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NOAA Office of Coast Survey releases new nautical chart for Bering Strait North / Gateway to the Arctic

Diomede (Inalik) village on the west coast of ...
Diomede (Inalik) village on the west coast of Little Diomede Island, Alaska (Photo credit: Wikipedia)
NOAA Chart 16190
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@NauticalCharts 5-17-2013

NOAA Office of Coast Survey has released a new nautical chart for the Arctic, which will help mariners navigate the Bering Strait. Chart 16190 (Bering Strait North) incorporates precise depth measurements acquired recently by NOAA Ship Fairweather hydrographic surveys.

Coast Survey has also released a new edition of Chart 16220 (St Lawrence Island to Bering Strait).

“Our Arctic Nautical Charting Plan identified the need for 14 new charts in the Arctic,” explains Commander Shep Smith, chief of Coast Survey’s Marine Chart Division. “Chart 16190 was high on our list of priorities, since the Bering Strait is the maritime gateway from the Bering Sea in the Pacific Ocean to the Chukchi Sea in the Arctic Ocean.”

“Charting the gateway is absolutely vital for safe navigation, but it is more than that,” Smith says. “In addition to the very practical aspects, this chart also symbolizes an opening to the growing opportunities for maritime transportation in the Arctic.”

Charts 16190 and 16220 include recent hydrographic information in U.S. waters between Cape Prince of Wales and the immediate waters surrounding Little Diomede Island. They also include recent NOAA shoreline surveys of the Diomede Islands and Cape Prince of Wales.
English: Image of the NOAA Ship Fairweather
English: Image of the NOAA Ship Fairweather (Photo credit: Wikipedia)

Chart 16190 provides 1:100,000 scale coverage, including a 1:40,000 scale inset of Little Diomede Island. Chart 16220 provides 1:315,350 scale coverage. Prior to these charts, the best available information was from Chart 16005, at a scale of 1:700,000. At that scale, every charted depth was separated by about two nautical miles and the chart depicted only a handful of depths. Most of the old charted depths were from 1950 and provided incomplete information about the depths or possible hazards on the sea floor.

Bering strait, image taken by MISR sattelite.
Bering strait, image taken by MISR sattelite. (Photo credit: Wikipedia)
Chart 16190 is the second new chart resulting from the Arctic Nautical Charting Plan. Coast Survey created the first of the new Arctic charts, Chart 16161 (Kotzebue and Approaches), in April 2012. (See New Alaska navigational chart makes increased Arctic shipping safer.) Chart 16220 had previously been maintained by the National Geospatial-Intelligence Agency, but Coast Survey assumed responsibility for it in 2010.

The equivalent NOAA electronic navigational charts (NOAA ENC®) for 16190 will be available this summer. Watch for US4AK8D (Bering Strait North), and US5AK8D (Little Diomede Island
). The 16220 ENC equivalent — US3AK89M — was created in 2012 and included the new Fairweather hydro.

Coast Survey’s Marine Chart Division is responsible for updating the nation’s 1,023 nautical charts. Chart 16190 was compiled by Kieumy Dinh and reviewed by Eric Wallner, under the management of Andew Kampia. Chart 16220 was updated by Pravin Shrestha (compiler) and Yan Xu (reviewer).

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