Erosion hazard assessment along the Capitolo coast (Monopoli, southern Italy) Authors: Indiveri Angela, Marsico Antonella, Pennetta Luigi Dipartimento di Scienze della Terra e Geoambientali - Università degli Studi di Bari "Aldo Moro", Italy email:
[email protected] ;
[email protected]
The main map shows levels of hazard to consider for best beach management policy.Others maps report results from the analysis carried out: higher waves direction, digital shoreline analysis and preservation state of dunes. Processing data in a environmental matrix brought to the assessment of the coastal erosion hazard of Capitolo beach.
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LOCATION MAP A
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MONOPOLI
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HIGHER WAVES DIRECTION
The rose diagram of Monopoli buoy shows the main winds direction and the waves height. The red box highlights the wind direction causing maximum wave height. The names of winds that characterize the Mediterranean sea are shown all around the diagram.
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Legend Drainage network
Ban area for establishments
Erosion hazard levels for land grants management C1 - High hazard
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C2 - Medium hazard
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DATUM - WGS 1984 projection: Transverse Mercator ZONE 33, Northern Hemisphere Base Map: CTR 2006
STATE OF PRESERVATION OF THE DUNES 17°20'30"E
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Dunes Status
Contourline (meters)
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Litology
Fluvial erosion scarp
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"Calcarenite di Gravina" Formation
Bathymetric contourline (meters)
Alluvional deposits
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Sand
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DIGITAL SHORELINE ANALYSIS SISTEM
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Geomorphological map and actual preservation state of dunes along the Capitolo beach. (Available online at: www.sit.puglia.it, last accessed 15 February 2012)
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Recent evolutionary trend (1994-2005)
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Actual evolutionary trend (2005-2010)
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BASELINE
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1994 coastline
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2005 coastline 2010 coastline 40°54'0"N
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"Digital Shoreline Analysis System" map, graphically shows the methodology used by the DSAS (E. Robert Thieler, Emily A.Himmelstoss, Jessica L. Zichichi, and Tara L. Miller-U.S. Geological Survey) to obtain the parameters represented in the graphs on the left (Net Shoreline Movement ( NSM ), that reports the distance in meters between the youngest coastline and the oldest one and End Point Rate (EPR) that provides an average rate of evolution annual coasts in the form of fast forward or backward).The coastline was divided into transects developed from a baseline.The tool, starting from the points of intersection of the coastline with the transects,calculates the distance between shorelines on at different times.In the graphs the x-axis report the transects with their ID numbers showed in the DSAS map. Î
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