Paper & electronic charts lrg

Grunt Productions 2004

The Making, & Using ofThe Making, & Using of Paper & Electronic ChartsPaper & Electronic Charts

A Brief By Lance Grindley


The commercial mariner doesThe commercial mariner does

The recreational boater doesThe recreational boater does

And even the fishermanAnd even the fisherman


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


Hypack Max Planning Software

River Plan

Survey PlanningSurvey Planning


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


Sounding PathSounding Path


Sounding Coverage

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

50m

100m


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


Nautical ChartNautical Chart

PhotogrammetryPhotogrammetry

BlueprintsBlueprints

SourceSource

Aids to NavigationAids to NavigationShorelineShoreline

ObstructionsObstructions

Chart Data SourcesChart Data Sources

WrecksWrecks

SoundingsSoundings


SOUNDINGSSOUNDINGS

AIDS TO NAVIGATIONAIDS TO NAVIGATION

BRIDGE CLEARANCESBRIDGE CLEARANCES

LANDMARKSLANDMARKS

DEPTH CONTOURSDEPTH CONTOURS

DANGERSDANGERS

GEOGRAPHIC NAMESGEOGRAPHIC NAMES

Information on a ChartInformation on a Chart


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


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


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


ENC >>>>>>>> vs.<<<<<<<< RasterENC >>>>>>>> vs.<<<<<<<< Raster

Normal View

Zoomed View

More “Pixelation”More “Pixelation”Less “Pixelation”Less “Pixelation”


ENC AttributionENC Attribution


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


0 – 6 feet6 – 12 feet12 – 24 feet24 – 30 feet

30 – 500 feet


0 – 6 feet6 – 12 feet

12 – 24 feet24 – 30 feet

30 – 500 feet


0 – 6 feet6 – 12 feet

12 – 24 feet24 – 30 feet

30 – 500 feet


0 – 6 feet6 – 12 feet12 – 24 feet24 – 30 feet30 – 500 feet

Vessel Draft Effect on DisplayVessel Draft Effect on Display










Change Analysis - Cleveland, OHChange Analysis - Cleveland, OH

Chart overlayed in green


Do you think he Do you think he knows what's knows what's

coming around coming around the sides ?the sides ?

Technology

Paper & electronic charts lrg