145 resultados para Conterminous United States Mineral Assessment Program.
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Shipping list no.: 91-436-P (pt. [1]).
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"April 27, and May 4, 9, and 11, 1995"--Pt. 2.
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"June 29, 1987"--Pt. 4.
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"Serial no. 97-H17."
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Includes index.
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Shipping list no.: 96-0069-P (pt. [1]); 96-0230-P (pt. 2).
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Item 1040-A, 1040-B (microfiche).
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Date stamped on cover.
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Henry White, chairman of the delegation.
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Shipping list no.: 97-0097-P.
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Shipping list no.: 2011-0124-P.
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Each part also has special subtitle.
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At head of title: Environmental Impact Research Program
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Along most of the U.S. east and gulf coasts from Long Island to the Mexican Border, bottom profiles extending over the Inner Continental Shelves normal from the coast display a characteristic two-sector shape. Near the coast, the 'shoreface' profile sector is steep and concave-up; the seaward 'ramp' sector is planar with a gradual slope away from the coast. As part of the Beach Evaluation Program at this Center, 9 profiles extending from the coast 30.5 km (19 miles) seaward at each of 49 localities were averaged to mathematically characterize the profiles and to develop and test criteria for discriminating among groups of profiles. Results indicate Inner Continental Shelf profiles can be mathematically defined by 4 parameters: a = ramp slope (0 - 0.00107); b = depth of the ramp at the shoreline, when the ramp is extended as a straight line below the shoreface sector (0 - 24.7 meters, 0 - 81 feet); c = distance from the shoreline to the shoreface-ramp boundary (0.2 - 20.6 km, 0.12 - 12.9 miles); and f = index of concavity of the shoreface sector (0.21 - 1.72). Values in parentheses are the range of values obtained for the 49 averaged profiles. An equation was developed to define bottom depth as a function of distance from shore incorporating these four parameters. Computed depths using the equation were found to be generally within 5% of actual profile depths. In most cases, no relationship was found between the geometric characteristics of the shoreface and the ramp.
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At head of title: A summary of current program and preliminary report of progress.