Making, Maintaining

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Making, Maintaining Using Paper Electronic
Charts
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Charts..who needs em?
The commercial mariner does The recreational
boater does And even the fisherman
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Charts Through The Ages
1855
1650
1867
1919
2001
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Historic Coast Survey Vessels
The Present NOAA Hydrographic Fleet
Survey Launches
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Pre-1940
1980 - Present
1940 - 1980
Multi-beam
Side Scan Sonar
Soundings obtained by side scan sonar and
multi-beam resulting in 100 bottom coverage
Soundings obtained by single-beam echo sounder
Soundings obtained by hand lead-line
All examples at the same line spacing
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Survey Planning
Hypack Max Planning Software
Lower Detroit River Plan
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Vessel position
On-line Data Acquisition
Real-time sounding plot
Left/right steering indicator
Navigation information
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Sounding Path
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Sounding Coverage

• 100m line spacing
• 50m between selected soundings
• coverage to 1m curve

100m
50m
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Anatomy of a Sounding
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Sea level measured at Rimouski, Quebec
Chart Datums based on the IGLD 1985
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Chart Data Sources
Soundings
Aids to Navigation
Shoreline
Wrecks
Obstructions
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SOUNDINGS
AIDS TO NAVIGATION
DEPTH CONTOURS
BRIDGE CLEARANCES
DANGERS
GEOGRAPHIC NAMES
LANDMARKS
Information on a Chart
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Chart Maintenance
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Raster Nautical Charts
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Examples of Raster Nautical Chart Functionality
Basic Navigation Screen
With 3-d Overlay
With Weather Overlay
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Electronic Navigational Charts
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ENC gtgtgtgtgtgtgtgt vs.ltltltltltltltlt Raster
Normal View
Zoomed View
More Pixelation
Less Pixelation
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ENC Attribution
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Vessel Draft Effect on Display
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Forty Major U.S. Commercial Ports
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Electronic Navigational Charts
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Change Analysis - Cleveland, OH
Chart overlayed in green
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http//chartmaker.ncd.noaa.gov/MCD/chartno1.htm
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http//chartmaker.ncd.noaa.gov/STAFF/NCUM/ncum.htm
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Chart Ordering Information http//chartmaker.ncd.n
oaa.gov/MCD/distrib.htm
Nautical Chart No. 1 (symbols, abbreviations and
terms) http//chartmaker.ncd.noaa.gov/MCD/chartno1
.htm
Nautical Chart Users Manual http//chartmaker.ncd.
noaa.gov/STAFF/NCUM/ncum.htm
NOAA Photo Library http//www.photolib.noaa.gov/in
dex.html