Surveys

Survey operations by M/V polarcus alima towing 12 8100 meter long cables: a. 24 mar along trackline between…

Western South Atlantic · HYDROLANT 953/17

issued
2017-03-24 15:09Z
status
cancelled 2017-03-27 00:01Z (archive)
cancels
HYDROLANT 935/17
authority
NAVAREA VI 191/17 241508Z MAR 17.
sea
South Atlantic Ocean
position
-35.566, -51.412
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. 24 MAR ALONG TRACKLINE BETWEEN
      35-36.40S 051-32.42W AND 35-32.63S 051-38.28W.
   B. 24 MAR ALONG TRACKLINE BETWEEN
      35-25.02S 051-30.87W AND 35-37.33S 051-11.88W.
   C. 25 MAR ALONG TRACKLINE BETWEEN
      35-44.70S 051-19.03W AND 35-32.38S 051-38.03W.
   D. 25 MAR ALONG TRACKLINE BETWEEN
      35-24.77S 051-30.62W AND 35-37.07S 051-11.63W.
   E. 25 MAR ALONG TRACKLINE BETWEEN
      35-44.45S 051-18.78W AND 35-32.12S 051-37.78W.
   F. 26 MAR ALONG TRACKLINE BETWEEN
      35-24.50S 051-30.38W AND 35-36.82S 051-11.38W.
   SIX MILE BERTH REQUESTED.
2. CANCEL HYDROLANT 935/17.
3. CANCEL THIS MSG 27 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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24

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.