Survey operations 170600Z to 230600Z nov by M/V charles darwin along trackline between 17-15S 043-01E and…
Mozambique Channel · HYDROPAC 1970/03
What this record establishes
Archived notice · 2003-11-23 07:00Z
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 152/03 141931Z NOV 03. Issued 2003-11-14 21:17Z. 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
- Mozambique Channel. The map shows the reported line or operation extent; it is not a vessel track. Check the original wording for limits and qualifications.
Current notices and reporting history in the Mozambique Channel →
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2003-11-17 06:00Z | 2003-11-23 06:00Z | — | 144 h |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2003-11-14 21:17Z
- status
- Archived notice
- self-cancels
- 2003-11-23 07:00Z
- authority
- NAVAREA VII 152/03 141931Z NOV 03
- NAVAREA
- NAVAREA VII · named as the source of this relay
- sea
- Mozambique Channel
- position
- -16.900, 41.567
- vessel
- M/V CHARLES DARWIN · 18 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
1. SURVEY OPERATIONS 170600Z TO 230600Z NOV BY M/V CHARLES DARWIN ALONG TRACKLINE BETWEEN 17-15S 043-01E AND 16-33S 040-07E. WIDE BERTH REQUESTED. 2. CANCEL THIS MSG 230700Z NOV.
Reading this warning
- Survey operations
- A research or survey vessel is mapping the seabed or water column, often while towing equipment.
- Date-time group (DTG)
- A compact UTC timestamp — day, hour and minute followed by Z — such as 201500Z for the 20th at 15:00 UTC.
- Track line joining
- Introduces a route through a series of positions — a cable route, a tow's track or a survey line.
- 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.
- Wide berth requested
- Keep well clear — or, when a distance is given ("TWO MILE BERTH REQUESTED"), at least that far away.
- CANCEL THIS MSG
- The warning's own expiry: a line telling the reader when the message cancels itself.
Collected reports in this area · survey operations
10 within 180 nm since 2003 · 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 by M/V pourquoi pas 17 feb thru 28 mar in area bound by 15-21S 042-31E, 16-51S 043-24E,…2021-02-19
- Survey operations by M/V pourquoi pas 17 feb thru 28 mar in area bound by 15-36S 042-53E, 16-55S 043-41E,…2021-02-16
- Survey operations in progress until further notice by M/V western trident towing 9000 meter long cable in…2016-10-26
- Survey operations in progress until further notice by M/V western trident towing 9000 meter long cable in…2016-09-26
- Survey operations in progress until further notice by M/V wg amundsen towing 9000 meter long cable in area…2016-02-29
- Survey operations in progress until further notice by M/V western trident towing 9000 meter long cable in…2016-02-18
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
56 survey operations listed in force · see all
Record snapshot 2026-10-03 08:09Z; 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.