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.
Continue reading “U.S. Chart No. 1 moves into electronic age”

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.”
Continue reading “NOAA’s new nautical chart improves safety for maritime gateway to the Arctic”

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.
Continue reading “NOAA hydro survey season underway”

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.

Continue reading “NOAA starts 2013 post-Sandy surveys at Statue of Liberty”

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.)
Continue reading “Updated Arctic chart mitigates risk for commercial transportation on the Kuskokwim”

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.
Continue reading “NOAA library blows the dust off a photo of dust clouds”

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.
Continue reading “Coast Survey unveils easier access to wreck information”

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.
Continue reading “NOAA and Coast Guard release Cooperative Maritime Strategy”

Coast Survey publishes new international chart for navigation between Florida and Cuba

As the nation’s nautical chartmaker, Coast Survey produces the country’s traditional paper charts for coastal waters, territorial waters, and the Great Lakes. We maintain the Print-on-Demand charts that you can purchase from OceanGraphix and East View Geospatial. We make the nation’s raster navigational charts (NOAA RNC®) and electronic navigational charts (NOAA ENC®). And the free downloadable BookletCharts. But did you know we produce international charts, too? NOAA has five international charts covering the Northeastern Pacific Ocean and the Bering Sea… and we just published our sixth, for the opposite coast.
International mariners entering U.S. waters around southwestern Florida now have a new international (INT) nautical chart to help ease their transit. The new chart, INT 4148, has the same information as Chart 11420, Havana to Tampa Bay, but the depictions are converted to the metric system. (Most U.S. charts use either feet or fathoms for depth measurements). INT charts also use some different symbology, so Coast Survey makes those modifications as well.

Chart 11420 - INT 4148
The image on the left is a close-up of Dry Tortugas on NOAA Chart 11420. The image on the right is the same area on INT 4148. Note that converting fathoms to meters results in different contour lines for the same area.

Continue reading “Coast Survey publishes new international chart for navigation between Florida and Cuba”

NOAA Ship Thomas Jefferson prepared for 2013 survey season

By Ensign Brittany Anderson, Junior Officer, NOAA Ship Thomas Jefferson
After a quiet winter at home port, the NOAA Ship Thomas Jefferson completed her sea trials this week in preparation for the 2013 field season.
Each year, prior to departing for working grounds, the Thomas Jefferson transits to the Chesapeake Bay to perform tests on the ship’s and launches’ systems and hydrographic survey equipment. Crews conduct numerous tests to check the accuracy and precision of multibeam echosounders, side scan sonar, and the sophisticated suite of programs that process all the data. Additionally, this is an opportunity to ensure the safety of the vessel and her crew by performing numerous safety drills and readdressing safety standards and operating procedures.

Screen grab of sonar images
This is a screen capture of the simultaneous multibeam and side scan coverage of an obstruction used to verify the NOAA Ship Thomas Jefferson’s imaging and bathymetric sonars.

Continue reading “NOAA Ship Thomas Jefferson prepared for 2013 survey season”