Surveys

Survey operations by M/V polarcus alima towing 12 8100 meter long cables along tracklines between: a. 29 jan…

Western South Atlantic · HYDROLANT 304/17

issued
2017-01-29 07:30Z
status
cancelled 2017-01-30 08:58Z (archive)
cancels
HYDROLANT 301/17
authority
NAVAREA VI 57/17 290723Z JAN 17.
position
-35.336, -51.208
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

WESTERN SOUTH ATLANTIC.
DNC 01, DNC 07.
1. SURVEY OPERATIONS BY M/V POLARCUS ALIMA
   TOWING 12 8100 METER LONG CABLES ALONG
   TRACKLINES BETWEEN:
   A. 29 JAN
      35-29.17S 051-04.02W AND 35-16.88S 051-22.98W.
   B. 29 AND 30 JAN
      35-07.93S 051-23.37W AND 35-23.82S 050-58.85W.
   C. 30 JAN
      35-28.92S 051-03.77W AND 35-16.63S 051-22.73W.
   SIX MILE BERTH REQUESTED.
2. CANCEL HYDROLANT 301/17.
3. CANCEL THIS MSG 31 JAN 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

73 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.