Surveys
Hydrographic survey operations in progress until further notice by M/V thetis within 12 miles of 54-18N…
HYDROLANT 977/09
- issued
- 2009-05-28 11:06Z
- status
- cancelled 2009-06-26 16:14Z (archive)
- authority
- WZ 643/09 280726Z MAY 09.
- sea
- North Sea
- position
- 54.300, 0.617 · r 12.0 nm
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
HYDROGRAPHIC SURVEY OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE BY M/V THETIS WITHIN 12 MILES OF 54-18N 000-37E. WIDE BERTH REQUESTED.
This area · survey operations
394 within 180 nm since 1997 · 0 in the last 12 months · 0 in force now
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- Survey operations in progress until 25 may by M/V ramform tethys towing 12 8000 meter long cables in area…2024-04-22
- Survey operations in progress until further notice by M/V sw amundsen towing seven 2200 meter long cables in…2024-04-18
- Survey operations in progress until further notice by M/V pxgeo 2 towing ten 4500 meter long cables in area…2023-08-16
- Survey operations in progress until further notice by M/V amazon conqueror towing eight 4700 meter long…2023-04-03
- Survey operations in progress until further notice by M/V kommandor towing 1200 meter long cable in area…2022-10-27
- Survey operations in progress until further notice by M/V sw bly towing 12 5000 meter long cables in area…2022-09-04
Season · when survey operations happen here
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month of issue, all years in the archive
Timeline
- Cancel HYDROLANT 977/09 and this msg, operations completedcancelled by · 2009-06-26
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.