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11 Titles Match Your Query
Showing 1 through 11 of 11
1. Hydrographic Surveys [CGS_NCD_HYDROGR_SURV]
Hydrographic surveys are conducted by the National Ocean Service (NOS) to measure water depth. The measurements are used in the production of nautical charts. NOS nautical charts are compiled and ...


2. Wreck and Obstruction Data for the Pacific Ocean, Atlantic Ocean, and North America Coastlines [CGS_NCD_WRECK_OBSTR]
The Automated Wreck and Obstruction Information System (AWOIS) is an automated file that contains information on wrecks and obstructions in areas subject to NOS hydrographic surveys. The file contains ...


3. Multi Beam Bathymetric Maps [CGS_NCD_MULTI_BEAM_BATHM]
In March, 1983, President Reagan proclaimed the establishment of a U.S. Exclusive Economic Zone (EEZ) extending 200 miles from the baseline (generally the shoreline) from which the territorial sea ...


4. Bathymetric Maps, Bathymetric Fishing Maps, and Topographic Bathymetric Maps [CGS_NCD_BATHM_MAPS]
Bathymetric Maps, topographic maps of the sea floor, portray the size, shape, and distribution of underwater features through the use of depth contours and bathymetric data. These maps, which are ...


5. Aerial Photographs from NOAA/National Ocean Service [CGS_NCD_AERIAL_PHOTO]
Aerial Photographs and field survey data provide the basic data base for compiling coastal survey maps. The photographs consist of natural color, color infrared, black-and-white (panchromatic), and ...


6. Coastline of the U.S.A.: General Coastline, Tidal Shoreline, and Lengths of the Great Lakes Shorelines [CGS_NCD_COASTLINE]
GENERAL COASTLINE figures are lengths of general outline of the seacoast. Measurements were made with a unit measure of 30 minutes of latitude on charts as near the scale of 1:1,200,000 as possible. ...


7. Digital EEZ Bathymetric Data [CGS_NCD_DIGITAL_EEZ_BATHM]
The National Ocean Service (NOS) of the National Oceanic and Atmospheric Administration (NOAA) is now disseminating multibeam digital bathymetric data for the U.S. Exclusive Economic Zone (EEZ). These ...


8. Loran C Overlays for Bathymetric Maps [CGS_NCD_AIDS_NAVIG]
A navigation-related service provided by the Marine Chart Division are LORAN-C overlays for bathymetric maps. These overlays consist of LORAN-C lines drawn on a clear plastic material specifically ...


9. Nautical Charts Source Data [CGS_NCD_CHART_SOURCE]
This file contains the raw data used in the construction of Coast Survey Nautical Charts. Anything shown in those charts is traceable to an item in this file. Such data are frequently used in litigation, ...


10. Survey Request File: An Automated System for Tracking Requests for Hydrographic Data [CGS_NCD_SURVEY_REQUEST]
In October 1984 the National Ocean Service (NOS) implemented the SUrvey Request File (SURF), an automated PC-based system to track requests for hydrographic surveys and to establish quantifiable survey ...


11. Topographic Surveys [CGS_NCD_TOPOG_SURV]
NOS nautical charts are compiled and updated using aerial photographs and field surveys as a basis. In general, charts are compiled at a smaller scale than field survey sheets and reflect selected ...


Showing 1 through 11 of 11
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