Nga chart 15863 (0 ed)
The Northwestern Passages · HYDROARC 22/10
What this record establishes
Archived notice · 2010-08-01 06:30Z
This notice comes from the historical archive. Its archived status does not establish when or how the reported situation ended.
- Source and dates
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · NAVAREA XVIII 7/10 011114Z JUL 10. Issued 2010-07-04 07:00Z. First collected 2026-08-17 13:38Z; last seen in collection 2026-08-17 15:46Z. Collection dates record ingestion, not a new incident or a fresh field observation.
- Location covered
- The Northwestern Passages. The parsed report position is 71.972, -94.476. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.
Related notices and cancellation links
- Bottom scientific moorings established: a. top float 117 meters 72-00.48N 094-38.74Wcancelled by this notice
- Nga chart 15863 (0 ed)later cancellation notice
Current notices and reporting history in the The Northwestern Passages →
- issued
- 2010-07-04 07:00Z
- status
- Archived notice
- authority
- NAVAREA XVIII 7/10 011114Z JUL 10
- NAVAREA
- NAVAREA XVIII · named as the source of this relay
- sea
- The Northwestern Passages
- position
- 71.972, -94.476
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
ARCTIC. BELLOT STRAIT. NGA CHART 15863 (0 ED). 1. SCIENTIFIC MOORINGS ESTABLISHED IN: A. 71-56.58N 094-15.20W AT DEPTH 83 METERS. B. 71-56.31N 094-15.10W AT DEPTH 95 METERS. C. 71-59.97N 094-45.28W AT DEPTH 123 METERS. D. 72-00.48N 094-38.74W AT DEPTH 117 METERS. 2. CANCEL AMSI 10/08.
Reading this warning
- Chart reference
- The number of the nautical chart on which the reported position lies.
- Scientific mooring
- Instruments anchored to the seabed and held up by floats, sometimes just below the surface, left for months to measure the ocean.
- Position (degrees and minutes)
- How warnings write positions: degrees, a hyphen, then minutes, with N/S and E/W — 49-40.8N 003-43.8W.
Collected reports in this area · survey operations
11 within 180 nm since 2008 · 1 in the last 12 months · 0 listed in force now
Counts include repeat notices about the same situation. NGA archive coverage ends 2024-05; live collection began 2026-08-17. The period between them is incomplete. An empty year is not evidence that no hazards occurred.
- Scientific moorings established in: a. 69-42.02N 095-42.64W, least depth 43 meters2026-09-23
- Scientific mooring, top float 30 meters, established in 74-27.83N 090-32.81W2023-10-02
- Scientific mooring, top float 30 meters, established in 74-08.75N 091-02.83W2023-10-02
- Scientific moorings established: a. 74-36.37N 091-15.05W, top float 147 meters2022-09-23
- Scientific mooring established in 69-56.79N 097-54.58W2015-08-28
- Nga chart 15881 (0 ed)2011-09-16
Month of issue in the collected archive
All available years combined. Uneven collection and repeat bulletins affect these counts; this chart does not measure the seasonality or probability of incidents.
Nearby notices listed in force · within 120 nm
- Depths reported: a. 29.3 meters in 71-22.82N 096-41.27WWrecks · 56.7 nm
Worldwide in the collected sources
56 survey operations listed in force · see all
Record snapshot 2026-10-02 20:58Z; source collection times vary.
Surveys
Hydrographic and scientific survey vessels, often towing long arrays. All current survey operations →
Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.