Maps for America: Cartographic Products of the U.S. Geological Survey and OthersU.S. Department of the Interior, Geological Survey, 1988 - 265 من الصفحات |
طبعات أخرى - عرض جميع المقتطفات
عبارات ومصطلحات مألوفة
15-minute maps Accuracy Standards aerial photographs agencies Alaska areas buildings Center civil townships coastal contour interval contour lines coordinate corners cover maps Creek Cultural Features datum divided into counties elevations Federal feet FIGURE Forest Geological Survey Cartographic graphic grid highway horizontal inch Island labeled Lake land cover landmark Landsat latitude longitude map scale map series Map showing Mapping Program meridian metric metric system mi² miles monuments MPRR names National Map National Ocean National Ocean Service National Park nautical charts navigation North parallels planimetric plat Pond projection public-land Puerto Rico quadrangle quadrangle maps railroad revision River roads rock routes Service shown slope Stream subdivided surface Survey Cartographic Products symbol terrain tion topographic maps Tower townships Trail Transverse Mercator U.S. Geological Survey United Universal Transverse Mercator USGS vertical zone
مقاطع مشهورة
الصفحة 146 - States territorial sea and extends inland from the shorelines to the extent necessary to control shorelands. the uses of which have a direct and significant impact on the coastal waters...
الصفحة 164 - Nonforested wetland 71 Dry salt flats 72 Beaches 73 Sandy areas other than beaches 74 Bare exposed rock 75 Strip mines, quarries, and gravel pits 76 Transitional areas 77 Mixed barren land...
الصفحة 104 - Vertical accuracy, as applied to contour maps on all publication scales, shall be such that not more than 10 percent of the elevations tested shall be in error more than one-half the contour interval In checking elevations taken from the map, the apparent vertical error may be decreased by assuming a horizontal displacement within the permissible horizontal error for a map of that scale.
الصفحة 104 - This map is an enlargement of a 1:20,000-scale map drawing," or "This map is an enlargement of a 1:24,000-scale published map." 7. To facilitate ready interchange and use of basic information for map construction among all federal mapmaking agencies, manuscript maps and published maps, wherever economically feasible and consistent with the uses to which the map is to be put, shall conform to latitude and longitude boundaries, being 15 minutes of latitude and longitude, or 7.5 minutes, or 3V< minutes...
الصفحة 104 - ... 1. Horizontal accuracy. For maps on publication scales larger than 1:20,000, not more than 10 percent of the points tested shall be in error by more than 1/30 inch, measured on the publication scale; for maps on publication scales of 1:20,000 or smaller, 1/50 inch. These limits of accuracy shall apply in all cases to positions of well-defined points only.
الصفحة 104 - United States National Map Accuracy Standards With a view to the utmost economy and expedition in producing maps which fulfill not only the broad needs for standard or principal maps, but also the reasonable particular needs of individual agencies, standards of accuracy for published maps are defined as follows: 1 . Horizontal accuracy. For maps on publication scales larger than...
الصفحة 104 - The accuracy of any map may be tested by comparing the positions of points whose locations or elevations are shown upon it with corresponding positions as determined by surveys of a higher accuracy. Tests shall be made by the producing agency, which shall also determine which of its maps are to be tested and the extent of the testing. 4. Published maps meeting these accuracy requirements shall note this fact on their legends, as follows: "This map complies with National Map Accuracy Standards.
الصفحة 164 - Residential 12 Commercial and Services 13 Industrial 14 Transportation, Communications and Utilities 15 Industrial and Commercial Complexes 16 Mixed Urban or Built-up Land 17 Other Urban or Built-up Land...
الصفحة 169 - In the broadest sense, the measurement or acquisition of information of some property of an object or phenomenon, by a recording device that is not in physical or intimate contact with the object or phenomenon under study...
الصفحة 146 - coastal zone" means the coastal waters (including the lands therein and thereunder) and the adjacent shorelands (including the waters therein and thereunder), strongly influenced by each other and in proximity to the shorelines of the several coastal states, and includes islands, transitional and intertidal areas, salt marshes, wetlands, and beaches.