Surveys
Hydrographic survey 111100Z to 220259Z mar by M/V rou 22 oyarvide in area bound by 34-42.0S 053-45.0W,…
HYDROLANT 538/03
- issued
- 2003-03-11 03:10Z
- status
- cancelled 2003-03-19 04:48Z (archive)
- authority
- NAVAREA VI 109/03 110200Z MAR 03
- sea
- South Atlantic Ocean
- position
- -34.646, -53.626
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. HYDROGRAPHIC SURVEY 111100Z TO 220259Z MAR BY M/V ROU 22 OYARVIDE IN AREA BOUND BY 34-42.0S 053-45.0W, 34-47.0S 053-40.7W, 34-35.8S 053-30.0W, 34-30.5S 053-34.7W. 1.5 MILE BERTH REQUESTED. 2. CANCEL THIS MGS 220359Z MAR.
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2003-03-11 11:00Z | 2003-03-22 02:59Z | — | 255 h 59 |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
This area · survey operations
116 within 180 nm since 1998 · 0 in the last 12 months · 0 in force now
98
00
05
10
15
17
- Survey operations by M/V polarcus alima towing 12 8100 meter long cables: a. 16 and 17 apr along trackline…2017-04-16
- Survey operations 15 and 16 apr by M/V polarcus alima towing 12 8100 meter long cables along tracklines…2017-04-15
- Survey operations 14 thru 16 apr by M/V polarcus alima towing 12 8100 meter long cables along tracklines…2017-04-14
- Survey operations 12 apr by M/V polarcus alima towing 12 8100 meter long cables along trackline between…2017-04-11
- Survey operations by M/V polarcus alima towing 12 8100 meter long cables: a. 09 apr along trackline joining…2017-04-09
- Survey operations by M/V polarcus alima towing 12 8100 meter long cables: a. 08 apr along trackline between…2017-04-08
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
- Hydrographic survey in progress until 271200Z mar by M/V rou 22 oyarvide in area bound by 34-42.0S…cancelled by · 2003-03-19
Nearby now · within 120 nm
- Radiobeacon at chui light 33-44.6S 053-22.5W off air until 17 jan 27Nav aids · 55.6 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.