Surveys
Survey operations in progress until further notice by M/V ramform tethys towing 8025 meter long cables in…
Eastern South Atlantic · Angola · HYDROLANT 1734/21
- issued
- 2021-07-01 21:09Z
- status
- cancelled 2021-07-26 10:22Z (archive)
- cancels
- HYDROLANT 1664/21
- authority
- NAVAREA VII 203/21 012002Z JUL 21.
- position
- -7.938, 12.799
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
EASTERN SOUTH ATLANTIC. ANGOLA. DNC 01. 1. SURVEY OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE BY M/V RAMFORM TETHYS TOWING 8025 METER LONG CABLES IN AREA BOUND BY 08-22.4S 012-38.6E, 07-40.6S 012-23.6E, 07-30.3S 012-57.0E, 08-11.4S 013-12.6E. SEVEN MILE BERTH REQUESTED. 2. CANCEL HYDROLANT 1664/21.
This area · survey operations
68 within 180 nm since 2004 · 1 in the last 12 months · 1 in force now
04
05
10
15
20
25
26
- Survey operations in progress until further notice by M/V ramform victory towing 12 three mile long cables…2026-07-03
- Survey operations 30 mar until further notice by M/V ramform vanguard towing ten 8000 meter long cables in…2023-03-28
- Survey operations in progress until further notice by M/V ramform vanguard towing 14 4500 meter long cables…2023-02-27
- Survey operations in progress until further notice by M/V ramform vanguard towing 12 6500 meter long cables…2023-01-05
- Survey operations in progress until further notice by M/V ramform vanguard towing 12 4050 meter long cables…2022-11-07
- Survey operations in progress until further notice by M/V amazon conqueror towing 14 four mile long cables…2022-01-27
Season · when survey operations happen here
J
F
M
A
M
J
J
A
S
O
N
D
month of issue, all years in the archive
Timeline
- Survey operations in progress until further notice by M/V ramform tethys and M/V thor freyja and M/V olga…cancels · 2021-06-22
- Survey operations in progress until further notice by M/V ramform tethys and M/V thor freyja and M/V olga…replaced · 2021-06-22
- Survey operations in progress until further notice by M/V ramform tethys towing 8025 meter long cables in…cancelled by · 2021-07-26
Nearby now · within 120 nm
Nothing else in force within 120 nm.
Worldwide now
75 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.