Surveys

Survey operations by M/V polarcus alima towing 12 8100 meter long cables along tracklines between: a. 30 jan…

Western South Atlantic · HYDROLANT 310/17

issued
2017-01-30 08:58Z
status
cancelled 2017-02-01 00:01Z (archive)
cancels
HYDROLANT 304/17
authority
NAVAREA VI 60/17 300000Z JAN 17.
position
-35.025, -51.152
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. 30 JAN
      35-28.90S 051-03.75W AND 35-33.57S 051-04.27W.
   B. 30 JAN
      34-04.35S 051-19.97W AND 35-21.67S 050-53.03W.
   C. 31 JAN
      35-25.54S 051-00.43W AND 35-08.18S 051-27.45W.
   D. 31 JAN
      35-04.52S 051-20.25W AND 35-21.98S 050-53.43W.
   E. 31 JAN
      35-25.95S 051-00.60W AND 35-08.65S 051-27.38W.
   SIX MILE BERTH REQUESTED.
2. CANCEL HYDROLANT 304/17.
3. CANCEL THIS MSG 01 FEB 17.

This area · survey operations

119 within 180 nm since 1998 · 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.