paper & electronic charts lrg
DESCRIPTION
TRANSCRIPT
Grunt Productions 2004
The Making, & Using ofThe Making, & Using of Paper & Electronic ChartsPaper & Electronic Charts
A Brief By Lance Grindley
Grunt Productions 2004
The commercial mariner doesThe commercial mariner does
The recreational boater doesThe recreational boater does
And even the fishermanAnd even the fisherman
Grunt Productions 2004
18551855
19191919
16501650
18671867 20012001
Grunt Productions 2004All examples at the same line spacingAll examples at the same line spacing
1940 - 1980 1940 - 1980 Pre-1940Pre-1940 1980 - Present1980 - Present
Soundings obtainedSoundings obtainedby hand lead-lineby hand lead-line
Soundings obtainedSoundings obtainedby single-beamby single-beamecho sounderecho sounder
Multi-beam Side Scan Sonar
Soundings obtainedSoundings obtainedby side scan sonarby side scan sonarand multi-beamand multi-beam
resulting in 100% resulting in 100% bottom coveragebottom coverage
Grunt Productions 2004
Hypack Max Planning Software
River Plan
Survey PlanningSurvey Planning
Grunt Productions 2004
Real-time sounding plotReal-time sounding plot
Vessel positionVessel position
Left/right steering indicatorLeft/right steering indicator
Navigation informationNavigation information
On-line DataOn-line DataAcquisitionAcquisition
Grunt Productions 2004
Sounding PathSounding Path
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Sounding Coverage
100m line spacing 50m between selected soundings coverage to 1m curve
50m
100m
Grunt Productions 2004
VESSEL DRAFT
SOUND VELOCITY
CHART DATUM
WATER LEVEL (corrected to chart datum)
SETTLEMENT AND SQUAT OF VESSEL
GPS/DGPS POSITIONING
Anatomy of a SoundingAnatomy of a Sounding
Grunt Productions 2004
Nautical ChartNautical Chart
PhotogrammetryPhotogrammetry
BlueprintsBlueprints
SourceSource
Aids to NavigationAids to NavigationShorelineShoreline
ObstructionsObstructions
Chart Data SourcesChart Data Sources
WrecksWrecks
SoundingsSoundings
Grunt Productions 2004
SOUNDINGSSOUNDINGS
AIDS TO NAVIGATIONAIDS TO NAVIGATION
BRIDGE CLEARANCESBRIDGE CLEARANCES
LANDMARKSLANDMARKS
DEPTH CONTOURSDEPTH CONTOURS
DANGERSDANGERS
GEOGRAPHIC NAMESGEOGRAPHIC NAMES
Information on a ChartInformation on a Chart
Grunt Productions 2004
Raster Nautical Charts Raster Nautical Charts
Scans of the Paper ChartsScans of the Paper Charts
Requires a computer onboardRequires a computer onboard
Do not meet the MCA carriageDo not meet the MCA carriage requirementsrequirements
Very useful Navigation ToolVery useful Navigation Tool
Grunt Productions 2004
Basic Navigation ScreenBasic Navigation Screen
With Weather OverlayWith Weather Overlay With 3-d OverlayWith 3-d Overlay
Examples of RasterExamples of Raster Nautical ChartNautical ChartFunctionalityFunctionality
Grunt Productions 2004
Electronic Navigational ChartsElectronic Navigational Charts
Vector based navigational chartVector based navigational chart A database of chart featuresA database of chart features Compiled from largest scale sourceCompiled from largest scale source
BenefitsBenefits
Clutter is reducedClutter is reduced Data base is created from sourceData base is created from source Most important data created and Most important data created and released firstreleased first May be incrementally updatedMay be incrementally updated
Grunt Productions 2004
ENC >>>>>>>> vs.<<<<<<<< RasterENC >>>>>>>> vs.<<<<<<<< Raster
Normal View
Zoomed View
More “Pixelation”More “Pixelation”Less “Pixelation”Less “Pixelation”
Grunt Productions 2004
ENC AttributionENC Attribution
Grunt Productions 2004
Depth AreasDepth Areas
0 – 6 feet6 – 12 feet12 – 24 feet24 – 30 feet30 – 500 feet
Safety contour set to 10 feetSafety contour set to 10 feetBlue area is less than 12 feet deepBlue area is less than 12 feet deep
Depth AreasDepth Areas
0 – 6 feet6 – 12 feet12 – 24 feet24 – 30 feet
30 – 500 feet
Depth AreasDepth Areas
0 – 6 feet6 – 12 feet
12 – 24 feet24 – 30 feet
30 – 500 feet
Depth AreasDepth Areas
0 – 6 feet6 – 12 feet
12 – 24 feet24 – 30 feet
30 – 500 feet
Depth AreasDepth Areas
0 – 6 feet6 – 12 feet12 – 24 feet24 – 30 feet30 – 500 feet
Vessel Draft Effect on DisplayVessel Draft Effect on Display
Grunt Productions 2004
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Grunt Productions 2004
Change Analysis - Cleveland, OHChange Analysis - Cleveland, OH
Chart overlayed in green
Grunt Productions 2004
Do you think he Do you think he knows what's knows what's
coming around coming around the sides ?the sides ?