Surveys

Survey operations in progress until further notice by r/v ramform titan towing 8100 meter long cable in area…

North Atlantic Ocean · NAVAREA IV 909/19

What this record establishes

Archived notice · 2019-11-03 15:59Z

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) · GUYANA 151137Z OCT 19.. Issued 2019-10-15 11:57Z. 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
North Atlantic Ocean. The map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.

Current notices and reporting history in the North Atlantic Ocean →

issued
2019-10-15 11:57Z
status
Archived notice
authority
GUYANA 151137Z OCT 19.
NAVAREA
NAVAREA IV
issued by
GUYANA
sea
North Atlantic Ocean
position
7.504, -56.501
vessel
R/V RAMFORM TITAN · 89 messages
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

WESTERN NORTH ATLANTIC.
GUYANA.
1. SURVEY OPERATIONS IN PROGRESS UNTIL FURTHER
   NOTICE BY R/V RAMFORM TITAN TOWING 8100 METER
   LONG CABLE IN AREA BOUND BY
   07-26.28N 056-21.06W, 07-07.16N 056-30.68W,
   07-15.53N 056-47.36W, 07-53.23N 056-29.88W,
   07-46.16N 056-13.93W, 07-40.00N 056-15.10W,
   07-26.28N 056-21.06W.
   EIGHT MILE BERTH REQUESTED.
2. CANCEL NAVAREA IV 903/19.

Reading this warning

Survey operations
A research or survey vessel is mapping the seabed or water column, often while towing equipment.
Until further notice
The operation or danger has no scheduled end; the warning stays in force until a later message cancels it.
Towed array / streamer
Equipment towed a long way behind a vessel — sonar, a hydrophone cable, a sampling sled — invisible at the surface.
Tow / towing
A vessel towing another vessel, a barge or a structure — slow, hard to manoeuvre, and with a long line between.
Area bound by
Introduces a list of positions that are the corners of an area — the polygon the warning applies to.
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.
Cancellation reference
A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
NAVAREA
One of the 21 ocean areas of the World-Wide Navigational Warning Service, each with a coordinator that broadcasts long-range warnings.

All warning terms →

Collected reports in this area · survey operations

295 within 180 nm since 2014 · 16 in the last 12 months · 13 listed in force now

14
15
20
25
26

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.

Month of issue in the collected archive

J
F
M
A
M
J
J
A
S
O
N
D

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

Worldwide in the collected sources

55 survey operations listed in force · see all

Record snapshot 2026-09-26 20:40Z; 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.