NOAA - AUXILIARY PARTNERSHIP

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NOAA - AUXILIARYPARTNERSHIP
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Sources of Chart Maintenance
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Auxiliary Chart Updating Activities
Nautical Chart Corrections. Coast Pilot
Reports. Aeronautical Chart Corrections. Small
Craft Facility Reports. Adopt-A-Chart
Program. Navigational Range Line Surveys.
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Chart Scene Investigation

• Act like a CSI investigator . . .
• Be Complete dont miss any evidence to support
  your claim.
• Be Scientific take precise measurements.
  Identify your tools. Identify dates and times.
• Be Clear use concise language. Explain your
  observations in as few words as possible but
  still expressing your full meaning and
  descriptions.
• Photograph the scene clearly document how you
  took your photos. Make your photos prove your
  case.
• Be prompt. Report in a timely manner.
• Submit professional grade reports.

CSI
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• Look for Misspelled Geographic Names

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• Check for Incorrect Coloring.

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Shoreline Discrepancy on a Va. Beach
Observer walked the high water line with a DGPS
on Virginia Beach -new shoreline shown in red
(max discrepancy 100 yds)
Chart 12254 120,000
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• Check for Visual Aids Along the Shore

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• Has this Wreck Been Removed?

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for reporting wrecks

• Are visible charted wrecks still visible?
• If not, what happened to them?
• If salvaged, by whom and when?
• Get a copy of the documentation from the salvage
  company.
• This is the type of information that is required
  to get the wreck or obstruction taken off a
  nautical chart.

TIPS
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• Check Cables and Pipelines

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for chart updating.

• Charted landmarks should be investigated to
  insure that they are
• Still in existence.
• Are still useful as landmarks when viewed from
  seaward.
• Make recommendations regarding the deletion of
  charted landmarks and/or the addition of new
  landmarks.

TIPS
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for chart updating.

• Are charted overhead cables still there?
• Are there any new overhead obstructions?
• Rule of Thumb
• If an overhead obstruction crosses a waterway
  where there are soundings shown on a chart, the
  vertical clearance for the obstruction needs to
  be shown.

TIPS
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for chart updating.

• Interview other chart users in the area.
• Dive shops
• Marinas
• Charter fishermen
• Commercial vessel captains.
• Pilots
• Solicit local knowledge about
• Shoals
• New obstructions
• Uncharted wrecks or rocks.

TIPS
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Navigational RangesDefinition

• Two or more objects in line are said to be in
  range.
• An observer having them in range is said to be
  on range.
• Two beacons are frequently located for the
  specific purpose of forming a range to indicate a
  safe route or the centerline of a channel

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Navigational RangesThe Problem

• Differences are noted of the location of a boat
  when on range but not in the center of the
  channel.

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Navigational RangesData Gathering

• Record the position data as your boat tracks on
  range down the channel.

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Navigational RangesPositioning Data criteria

• Record positions only when precisely on range.
• Record positions at the beginning and the end of
  the range inside the channel
• Take a minimum of 4 positions while on range.

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Navigation Ranges
Record Positions
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for chart updating.

• Review your chart for potential discrepancies.
• Check comparative data in the Light List and the
  Coast Pilot.
• All definitions, specifications and narratives
  must correspond.
• Plot a course to the discrepancy when you have
  to move off the main channel.
• Visit the site and validate that the data on the
  chart, in the Coast Pilot and Light list
  corresponds to your observations.
• Use your camera to prove your point.

PLAN
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for chart updating.

• When reviewing your chart systematically and
  completely. Look for
• New features that need to be charted.
• Features no longer accurate.
• Cartographic errors.
• Misspelled geographic names.
• Wrong colors used for ATONs.
• Waterfront areas shown on the chart should be
  compared with existing conditions.
• Determine whether the chart presents a true
  picture of the areas as it actually exists.

TIPS
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for chart updating.

• Always verify the information published in the
  Coast Pilot to what you actually observe on
  scene.
• Is the information accurate and complete?
• Report changes on a 77-5 report
• Reference
• Edition of the Coast Pilot,
• Page and line number(s) in question.

TIPS
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Coast Pilot report example

• (157) Reserved Channel, 0.5 mile northwestward of
  Castle
• Island, is a dredged unmarked channel which leads
  westward from
• the Boston Main Channel for about 1 mile to
  nearby drawbridge.

• (157) Reserved Channel
• Line 3 should read
• 1 mile to nearby fixed bridge.

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Sample Text on 77-5

• This information change is for Coast Pilot1
• Atlantic Coast Eastport to Cape Cod.
• Page 245, Chart 13272 Reserve Channel
• See attached Coast Pilot Text Correction Report
  for suggestions to change copy.

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• NOAA form 77-5 Should include
• ID Feature explain what exactly are you doing?
• List the Latitude and Longitude of the object
  that you are reporting on. Include the EPE or
  DOP of each position.
• Method used to position the object (GPS, DGPS,
  WAAS). What type and model device was used.
• Date and time when depths and positions were
  recorded.
• Item resolution what should be done about your
  observation?
• Reference when Field Pictures are taken.
• Attach a marked-up Chart Section.

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Credit is awarded upon receipt of

• NOAA Form 77-5.
• Copy of chart section showing the item or object
  being reported.
• Any other pertinent documentation.
• Submit the info to NOS via Chain of Command
• Acknowledgement provided via DSO-AN.

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• Include a copy of chart section for all
  applicable submissions
• Gives a quick location reference of item.
• Small Craft Facility Reports
• Include all possible information about nearby
  attractions and accomodations.
• Attach business cards brochures.
• Include a marked chart section of Facility.

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Baltimore Inner Harbor Changes from 1980 to 2001.
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Chart Correction Examples
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Using As-built Drawings
As-built drawing layer removed to show chart
correction
Tracing made of new marina using field
geo-referenced as-built drawing
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Using As-Built Drawings
Geo-referenced As-Built Drawing
Transferred to the Chart
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• Originally submitted by USCGAux
• Submitted drawing did not have geographic
  coordinates

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Pier Reported Removed
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Although Pier Has been Reported Removed NOAA must
chart as ruins
New Chart
Old Chart
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Visible Wreck Not Found
Old Chart
New Chart
Report
Wreck Removed
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New Piers added to Chart
Piers Added
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• END
• OF
• SESSION X