NOAA ENC

NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION

US4AK7NJ - Alaska


INDEX:
AUTHORITIES
AIDS TO NAVIGATION
NOTE A
WARNING - PRUDENT MARINER
POLLUTION REPORTS
SUPPLEMENTAL INFORMATION
CAUTION - DEPTHS
CAUTION - TEMPORARY CHANGES
COLREGS, 80.1705 (see note A)
TIDAL INFORMATION
CAUTION  USE OF RADIO SIGNALS (LIMITATIONS)
CAUTION - SUBMARINE PIPELINES AND CABLES
NOAA WEATHER RADIO BROADCASTS
ADDITIONAL INFORMATION 

NOTES:
AUTHORITIES
Hydrography (From surveys of 1952-53) and topography by the
National Ocean Service, Coast Survey, with additional data from the
State of Alaska, the Geological Survey, and U.S. Coast Guard.

AIDS TO NAVIGATION
Consult U.S. Coast Guard Light List for
supplemental information concerning aids to
navigation.

NOTE A
Navigation regulations are published in
Chapter 2, U.S. Coast Pilot 9. Additions or
revisions to Chapter 2 are published in the
Notice to Mariners. Information concerning
the regulations may be obtained at the Office
of the Commander, 17th Coast Guard District
in Juneau, Alaska, or at the Office of the District
Engineer, Corps of Engineers in Anchorage,
Alaska.
Refer to charted regulation section numbers.

WARNING - PRUDENT MARINER
The prudent mariner will not rely solely on any
single aid to navigation, particularly on floating
aids. See U.S. Coast Guard Light List and U.S.
Coast Pilot for details.

POLLUTION REPORTS
Report all spills of oil and hazardous sub-
stances to the National Response Center via
1-800-424-8802 (toll free), or to the nearest U.S.
Coast Guard facility if telephone communication
is impossible (33 CFR 153).

SUPPLEMENTAL INFORMATION
Consult U.S. Coast Pilot 9 for important
supplemental information.

CAUTION - DEPTHS
Depths may vary as much as 1.8 meters (6 feet) due to
iceberg groundings.

CAUTION - TEMPORARY CHANGES
Temporary changes or defects in aids to 
navigation are not indicated.  See 
Local Notice to Mariners

RACON
Radar Transponder Beacons or RACONS
are activated by radars operating on the
X-Band frequencies 9300 to 9450 MHz and
when activated will emit an international morse
code character which will be visible on the
radar screen that activated the RACON. The
effective range of the RACONS will be from 11
to 27 miles.
The RACONS will be maintained seasonally
from 1 July to 15 September.

SUBSISTENCE WHALING IN THE BEAUFORT SEA
Mariners should be aware that Alaskan Natives engage in
subsistence whaling in the Beaufort Sea from August 15
to October 31. Vessel operators are requested to contact
the Alaska Eskimo Whaling Commission at (907) 852-2392,
or aewcdir@barrow.com prior to entering this area for infor-
mation about the location and avoidance of traditional Native
hunting parties.

COLREGS, 80.1705 (see note A)
International Regulations for Preventing Collisions at Sea,
1972.
The entire area of this chart falls seaward of the COLREGS
Demarcation Line.

TIDAL INFORMATION 
For tidal information see the NOS Tide Table publication or go to http://co-ops.nos.noaa.gov.

CAUTION  USE OF RADIO SIGNALS (LIMITATIONS) 
Limitations on the use of radio signals as aids to marine navigation can be found in the U.S. Coast Guard Light Lists and National Geospatial-Intelligence Agency Publication 117. Radio direction-finder bearings to commercial broadcasting stations are subject to error and should be used with caution.


CAUTION - SUBMARINE PIPELINES AND CABLES
Additional uncharted submarine pipelines and submarine cables may exist within the area of this chart. Not all submarine pipelines and submarine cables are required to be buried, and those that were originally buried may have become exposed. Mariners should use extreme caution when operating vessels in depths of water comparable to their draft in areas where pipelines and cables may exist, and when anchoring, dragging, or trawling.
Covered wells may be marked by lighted or unlighted buoys.

NOAA WEATHER RADIO BROADCASTS
The NOAA Weather Radio stations listed 
below provide continuous weather broadcasts.  
The reception range is typically 20 to 40 
nautical miles from the antenna site, but can be 
as much as 100 nautical miles for stations at 
high elevations.

Barrow, AK	KZZ-53		162.550 MHz

ADDITIONAL INFORMATION
Additional information can be obtained at www.nauticalcharts.noaa.gov.

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