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Grunt Productions 2007
Electronic Chart Systems for
Training
An introduction to the use of electronic
navigation systems a...
Grunt Productions 2007
Covering:
 Types of electronic chart
 Brief description of display systems
 Advantages of electr...
Grunt Productions 2007
ELECTRONIC CHART
TYPES
Grunt Productions 2007
Raster Navigation Charts (RNC)
 Produced by “scanning” the master
components used in the productio...
Grunt Productions 2007
RASTER NAVIGATION CHART
Grunt Productions 2007
Raster Considerations
 Advantages
 Easily recognised
format
 Quick and inexpensive
to produce
 ...
Over Zooming
Warning
Grunt Productions 2007
Electronic Navigation Charts (ENC)
also known as Vector Charts
 Produced by giving digital values ...
ADMIRALTY ELECTRONIC
NAVIGATION CHART (ENC)
Grunt Productions 2007
Vector Considerations
 Advantages
 Tailored display, which
permits layers of
information to be di...
Grunt Productions 2007
RASTER CHART OF THE APPROACHES
TO MILFORD HAVEN
Grunt Productions 2007
ENC LAYERS - BASE DISPLAY
BASIC TOPOGRAPHY
ENC OF THE
SAME AREA
Grunt Productions 2007
ENC LAYERS - STANDARD DISPLAY
TOPOGRAPHY + NAV AIDS (i.e. Lights)
Grunt Productions 2007
ENC - DISPLAY ALL
TOPOGRAPHY + NAV AIDS +
TEXT & SYMBOLOGY
Grunt Productions 2007
ENC @ SMALL SCALE
Grunt Productions 2007
ENC @ LARGER SCALE
Grunt Productions 2007
SAFE DEPTH SET
TO 8M
LIMITING DANGER LINE
CAN BE CHANGED
Grunt Productions 2007
SAFE DEPTH
CHANGED TO 15M
Electronic charts lrg
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Electronic charts lrg

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Transcript of "Electronic charts lrg"

  1. 1. Grunt Productions 2007 Electronic Chart Systems for Training An introduction to the use of electronic navigation systems and UKHO electronic products A brief by Lance Grindley
  2. 2. Grunt Productions 2007 Covering:  Types of electronic chart  Brief description of display systems  Advantages of electronic chart systems
  3. 3. Grunt Productions 2007 ELECTRONIC CHART TYPES
  4. 4. Grunt Productions 2007 Raster Navigation Charts (RNC)  Produced by “scanning” the master components used in the production of the paper chart.  “Unintelligent” Data.  Additional “header” data is supplied with each chart, i.e. the Satellite position correction.  The UKHO product is known as Admiralty Raster Chart System (ARCS)
  5. 5. Grunt Productions 2007 RASTER NAVIGATION CHART
  6. 6. Grunt Productions 2007 Raster Considerations  Advantages  Easily recognised format  Quick and inexpensive to produce  Disadvantages  Cannot manipulate the display  Screen may appear cluttered  Cannot interrogate information  Over zooming may lead to dangerous assumptions
  7. 7. Over Zooming Warning
  8. 8. Grunt Productions 2007 Electronic Navigation Charts (ENC) also known as Vector Charts  Produced by giving digital values to every point on the chart  Conform to IHO standard S57  Enables computer to identify the object, portray it in the required form, place it in the correct position and provide information about its attributes  Intelligent data that can be interrogated  UKHO ENC product is known as ENC - PILOT
  9. 9. ADMIRALTY ELECTRONIC NAVIGATION CHART (ENC)
  10. 10. Grunt Productions 2007 Vector Considerations  Advantages  Tailored display, which permits layers of information to be displayed  Linked to much more information  Smart Data, as the user “zooms” in on a position, more detailed data can be displayed, i.e. more soundings  Disadvantages  Slow and expensive to produce  What you see may not be what you need
  11. 11. Grunt Productions 2007 RASTER CHART OF THE APPROACHES TO MILFORD HAVEN
  12. 12. Grunt Productions 2007 ENC LAYERS - BASE DISPLAY BASIC TOPOGRAPHY ENC OF THE SAME AREA
  13. 13. Grunt Productions 2007 ENC LAYERS - STANDARD DISPLAY TOPOGRAPHY + NAV AIDS (i.e. Lights)
  14. 14. Grunt Productions 2007 ENC - DISPLAY ALL TOPOGRAPHY + NAV AIDS + TEXT & SYMBOLOGY
  15. 15. Grunt Productions 2007 ENC @ SMALL SCALE
  16. 16. Grunt Productions 2007 ENC @ LARGER SCALE
  17. 17. Grunt Productions 2007 SAFE DEPTH SET TO 8M LIMITING DANGER LINE CAN BE CHANGED
  18. 18. Grunt Productions 2007 SAFE DEPTH CHANGED TO 15M
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