Surveys

Survey operations until 08 mar by M/V hai yang shi you 720 towing ten 11112 meter long cables in area bound…

Western South Atlantic · Brazil-east Coast · HYDROLANT 605/21

issued
2021-03-02 00:37Z
status
cancelled 2021-03-09 00:01Z (archive)
authority
NAVAREA V 95/21 020015Z MAR 21.
sea
South Atlantic Ocean
position
-20.412, -38.837
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

WESTERN SOUTH ATLANTIC.
BRAZIL-EAST COAST.
DNC 01.
1. SURVEY OPERATIONS UNTIL 08 MAR BY
   M/V HAI YANG SHI YOU 720 TOWING TEN
   11112 METER LONG CABLES IN AREA BOUND BY
   20-08S 038-15W, 20-12S 038-50W,
   20-38S 039-24W, 20-40S 038-53W.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 09 MAR 21.

This area · survey operations

556 within 180 nm since 2000 · 23 in the last 12 months · 14 in force now

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26

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

84 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.