Surveys
Survey operations 02 thru 07 mar by M/V ramform titan towing 14 10000 meter long cables in area bound by…
Western South Atlantic · Brazil-southeast Coast · HYDROLANT 780/20
- issued
- 2020-03-01 21:56Z
- status
- cancelled 2020-03-08 00:01Z (archive)
- cancels
- HYDROLANT 765/20
- authority
- NAVAREA V COASTAL E 168/20 012143Z MAR 20.
- sea
- South Atlantic Ocean
- position
- -22.637, -39.242
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
WESTERN SOUTH ATLANTIC. BRAZIL-SOUTHEAST COAST. DNC 01. 1. SURVEY OPERATIONS 02 THRU 07 MAR BY M/V RAMFORM TITAN TOWING 14 10000 METER LONG CABLES IN AREA BOUND BY 21-45.0S 039-41.5W, 21-45.0S 038-37.0W, 23-30.0S 038-36.3W, 23-30.0S 039-53.6W, 22-01.4S 039-52.8W. WIDE BERTH REQUESTED. 2. CANCEL HYDROLANT 765/20. 3. CANCEL THIS MSG 08 MAR 20.
This area · survey operations
711 within 180 nm since 2000 · 24 in the last 12 months · 15 in force now
00
05
10
15
20
25
26
- Underwater operations 0800Z to 1800Z daily 21 aug thru 04 sep by M/V capetan vassilis II and M/V comando b…2026-08-20
- Underwater operations 1100Z to 2100Z daily 20 aug thru 03 sep by M/V charlie and M/V comando b in 20-24.27S…2026-08-19
- Underwater operations 1100Z to 2100Z daily 20 aug thru 03 sep by M/V comando b and M/V linden trader in…2026-08-19
- Underwater operations 1100Z to 2100Z daily 20 aug thru 03 sep by M/V hui an and M/V comando b in 20-23.17S…2026-08-19
- Underwater operations 0800Z to 1800Z daily until 28 aug by M/V spar aries and M/V comando b in 20-48.85S…2026-08-18
- Underwater operations 0800Z to 1800Z daily until 29 aug by M/V comando b and M/V am kirti in 20-19.03S…2026-08-18
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
Nearby now · within 120 nm
- Underwater operations in progress until 140001Z nov by M/V fugro vaquita in area bound by 22-03.00S…Surveys · 34.8 nm
- Survey operations in progress until 09 jul 27 by M/V bgp dragon towing 250 meter long cable in area bound by…Surveys · 48.7 nm
- Underwater operations 1000Z to 2000Z daily until 02 nov 26 by M/V fugro vaquita in: a. 22-26.32S 040-25.47WSurveys · 66.3 nm
- Underwater operations in progress until 170259Z aug in 22-22.48S 040-25.05WSurveys · 67.1 nm
- Underwater operations 281000Z jul to 192100Z aug by M/V umi polaris in area bound by 21-53.65S 040-49.70W,…Surveys · 94.9 nm
- Underwater operations in progress until 312300Z aug by M/V fugro vaquita in area bound by 21-35.43S…Surveys · 96.4 nm
- Survey operations in progress until 312200Z aug in area bound by 21-36.17S 041-00.00W, 21-36.05S 040-37.59W,…Surveys · 99.7 nm
- Survey operations 10 aug 26 thru 08 mar 27 by tug mce navegacao I in area bound by 22-48.38S 041-08.21W,…Surveys · 102.6 nm
- Odas buoy temporarily established until 13 apr 27 in 21-34.20S 040-43.62WNav aids · 104.6 nm
- RACON at cabo sao tome light 22-02.52S 041-03.17W off air until 28 sepNav aids · 106.7 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.