Author: noaacoastsurvey

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The colors of sound

One would be forgiven for thinking that measurements of the ocean floor just produce numbers. It turns out that the data acquired by sound (sonar) can be translated into some truly beautiful graphics. Check out this gorgeous digital terrain model created by Ian Colvert, a physical science technician with Coast Survey’s Navigation Response Team 6. Colvert produced the image file by processing data acquired with the team’s multibeam sonar during a recent hydrographic survey project.
The digital terrain model depicts the wreck of the freighter Fernstream, a 416-foot motor cargo vessel that sank after a collision near the entrance of the San Francisco Bay in 1952. NRT6 surveyed Fernstream as part of a recent study – identifying potential polluting shipwrecks – conducted by the Office of National Maritime Sanctuaries and the Office of Response and Restoration.

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NOAA’s latest mobile app provides free nautical charts for recreational boating

UPDATE: the beta testing period for MyNOAACharts has ended 

Public is invited to try beta version of MyNOAACharts

As recreational boaters gear up for a summer of fun on coastal waters and the Great Lakes, NOAA is testing MyNOAACharts, a new mobile application that allows users to download NOAA nautical charts and editions of the U.S. Coast Pilot. The app, which is only designed for Android tablets for the testing period, was just released.
MyNOAAChart, which can be used on land and on the water, lets users find their positions on a NOAA nautical chart. They can zoom in any specific location with a touch of the finger, or zoom out for the big picture to plan their day of sailing. The Coast Pilot has geo-tagged some of the major references and provides links to appropriate federal regulations.
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U.S. Chart No. 1 moves into electronic age

For the 65 years since the U.S. Coast and Geodetic Survey issued the first edition of U.S. Chart No.1 in 1948, mariners have had a standard guide for understanding the symbols, abbreviations and terms used on paper nautical charts. In a major step forward, a new edition of that guide also describes the symbols specified by the International Hydrographic Organization for the display of electronic navigational charts (ENC) on Electronic Chart Display and Information Systems (ECDIS).
SymbolGlobeSeveral maritime nations produce their own versions of Chart 1. The U.S. Chart No. 1 describes the symbols used on paper nautical charts produced by NOAA and the National Geospatial-Intelligence Agency (NGA). The new U.S. Chart No. 1 is the first “Chart 1” produced by any country to show paper and electronic chart symbology side by side.
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NOAA’s new nautical chart improves safety for maritime gateway to the Arctic

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.”
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NOAA hydro survey season underway

Spring is always a noteworthy time at Coast Survey, as the hydrographic season gets underway. This year is no exception, with some neat projects ahead.
On the East Coast, NOAA Ship Thomas Jefferson continues her work with the multi-state, multi-agency Long Island Sound Seafloor Mapping Initiative, as well as acquiring data over 87 square nautical miles in the approaches to New York to update nautical charts. In June, Thomas Jefferson begins some of her summer-long extensive 2013 post-Sandy surveys in Delaware Bay (supported by Title X, Chapter 2, of H.R. 152, the Disaster Relief Appropriations Act, 2013).
As our newest survey vessel, NOAA Ship Ferdinand Hassler, prepares for a long survey career, the crew is taking her through final repairs, upgrades, training, and inspection this spring. If all goes well, Hassler will then survey approaches to Chesapeake Bay in July, before heading to her new homeport in New Castle, New Hampshire. Once there, Hassler plans to survey approaches to New Hampshire and conduct some tests and evaluations of a new autonomous underwater vehicle (AUV) for surveying.
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NOAA starts 2013 post-Sandy surveys at Statue of Liberty

NOAA kicked off its spring season for post-Sandy hydrographic work on April 11, as a navigation response team — equipped with high-tech surveying equipment — began a search for underwater storm debris and mapped the depths surrounding Liberty Island and Ellis Island. Navigation Response Team 5 wrapped up their project today, after surveying over 110 linear nautical miles. They surveyed for 119 hours, collecting over 578 million depth measurements.
In addition to surveying around Liberty Island and Ellis Island, Coast Survey’s NRT5 surveyed adjacent areas to acquire data for updates to NOAA’s nautical charts. This is the “rainbow” coverage map that shows the surveyed area. (The colors indicate depth.)

Graphic depiction of Navigation Response Team 5 surveys of Liberty Island and adjacent areas
Navigation Response Team 5 prepared this graphic depiction of their surveys of Liberty Island and adjacent areas.

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Updated Arctic chart mitigates risk for commercial transportation on the Kuskokwim

By Andrew Kampia, chief of Products Branch A, Marine Chart Division, Office of Coast Survey
When we say that many Arctic charts are lacking information critical to navigation, we’re not overstating the issue. A case in point was the 2005 edition of Chart 16304, depicting the mouth of Kuskokwim River to the City of Bethel, in Alaska. This was a preliminary chart with no hydrography, no depth measurements whatsoever.

Chart 16304 - 2005
Preliminary Chart 16304, issued in 2005

Coast Survey just released updated NOAA Chart 16304, which now includes contemporary shoreline and hydrography. (The NOAA ENC® equivalent — US4AK85M — will be available in a month or two.)
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NOAA library blows the dust off a photo of dust clouds

By Linda Joy, NOAA Communications and External Affairs
In April 1935, George Marsh, an unassuming engineer employed by the U.S. Coast and Geodetic Survey, took a photo in the course of his work during a Texas surveying mission. Not having Facebook or other social media tools at hand, he put the photo in an album and stored it away. He could not have known that many decades later, thanks to the NOAA Library and the Internet, his photo would eventually reach millions of people around the globe.
The now famous photo captured boiling dust clouds about to swallow a homestead during the Dust Bowl’s infamous Black Sunday storm.
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Coast Survey unveils easier access to wreck information

By Lucy Hick, physical scientist, Hydrographic Surveys Division

Maintaining documentation for features depicted on nautical charts is more complicated than you probably imagine. For instance, Coast Survey maintains information on more than 10,000 submerged wrecks and obstructions in U.S. coastal waters – and it just got easier for the public to access that free information.
Coast Survey uses our Automated Wreck and Obstruction Information System (AWOIS) to help plan hydrographic survey operations and to catalog the many reported wrecks and obstructions considered navigational hazards within U.S. coastal waters. The public also has access to this rich information source. Marine archaeologists and historians, fishermen, divers, salvage operators, and others in the marine community find AWOIS valuable as an historical record of selected wrecks and obstructions.
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NOAA and Coast Guard release Cooperative Maritime Strategy

NOAA and the U.S. Coast Guard recently released the Cooperative Maritime Strategy developed by the two agencies. The introduction to the document, signed by Admiral Papp and Dr. Lubchenco, is a stirring testament to our shared legacy and commitment. We reprint that introduction here.
25 February 2013
USCG-NOAA Cooperative Maritime Strategy
We are pleased to promulgate our Nation’s first-ever Cooperative Maritime Strategy between the United States Coast Guard and the National Oceanic and Atmospheric Administration. For over 200 years, our Services have stood in partnership on maritime resilience, environmental sustainability, and scientific research. Indeed, America is a maritime nation, and the oceans, coasts, rivers and Great Lakes are the lifeblood of our economy. The maritime commons promote economic growth, advance technology, and challenge the human spirit. Our Services share a legacy and are committed to a future that honors our responsibilities as stewards of the oceans.
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