Surveys

Survey operations by M/V polarcus alima towing 12 8100 meter long cables along tracklines between: a. 26 feb…

Western South Atlantic · HYDROLANT 643/17

issued
2017-02-26 14:29Z
status
cancelled 2017-03-01 00:01Z (archive)
authority
NAVAREA VI 123/17 261400Z FEB 17.
sea
South Atlantic Ocean
position
-35.498, -51.336
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. 26 FEB
      35-19.17S 051-25.20W AND 35-31.47S 051-06.22W.
   B. 26 FEB
      35-40.13S 051-14.60W AND 35-27.82S 051-33.58W.
   C. 26 FEB
      35-19.43S 051-25.45W AND 35-31.72S 051-06.47W.
   D. 27 FEB
      35-40.38S 051-14.83W AND 35-28.07S 051-33.83W.
   E. 27 FEB
      35-19.68S 051-25.70W AND 35-31.98S 051-06.72W.
   F. 28 FEB
      35-40.63S 051-15.08W AND 35-28.32S 051-34.08W
   SIX MILE BERTH REQUESTED.
2. CANCEL THIS MSG 01 MAR 17.

This area · survey operations

119 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

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.