Surveys

Survey operations by M/V polarcus alima towing 12 8100 meter long cables: a. 07 apr along trackline between…

Western South Atlantic · HYDROLANT 1130/17

issued
2017-04-07 19:32Z
status
cancelled 2017-04-10 00:01Z (archive)
cancels
HYDROLANT 1117/17
authority
NAVAREA VI 226/17 071852Z APR 17.
position
-35.483, -51.304
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

WESTERN SOUTH ATLANTIC.
DNC 07.
1. SURVEY OPERATIONS BY M/V POLARCUS ALIMA
   TOWING 12 8100 METER LONG CABLES:
   A. 07 APR ALONG TRACKLINE BETWEEN
      35-23.54S 051-37.23W AND 35-33.15S 051-07.56W.
   B. 07 APR ALONG TRACKLINE BETWEEN
      35-39.37S 051-14.06W AND 35-37.05S 051-17.57W.
   C. 08 APR ALONG TRACKLINE BETWEEN
      35-28.55S 051-23.32W AND 35-34.52S 051-14.29W.
   D. 08 APR ALONG TRACKLINE BETWEEN
      35-18.47S 051-25.05W AND 35-32.41S 051-03.36W.
   E. 08 AND 09 APR ALONG TRACKLINE BETWEEN
      35-37.29S 051-07.35W AND 35-24.46S 051-27.21W.
   SIX MILE BERTH REQUESTED.
2. CANCEL HYDROLANT 1117/17.
3. CANCEL THIS MSG 10 APR 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

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.