Scientific buoys established in: a. 23-00.09S 012-23.66E
South Atlantic Ocean · HYDROLANT 1497/19
What this record establishes
Archived notice · 2019-08-02 09:43Z
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 VII 186/19 161248Z MAY 19.. Issued 2019-05-16 13:07Z. 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
- South Atlantic Ocean. The parsed report position is -23.012, 13.306. 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 HYDROLANT 1497/19 and this msglater cancellation notice
Current notices and reporting history in the South Atlantic Ocean →
- issued
- 2019-05-16 13:07Z
- status
- Archived notice
- authority
- NAVAREA VII 186/19 161248Z MAY 19.
- NAVAREA
- NAVAREA VII · named as the source of this relay
- sea
- South Atlantic Ocean
- position
- -23.012, 13.306
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
EASTERN SOUTH ATLANTIC. NAMIBIA. DNC 01. CHART 57029. SCIENTIFIC BUOYS ESTABLISHED IN: A. 23-00.09S 012-23.66E. B. 23-01.38S 014-13.11E.
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
9 within 180 nm since 2013 · 0 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.
- Survey operations in progress until 01 may by M/V ramform atlas towing 12 five mile long cables in area…2024-01-02
- Survey operations in progress until further notice by M/V nordic explorer towing ten mile long cable in area…2019-09-17
- Survey operations in progress until further notice by M/V ramform hyperion towing 9000 meter long cable in…2018-02-26
- Survey operations in progress until further notice by M/V ramform hyperion towing 9000 meter long cable in…2018-01-30
- Survey operations in progress until further notice by M/V ramform hyperion towing 9000 meter long cable in…2017-12-19
- Survey operations in progress until further notice by M/V ramform vanguard towing 12 8000 meter long cables…2014-11-14
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 02:56Z; 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.