IS. SECURITY CLASS, (ol thia report) UNCLASSIFIED ISa. DECLASSIFICATION/ DOWNGRADING SCHEDULE 16. DISTRIBUTION STATEMENT (ol IhU Report) Approved for public release; distribution unlimited. 17. DISTRIBUTION STATEMENT (ol the abitract entered In Block 30, It ditlerent Irem Report) 18. SUPPLEMENTARY NOTES 19. KEY WORDS (Continue. Remote sensing Coastal engineering Morphological changes Multispectral scanner aaary and Identify by block number) ERTS North Carolina coast Satellite imagery Sediment 20. ABSTRACT (Continue on ravwi* tide It neceemary and Identify by block number) Unenhanced imagery recorded by the multispectral scanner (MSS) of the NASA Earth Resources Technology Satellite (ERTS-1) was analyzed to determine how satellite imagery may be applied to specific coastal engineering problems. The study area is a segment of the North Carolina coast comprising Wrightsville Beach, Masonboro Inlet, Masonboro Beach, Caroiina"Beach Inlet, and Carolina 'Beach, which are areas of ongoing research byTERC. Analysis was supplemented by underf light imagery supplied by NASA and ground-truth data.
Theoretical considerations of "beach "behavior are often hampered "by a lack of systematically obtained data sets which reflect the beach environment. For specific studies, lack of time and money often prevent the collection of such data sets. Thus, any opportunity for the collection of such data, on a routine basis, should be fully exploited lIn 1967 9 the U S Army Corps of Engineers and the State of California initiated a cooperative program to collect empirical data at selected locations along the California coast. The objective was to establish a reservoir of repetitive, systematic observations, by qualified personnel, with the hope of securing a better understanding of the physical characteristics of the California shore and the littoral processes occurring there.Once a sufficient volume of data has been collected, analysis of the data will begin with the aim of determining meaningful correlations between the various recorded parameters.
An annotated bibliography on groins, compiled by Balsillie and Bruno (1972J, has provided the background for this paper. A review of functional design criteria is presented including groin length, height, spacing, permeability-adjustability, and orientation. A discussion of coastal processes and their relationship to groin design and effectiveness is" also given.
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