This GIS line data set represents depth contours (bathymetry) for the offshore areas around the Florida Keys, from Fowey Rocks to American Shoal, as shown in the National Oceanic and Atmospheric Administration (NOAA) Nautical Chart 11450. FWRI staff digitized the contours off of a clean, wrinkle-free paper chart, using the most current version of the chart that was available in 1997.
To represent marine depth contours, primarily for small-scale (large area) cartographic purposes.
Prior to July 1, 2004, the Fish and Wildlife Research Institute (FWRI) was known as the Florida Marine Research Institute (FMRI). The institute name has not been changed in historical data sets or references to work completed by the Florida Marine Research Institute. The institute name has been changed in references to ongoing research, new research, and contact information. These data are not to be used for navigation. User should be aware that later versions of the source charts may be available and that contours may have changed. Consult the most recent paper or digital charts available and appropriate coast pilot.
date the data were digitized
Acknowledgement of the FWC-FWRI (Florida Fish and Wildlife Conservation Commission-Fish and Wildlife Research Institute) as the data source would be appreciated in any products developed from these data, and such acknowledgment as is standard for citation and legal practices for data source is expected by users of this data. Please cite the original metadata when using portions of the record to create a similar record of slightly altered data, such as reprojection. If any data are modified or adjusted, please share the edited information with FWC. Users should be aware that comparison with other data sets for the same area from other time periods may be inaccurate due to inconsistencies resulting from changes in mapping conventions, data collection, and computer processes over time. FWC shall not be liable for improper or incorrect use of this data. These data are not legal documents and are not to be used as such. This is not a survey data set and should not be utilized as such. These data are not to be used for navigation.
Fish and Wildlife Research Institute 100 Eighth Avenue Southeast
All entities and attributes have been identified and documented.
Data are logically consistent.
Not all contours present on the chart are included in the vector data set
"Good" positional accuracy.
The source chart (11450) provided depth contours measured in fathoms
Contours digitized in ArcInfo off NOAA Nautical Chart 11450 at a 1:180,000 scale. Additional attributes were added, to display depth values in both fathoms and feet.
Fish and Wildlife Research Institute 100 Eighth Avenue Southeast
Metadata imported.
NOAA Nautical Chart number- value is 11450.
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NOAA Nautical Chart
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True or false for the condition depth = 1200 feet. 0 = false, 1 = true.
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false
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true
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True or false for the condition depth = 18 feet. 0 = false, 1 = true.
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false
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true
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True or false for the condition depth = 1800 feet. 0 = false, 1 = true.
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false
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true
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True or false for the condition depth = 2400 feet. 0 = false, 1 = true.
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false
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true
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True or false for the condition depth = 30 feet. 0 = false, 1 = true.
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false
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true
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True or false for the condition depth = 300 feet. 0 = false, 1 = true.
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false
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true
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True or false for the condition depth = 60 feet. 0 = false, 1 = true.
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false
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true
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True or false for the condition depth = 600 feet. 0 = false, 1 = true.
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false
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true
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True or false for the condition chart border. 0 = false, 1 = true.
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false
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true
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Depth of contour in fathoms. 999 = chart border 3 = 3 fathoms or 18 feet 5 = 5 fathoms or 30 feet 10 = 10 fathoms or 60 feet 50 = 50 fathoms or 300 feet 100 = 100 fathoms or 600 feet 200 = 200 fathoms or 1200 feet 300 = 300 fathoms or 1800 feet 400 = 400 fathoms or 2400 feet
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Chart border
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3 fathoms or 18 feet
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5 fathoms or 30 feet
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10 fathoms or 60 feet
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50 fathoms or 300 feet
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100 fathoms or 600 feet
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200 fathoms or 1200 feet
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300 fathoms or 1800 feet
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400 fathoms or 2400 feet
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Depth of contour in feet. 999 = chart border 18 = 18 feet or 3 fathoms 30 = 30 feet or 5 fathoms 60 = 60 feet or 10 fathoms 300 = 300 feet or 50 fathoms 600 = 600 feet or 100 fathoms 1200 = 1200 feet or 200 fathoms 1800 = 1800 feet or 300 fathoms 2400 = 2400 feet or 400 fathoms
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Chart border
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18 feet or 3 fathoms
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30 feet or 5 fathoms
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60 feet or 10 fathoms
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300 feet or 50 fathoms
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600 feet or 100 fathoms
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1200 feet or 200 fathoms
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1800 feet or 300 fathoms
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2400 feet or 400 fathoms
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Internal value used by Spatial Database Engine.
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Map scale of the chart. Value is 180000.
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Map scale of the chart
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Internal value used by Spatial Database Engine.
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The outside boundary length (in meters) of each polygon. An internal value used by ArcINFO.
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Each contour contains the attributes FATHOM and FEET, which represent the shallowest contour depth in the respective units. A value of 999 indicates the line is a chart border. The D-coding attributes represent contour values in feet only.
U. S. Dept. of Commerce, National Ocean and Atmospheric Service, National Ocean Service. NOAA Nautical Chart 11450.
Fish and Wildlife Research Institute 100 Eighth Avenue Southeast
This data set is in the public domain, and the recipient may not assert any proprietary rights thereto nor represent it to anyone as other than a FWC-FWRI produced data set; it is provided "as-is" without warranty of any kind, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. The user assumes all responsibility for the accuracy and suitability of this data set for a specific application. In no event will the staff of the Fish and Wildlife Research Institute be liable for any damages, including lost profits, lost savings, or other incidental or consequential damages arising from the use of or the inability to use this data set.
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Fish and Wildlife Research Institute 100 Eighth Avenue Southeast