Surveys

Survey operations 270300Z dec to 020259Z jan 23 by M/V sw diamond towing nine 225 meter long cables in area…

Western South Atlantic · HYDROLANT 3306/22

issued
2022-12-27 00:11Z
status
cancelled 2023-01-02 03:59Z (archive)
self-cancels
2023-01-02 03:59Z
authority
NAVAREA V 684/22 262124Z DEC 22.
sea
South Atlantic Ocean
position
-25.638, -42.887
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

WESTERN SOUTH ATLANTIC.
DNC 01.
1. SURVEY OPERATIONS 270300Z DEC TO 020259Z JAN 23
   BY M/V SW DIAMOND TOWING NINE 225 METER LONG CABLES
   IN AREA BOUND BY
   25-45.44S 042-42.96W, 25-34.28S 043-05.10W,
   25-31.13S 043-03.59W, 25-42.37S 042-41.30W,
   25-42.47S 042-41.29W.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 020359Z JAN 23.

Activity windows · 1 in this warning

opens (UTC)closes (UTC)locallength
2022-12-27 03:00Z2023-01-02 02:59Z143 h 59

Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.

This area · survey operations

572 within 180 nm since 2000 · 0 in the last 12 months · 0 in force now

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Season · when survey operations happen here

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month of issue, all years in the archive

Nearby now · within 120 nm

Worldwide now

86 survey operations in force · see all

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.