Surveys
Hydrographic survey 30 apr thru 04 may by M/V sirius in area between 04-33S 036-27W, 04-44S 036-31W, 04-35S…
Brazil-northeast Coast · HYDROLANT 714/11
- issued
- 2011-04-27 04:23Z
- status
- cancelled 2011-05-05 00:01Z (archive)
- cancels
- HYDROLANT 635/11
- authority
- NAVAREA V N 364/11 27 APR 11 - NAVAREA V S 329/11 27 APR 11.
- sea
- South Atlantic Ocean
- position
- -4.615, -36.718
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
BRAZIL-NORTHEAST COAST. 1. HYDROGRAPHIC SURVEY 30 APR THRU 04 MAY BY M/V SIRIUS IN AREA BETWEEN 04-33S 036-27W, 04-44S 036-31W, 04-35S 036-57W, 04-24S 036-52W. 2. CANCEL HYDROLANT 635/11. 3. CANCEL THIS MSG 05 MAY.
This area · survey operations
92 within 180 nm since 1999 · 0 in the last 12 months · 0 in force now
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- Survey operations in progress until 182300Z may in areas bound by: a. 02-56.00S 038-00.20W, 02-56.00S…2023-05-18
- Underwater operations 0800Z to 2100Z daily 05 sep thru 05 mar 23 by M/V paracuru in 04-52.42S 036-22.45W2022-09-05
- Underwater operations 1100Z to 1900Z daily 15 thru 22 jun by M/V texas and M/V seamaster I in 05-42.08S…2021-06-14
- Underwater operations 1100Z to 1900Z daily 01 thru 06 jun by M/V texas and M/V seamaster I in 05-42.08S…2021-05-31
- Survey operations in progress 0800Z to 1700Z daily until 23 jul by M/V raisa II in area bound by 03-43.71S…2020-07-17
- Survey operations in progress until 15 apr by M/V ocean dream and M/V bgp pioneer eco warrior each towing…2020-03-16
Season · when survey operations happen here
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month of issue, all years in the archive
Timeline
- Nga chart 24150 (27TH ed)cancels · 2011-04-16
- Nga chart 24150 (27TH ed)replaced · 2011-04-16
Nearby now · within 120 nm
- Odas buoy bravo rn-l temporarily established until 20 oct in 04-53.00S 035-46.01WNav aids · 59.1 nm
- Odas buoy established in 05-09.46S 035-09.81WNav aids · 98.5 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.