Surveys

Survey operations by M/V polarcus alima towing 12 8100 meter long cables along tracklines between: a. 05 mar…

Western South Atlantic · HYDROLANT 731/17

issued
2017-03-05 13:38Z
status
cancelled 2017-03-07 00:06Z (archive)
cancels
HYDROLANT 715/17
authority
NAVAREA VI 140/17 051400Z MAR 17.
sea
South Atlantic Ocean
position
-35.560, -51.445
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 ALONG
   TRACKLINES BETWEEN:
   A. 05 MAR
      35-26.55S 051-32.35W AND 35-38.85S 051-13.35W.
   B. 05 MAR
      35-46.50S 051-20.75W AND 35-34.17S 051-39.77W.
   C. 06 MAR
      35-26.28S 051-32.10W AND 35-38.60S 051-13.13W.
   D. 06 MAR
      35-46.23S 051-20.50W AND 35-33.90S 051-39.53W.
   E. 06 MAR
      35-26.03S 051-31.87W AND 35-38.35S 051-15.87W.
   F. 07 MAR
      35-15.98S 051-20.27W AND 35-33.65S 051-39.28W.
   SIX MILE BERTH REQUESTED.
2. CANCEL HYDROLANT 715/17.
3. CANCEL THIS MSG 08 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.