Surveys

Underwater operations in progress until 20 apr by M/V joides resolution in: a. 59-48.00S 041-45.60W

South Atlantic Ocean · HYDROLANT 1088/19

What this record establishes

Archived notice · 2019-04-21 00:01Z

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 VI 141/19 060232Z APR 19.. Issued 2019-04-06 04:58Z. 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 -58.316, -42.827. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

Current notices and reporting history in the South Atlantic Ocean →

issued
2019-04-06 04:58Z
status
Archived notice
authority
NAVAREA VI 141/19 060232Z APR 19.
NAVAREA
NAVAREA VI · named as the source of this relay
sea
South Atlantic Ocean
position
-58.316, -42.827
vessel
M/V JOIDES RESOLUTION · 67 messages
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

SCOTIA SEA.
ANTARCTICA.
DNC 01.
1. UNDERWATER OPERATIONS IN PROGRESS UNTIL 20 APR
   BY M/V JOIDES RESOLUTION IN:
   A. 59-48.00S 041-45.60W.
   B. 57-42.33S 043-21.72W.
   C. 57-26.52S 043-21.46W.
   TWO MILE BERTH REQUESTED.
2. CANCEL THIS MSG 21 APR 19.

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.
Underwater operations
Divers or remotely operated vehicles are working below a vessel that cannot easily move out of the way.
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.

All warning terms →

Collected reports in this area · survey operations

23 within 180 nm since 2012 · 0 in the last 12 months · 0 listed in force now

12
15
19

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

56 survey operations listed in force · see all

Record snapshot 2026-10-02 00:56Z; 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.