Surveys
Canada DNC 28
Coronation Gulf · HYDROARC 288/17
- issued
- 2017-09-21 08:50Z
- status
- cancelled 2019-04-05 11:14Z (archive)
- authority
- NAVAREA XVIII 100/17 210849Z SEP 17.
- position
- 68.461, -113.389
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
CORONATION GULF. CANADA DNC 28. CHART 15955. SUB-SURFACE SCIENTIFIC MOORING, TOP FLOAT 40 METERS, ESTABLISHED IN 68-27.65N 113-23.33W.
This area · survey operations
7 within 180 nm since 2010 · 0 in the last 12 months · 0 in force now
10
15
20
22
- Scientific mooring, top float seven meters above sea floor, established in 68-55.92N 105-49.71W2022-08-22
- Scientific mooring, top float 15 meters below surface, established in: a. 67-40.09N 107-57.28W2022-08-21
- Scientific mooring, top float 15 meters below surface, established in 68-20.75N 112-21.12W2022-08-19
- Scientific mooring, top float 15 meters below surface, established in 67-53.89N 111-21.21W2022-08-19
- Scientific mooring, top float 37 meters, established in 70-42.59N 117-51.21W2021-10-07
- Salvage operations in progress until further notice in 67-58.27N 112-40.34W2010-09-12
Season · when survey operations happen here
J
F
M
A
M
J
J
A
S
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N
D
month of issue, all years in the archive
Timeline
- HYDROARC warnings in force as of 051036Z apr 19: 49/19, 47/19, 46/19, 41/19, 37/19, 35/19, 18/19cancelled by · 2019-04-05
Nearby now · within 120 nm
Nothing else in force within 120 nm.
Worldwide now
73 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.