| What
is a NOAA Chart? |
The NOAA Charts on Atlas are nautical charts. As stated
by the NOAA Mapfinder Web site:
"Nautical
charts are fundamental navigational tools required for
safe passage of waterborne commerce. They can also serve
as base maps for resource management and shoreline development
planning. Charts depict the location of the shoreline,
minimum water depths, aids to navigation, hazards to
navigation and much more. They are the primary product
of the NOS Coast Survey."
For
more information about NOAA Navigational Charts, visit
http://mapfinder.nos.noaa.gov/mapfinderHTML3/surround/charts/charts.html
For more information about other products avaiable from
NOAA, visit the NOAA NOS Mapfinder at
http://mapfinder.nos.noaa.gov/ |
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| What
areas of the state are covered? |
The NOAA charts on Altas cover mostly the coastal areas
and the Mississippi River. |
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| What
is the format of the charts? |
The charts are stored as black and white TIF files. They
do NOT include world files or Geotiff headers. The resolution
of the files vary. |
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| What
is the time period of the charts? |
Most
of the current charts are from 1852 to 1916. Only a few
are from 1995 to 2000. |
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| Atlas
shows NOAAG and NOAAS as two collections of NOAA charts.
What is the difference? |
The
NOAAG and NOAAS designations are Atlas designations
to distinguish the charts that cover large areas of
the Gulf of Mexico (NOAAG) from the charts that cover
a portion of Louisiana and surrounding states (NOAAS).. |
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| How
can I view the charts? |
Any program that can display a TIF file can view the charts.
However, GIS applications such as Intergraph Geomedia
and ESRI ArcView will NOT be able to register them since
there is no registration information. |
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How
do I get color digital charts?
-AND-
How do I get registered charts?
-AND-
How do I get more recent charts?
|
Visit the NOAA NOS Mapfinder site at
http://mapfinder.nos.noaa.gov/ for more information
about getting charts in color, for ordering paper versions,
and for obtaining georeferenced charts. Also, check this
site for information on NOAA charts and other products
for other parts of the United States. |
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