981 resultados para Spring-neap Tides
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Beach profile lines at 21 near-evenly spaced intervals along Holden Beach, North Carolina, between Lockwoods Folly and Shallotte Inlets, were measured from November 1970 to December 1974. These have been analyzed to determine the spatial and temporal variabilities on long-term, seasonal, and short-term scales. Profile lines near the inlets showed the greatest variability in mean sea level (MSL) position, above MSL volume, foreshore slope, and profile envelope. This variability near Lockwoods Folly Inlet was partly enhanced by artificial nourishment at profile line 2. Temporary, low-cost shore protection devices (e.g., sandbag groins) were constructed near that inlet during part of the study. No other modifications or activities that affected beach processes were known to occur during the study period. The central part of Holden Beach was studied separately because of the high variability of the inlet sections at either end of the island. Foreshore slopes along this reach increased from an average of 1:30 at the east end to 1:17 at the west. A seasonal change in above MSL volume indicates loss of sand during autumn and winter, and gain during spring and summer. Changes in MSL shoreline intercept and above MSL volume were highly variable during the study.
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Disbound Original Held in Oak Street Library Facility.
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Includes geological map of southeast section of England.
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List of "Authorities" at end of each subject.
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National Highway Traffic Safety Administration, Vehicle Engineering Research Division, Washington, D.C.
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Shipping list no.: 99-0209-P.
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"February 1991."
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Mode of access: Internet.
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Mode of access: Internet.
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Composed for harp.
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Pl. no.: 13763.
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National Highway Traffic Safety Administration, Office of Driver and Pedestrian Programs, Washington, D.C.
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At head of title: Circuit Court of the United States. District of New Hampshire.
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"February 1981."
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Adriaen van de Venne; 5 25/32 in.x 1 ft. 2 11/16 in.; oil on panel