated foredunes. Geomorphology 17: 339-350.
2. Arens SM, van Kaam-Peters HME, van Boxel JH. 1995. Air-flow over foredunes and implications for sand transport. Earth Surface Pro- cesses and Landforms 20: 315-332.
3. Armaly BF, Durst F, Pereira JCF, Schonung B. 1983. Experimental and theoretical investigation of backward-facing step flow. Journal of Fluid Mechanics 127: 473-496.
4. Barkley D, Gomes MGM, Henderson RD. 2002. Three-dimensional instability in flow over a backward-facing step. Journal of Fluid Mechanics 473: 167-190. 10.1017/s002211200200232x.
5. Carter RWG, Stone GW. 1989. Mechanisms associated with the erosion of sand dune cliffs, Magilligan, Northern-Ireland. Earth Surface Processes and Landforms 14: 1-10.
6. Carter RWG, Wilson P. 1990. The geomorphological, ecological and pedological development of coastal foredunes at Magilligan Point, Northern Ireland. In Coastal Dunes: Form and Process, Nordstrom KF, Psuty N, Carter RWG (eds). Wiley: Chichester; 129-157.
7. Frank A, Kocurek G. 1996a. Toward a model for airflow on the lee side of aeolian dunes. Sedimentology 43: 451-458.
8. Frank AJ, Kocurek G. 1996b. Airflow up the stoss slope of sand dunes: limitations of current understanding. Geomorphology 17: 47-54.
9. Gares PA, Davidson-Arnott RGD, Bauer BO, Sherman DJ, Carter RWG, Jackson DWT, Nordstrom KF. 1996. Alongshore variations in aeolian sediment transport: Carrickfinn Strand, Ireland. Journal of Coastal Research 12: 673-682.
10. Hesp P. 2002. Foredunes and blowouts: initiation, geomorphology and dynamics. Geomorphology 48: 245-268.
11. Hesp PA. 2005. Flow reversal and dynamics of foredunes and climb- ing dunes on a leeward east coast, New Zealand. Coasts Under Stress 141: 123-134.
12. Hesp PA, Davidson-Arnott R, Walker IJ, Ollerhead J. 2005. Flow dynamics over a foredune at Prince Edward Island, Canada. Geo- morphology 65: 71-84.
13. Jackson DWT, Cooper JAG, del Rio L. 2005. Geological control of beach morphodynamic state. Marine Geology 216: 297-314.
14. Jackson PS, Hunt JCR. 1975. Turbulent wind flow over a low hill.Quarterly Journal of the Royal Meteorological Society 101: 929-955.
15. Kaiktsis L, Karniadakis GE, Orszag SA. 1991. Onset of three-dimensionality, equilibria, and early transition in flow over a backward-facing step. Journal of Fluid Mechanics 231: 501-528.
16. Le H, Moin P, Kim J. 1997. Direct numerical simulation of turbulent flow over a backward-facing step. Journal of Fluid Mechanics 330: 349-374.
17. Lynch K, Jackson DWT, Cooper JAG. 2009. Foredune accretion under offshore winds. Geomorphology 105: 139-149.
18. Lynch K, Jackson DWT, Cooper JAG. 2008. Aeolian fetch distance and secondary airflow effects: the influence of micro-scale variables on meso-scale foredune development Earth Surface Processes and Landforms 33: 991-1005. DOI: 10.1002/esp.1582.
19. McKenna Neuman C, Lancaster N, Nickling WG. 2000. The effects of unsteady winds on sediment transport on the stoss slope of a trans- verse dune, Silver Peak, NV, USA. Sedimentology 47: 211-226.
20. Nordstrom KF, Bauer BO, DavidsonArnott RGD, Gares PA, Carter RWG, Jackson DWT, Sherman DJ. 1996. Offshore aeolian transport across a beach: Carrick Finn Strand, Ireland. Journal of Coastal Research 12: 664-672.
21. Nordstrom KF, Jackson NL, Klein AHF, Sherman DJ, Hesp PA. 2006. Offshore aeolian transport across a low foredune on a developed barrier island. Journal of Coastal Research 22: 1260-1267.
22. Parsons DR, Walker IJ, Wiggs GFS. 2004a. Numerical modelling of flow structures over idealized transverse aeolian dunes of varying geometry. Geomorphology 59: 149-164.
23. Parsons DR, Wiggs GFS, Walker IJ, Ferguson RI, Garvey BG. 2004b. Numerical modelling of airflow over an idealized transverse dune. Environmental Modelling & Software 19: 153-162.
24. Psuty NP. 2005. Coastal foredune development under a diurnal wind regime, Paracas, Peru. Journal of Coastal Research SI 42: 68-73.
25. Raupach MR, Finnigan JJ. 1997. The influence of topography on meteorological variables and surface-atmosphere interactions.Journal of Hydrology 190: 182-213.
26. Schatz V, Herrmann HJ. 2006. Flow separation in the lee side of transverse dunes: a numerical investigation. Geomorphology 81: 207-216.
27. Sherman DJ, Bauer BO. 1993. Dynamics of beach-dune systems. Progress in Physical Geography 17: 413-447.
28. Svasek JN, Terwindt JH. 1974. Measurements of sand transport by wind on a natural beach. Sedimentology 21: 311-322.
29. Sweet ML, Kocurek G. 1990. An empirical model of aeolian dune lee-face airflow. Sedimentology 37: 1023-1038.
30. Taylor PA, Mason PJ, Bradley EF. 1987. Boundary-layer flow over low hills. Boundary-Layer Meteorology 39: 107-132.
31. van Boxel JH, Arens SM, Van Dijk PM. 1999. Aeolian processes across transverse dunes. I: Modelling the air flow. Earth Surface Processes and Landforms 24: 255-270.
32. Walker IJ. 1999. Secondary airflow and sediment transport in the lee of a reversing dune. Earth Surface Processes and Landforms 24: 437-448.
33. Walker IJ, Nickling WG. 2002. Dynamics of secondary airflow and sediment transport over and in the lee of transverse dunes. Progress in Physical Geography 26: 47-75.
34. Walker IJ, Nickling WG. 2003. Simulation and measurement of surface shear stress over isolated and closely spaced transverse dunes in a wind tunnel. Earth Surface Processes and Landforms 28: 1111-1124.
35. Walker IJ, Hesp PA, Davidson-Arnott RGD, Ollerhead J. 2006. Topo- graphic steering of alongshore airflow over a vegetated foredune: Greenwich Dunes, Prince Edward Island, Canada. Journal of Coastal Research 22: 1278-1291.
36. Walker IJ, Hesp PA, Davidson-Arnott RGD, Bauer BO, Namikas SL, Ollerhead J. 2009. Responses of three-dimensional flow to varia- tions in the angle of incident wind and profile form of dunes: Greenwich Dunes, Prince Edward Island, Canada. Geomorphology 105: 127-138. 10.1016/j.geomorph.2007.12.019.
37. Wang XM, Dong ZB, Qu JJ, Zhang JW, Zhao AG. 2003. Dynamic processes of a simple linear dune - a study in the Taklimakan Sand Sea, China. Geomorphology 52: 233-241.
38. Wiggs GFS, Livingstone I, Warren A. 1996. The role of streamline curvature in sand dune dynamics: evidence from field and wind tunnel measurements. Geomorphology 17: 29-46.