Scientific mooring, least depth 30 meters, established in 31-39.5S 114-11.0E
Indian Ocean · HYDROPAC 1971/19
What this record establishes
Archived notice · 2019-08-13 02:55Z
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) · AUSCOAST 191/19 170629Z JUN 19.. Issued 2019-06-17 07:52Z. 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
- Indian Ocean. The parsed report position is -31.658, 114.183. 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
- Cancel HYDROPAC 1971/19 and this msg, buoy removedlater cancellation notice
- issued
- 2019-06-17 07:52Z
- status
- Archived notice
- authority
- AUSCOAST 191/19 170629Z JUN 19.
- issued by
- AUSCOAST
- sea
- Indian Ocean
- position
- -31.658, 114.183
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
SOUTHEASTERN INDIAN OCEAN. AUSTRALIA-SOUTHWEST COAST. DNC 04. CHART 74593. SCIENTIFIC MOORING, LEAST DEPTH 30 METERS, ESTABLISHED IN 31-39.5S 114-11.0E.
Reading this warning
- DNC (Digital Nautical Chart)
- A reference to one of the regions of NGA's Digital Nautical Chart, used to tell the reader which charts a warning affects.
- 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
25 within 180 nm since 2002 · 4 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.
- Special purpose vessel lodbrog / fnpw / 226281000 conducting underwater operations in an area bounded by…2026-09-15
- Special purpose vessel lodbrog / fnpw / 226281000 conducting underwater operations in an area bounded by…2026-09-04
- Special purpose vessel lodbrog / fnpw / 226281000 conducting underwater operations in an area bounded by 31…2026-09-03
- Special purpose vessel lodbrog / fnpw / 226281000 conducting underwater operations in an area bounded by…2026-08-29
- Underwater operations in progress until further notice by M/V bold explorer in area bound by 31-37.00S…2024-04-19
- Survey operations in progress until further notice by M/V samson explorer towing 900 meter long cables in…2024-01-22
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
No other collected notice is currently listed in force within this radius. This does not establish safe conditions.
Worldwide in the collected sources
55 survey operations listed in force · see all
Record snapshot 2026-10-02 02:28Z; 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.