924 resultados para Food and Agriculture Organization of the United Nations.
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Published in accordance with the Sundry civil act of June 6, 1900.
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Mode of access: Internet.
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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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Vols for 1943- "NAVPERS 15,018".
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Mode of access: Internet.
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Mode of access: Internet.
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Latest issue consulted: Vol. 38, no. 1 (Dec. 31, 2003).
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"The text followed ... is that of the edition of 1848, published in Philadelphia ... The original work had no index ... this deficiency has been supplied."
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"April 1998."
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Mode of access: Internet.
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Cover title.
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Some nos. published in House Document series.
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"Extracted from U. S. Fish Commission Report for 1900."