Shotline Diving

Connecting You to the Depths of the Great Lakes

AWOIS

Canadian “Active Wrecks and Obstructions Information System” dataset used for hazards/locations; accuracy varies by record.

Shotline Diving – Glossary & Reference

AWOIS (NOAA)

AWOIS is a public dataset used to catalogue reported wrecks and obstructions and support survey planning. Shotline uses it as a cross-reference backbone: Object IDs, chart numbers, and positional accuracy notes that connect a wreck page to the wider documentary trail.

Best use

Cross-reference + positional notes

Browse Master Wreck Index Open Wreck Map Jump to Links

What Shotline Uses AWOIS For

  • ID anchoring: tie a wreck record to a stable external identifier (AWOIS ObjectID / feature ID).
  • Chart context: capture chart number + area identifier to keep research navigationally grounded.
  • Accuracy flags: note low/medium positional accuracy so divers and researchers treat points correctly.
  • Discovery workflow: help triage “reported” sites before they become verified wreck records.

How to Cite AWOIS on Shotline

  1. Include the AWOIS ObjectID (or feature ID) when available.
  2. Include the chart number and any positional quality notes (low accuracy / approximate).
  3. If the record is an obstruction / non-wreck, capture what the dataset calls it and label accordingly.
  4. Link back to this reference page so users can jump out to the source viewer and interpret it themselves.

Quick capture fields

  • ObjectID / Feature ID
  • Chart number
  • Area identifier
  • Positional accuracy note
  • Depth (if provided)

If accuracy is low, treat the point as a research lead, not a dive plan.

Planner warning

AWOIS is a research and survey planning reference. Do not treat it as an “approved wreck navigation layer”. Always cross-check charts and local conditions.

Common Shotline Workflows

1) Seed a “Research Needed” record

Use AWOIS to capture an initial point, accuracy note, and chart reference, then cross-check against other sources (Swayze, BGSU, MHGL).

2) Confirm or downgrade location confidence

If AWOIS marks a site as low accuracy, Shotline treats it as a lead until it’s supported by surveys, local reports, or confirmed site documentation.

These links are maintained in the Shipwreck References CPT. Update the reference once, and every page that uses it stays current.

[shotline_reference_links slug=”awois” title=”AWOIS Links & Access”]

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