Surveys
Survey operations in progress until 10 aug by M/V hai yang shi you 720 in area bound by 26-20S 044-10W,…
Western South Atlantic · HYDROLANT 2017/21
- issued
- 2021-08-03 09:45Z
- status
- cancelled 2021-08-11 00:01Z (archive)
- cancels
- HYDROLANT 2015/21
- authority
- NAVAREA V 352/21 030405Z AUG 21.
- sea
- South Atlantic Ocean
- position
- -26.612, -44.895
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
WESTERN SOUTH ATLANTIC. DNC 01. 1. SURVEY OPERATIONS IN PROGRESS UNTIL 10 AUG BY M/V HAI YANG SHI YOU 720 IN AREA BOUND BY 26-20S 044-10W, 26-33S 043-58W, 27-20S 045-20W, 26-04S 045-31W. WIDE BERTH REQUESTED. 2. CANCEL HYDROLANT 2015/21. 3. CANCEL THIS MSG 11 AUG 21.
This area · survey operations
581 within 180 nm since 1999 · 3 in the last 12 months · 1 in force now
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- Underwater operations 1000Z to 2000Z daily until 25 aug by vessel nomar in 24-07.27S 046-09.30W2026-08-20
- Survey operations in progress until 24 aug by M/V sea 1 dorado in area bound by 24-53.20S 042-47.12W,…2026-08-19
- Scientific bouy, yellow, fl y 20 sec established in 27-24.38S 047-15.92W2026-02-27
- Survey operations 17 apr thru 08 may by M/V artemis odyssey in area bound by 25-04.49S 042-10.72W, 25-05.99S…2024-04-17
- Underwater operations 1100Z to 2000Z daily 06 apr thru 05 may in 24-07.11S 046-08.76W2024-04-06
- Survey operations in progress until 30 apr by M/V ramform victory towing ten 8800 meter long cables in area…2024-04-03
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.