Surveys

Survey operations in progress until 28 sep by M/V ramform tethys in 35-55.5N 011-33.19E

Eastern Mediterranean Sea · Tunisia · HYDROLANT 2031/21

issued
2021-08-04 13:06Z
status
cancelled 2021-09-29 19:54Z (archive)
cancels
HYDROLANT 1972/21
authority
NAVAREA III 623/21 041227Z AUG 21.
position
35.925, 11.553
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

EASTERN MEDITERRANEAN SEA.
TUNISIA.
DNC 08.
1. SURVEY OPERATIONS IN PROGRESS UNTIL 28 SEP
   BY M/V RAMFORM TETHYS IN 35-55.5N 011-33.19E.
   1000 METER BERTH REQUESTED.
2. CANCEL HYDROLANT 1972/21.

This area · survey operations

257 within 180 nm since 1999 · 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

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.