Surveys

Survey operations in progress until 18 feb by M/V polarcus alima towing 12 8100 meter long cables along…

Western South Atlantic · HYDROLANT 542/17

issued
2017-02-17 01:39Z
status
cancelled 2017-02-19 00:01Z (archive)
cancels
HYDROLANT 508/17
authority
NAVAREA VI 103/17 170126Z FEB 17.
position
-35.297, -51.153
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

WESTERN SOUTH ATLANTIC.
DNC 01, DNC 07.
1. SURVEY OPERATIONS IN PROGRESS UNTIL
   18 FEB BY M/V POLARCUS ALIMA TOWING
   12 8100 METER LONG CABLES
   ALONG TRACKLINES BETWEEN:
   A. 35-15.83S 051-06.20W AND 35-21.78S 050-56.90W.
   B. 35-27.65S 051-02.53W AND 35-15.37S 051-21.50W.
   C. 35-06.67S 051-22.13W AND 35-22.53S 050-57.63W.
   SIX MILE BERTH REQUESTED.
2. CANCEL HYDROLANT 508/17.
3. CANCEL THIS MSG 19 FEB 17.

This area · survey operations

118 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

Timeline

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

75 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.