Surveys

Survey operations in progress until further notice by M/V discovery a. in area between 49-30S 51-30S and…

Western South Atlantic · HYDROLANT 629/18

issued: 2018-02-22 17:23Z
status: cancelled 2018-04-20 04:15Z (archive)
cancels: HYDROLANT 529/18
authority: NAVAREA VI 97/18 221721Z FEB 18.
sea: South Atlantic Ocean
position: -49.870, -43.667
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

WESTERN SOUTH ATLANTIC.
DNC 01.
1. SURVEY OPERATIONS IN PROGRESS UNTIL FURTHER
   NOTICE BY M/V DISCOVERY
   A. IN AREA BETWEEN
      49-30S 51-30S AND 038-00W 043-00W.
   B. ALONG TRACKLINE BETWEEN
      49-52.2S 040-40.0W, 049-52.2S 046-40.0W.
   WIDE BERTH REQUESTED.
2. CANCEL HYDROLANT 529/18.

This area · survey operations

2 within 180 nm since 2018 · 0 in the last 12 months · 0 in force now

Survey operations in progress until further notice by M/V discovery in area bound by 49-30S 038-00W 51-30S…2018-02-13

Season · when survey operations happen here

month of issue, all years in the archive

Timeline

Survey operations in progress until further notice by M/V discovery in area bound by 49-30S 038-00W 51-30S…cancels · 2018-02-13
Survey operations in progress until further notice by M/V discovery in area bound by 49-30S 038-00W 51-30S…replaced · 2018-02-13
Cancel HYDROLANT 629/18 and this msgcancelled by · 2018-04-20

Nearby now · within 120 nm

Nothing else in force 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.