The end of traditional paper nautical charts

October 22, 2013

Most mariners now use Print-on-Demand nautical charts that are up-to-date to the moment of printing.

High resolution (Credit: NOAA)

NOAA’s Office of Coast Survey, which creates and maintains the nation’s suite of over a thousand nautical charts of U.S. coastal waters, today announced major changes ahead for mariners and others who use nautical charts. Starting April 13, the federal government will no longer print traditional lithographic (paper) nautical charts, but will continue to provide other forms of nautical charts, including print on demand charts and versions for electronic charting systems.

“Like most other mariners, I grew up on NOAA lithographic charts and have used them for years,” said Rear Admiral Gerd Glang, director of NOAA’s Office of Coast Survey. “We know that changing chart formats and availability will be a difficult change for some mariners who love their traditional paper charts, but we’re still going to provide other forms of our official charts.”

Since 1862, those lithographic nautical charts -- available in marine shops and other stores -- have been printed by the U.S. government and sold to the public by commercial vendors. The decision to stop production is based on several factors, including the declining demand for lithographic charts, the increasing use of digital and electronic charts, and federal budget realities.

“With the end of traditional paper charts, our primary concern continues to be making sure that boaters, fishing vessels, and commercial mariners have access to the most accurate, up-to-date nautical chart in a format that works well for them,” said Capt. Shep Smith, chief of Coast Survey’s Marine Chart Division. “Fortunately, advancements in computing and mobile technologies give us many more options than was possible years ago.”

NOAA will continue to create and maintain other forms of nautical charts, including the increasingly popular Print on Demand (POD) charts, updated paper charts available from NOAA-certified printers. NOAA electronic navigational charts (NOAA ENC®) and raster navigational charts (NOAA RNC®), used in a variety of electronic charting systems, are also updated weekly and are available for free download from the Coast Survey website. NOAA will also announce a new product full-scale PDF (Portable Digital Format) nautical charts, available for free download on a trial basis online.

Electronic charts, layered with multi-faceted information, are increasingly popular with commercial pilots around the world.

High resolution (Credit: NOAA)

The world of navigation is benefiting from advances in technology, Smith explained. He said that NOAA will consult with chart users and private businesses about the future of U.S. navigation, especially exploring the use of NOAA charts as the basis for new products.

“Customers frequently ask us for special printed features, such as waterproof charts, special papers, or chart books containing additional information,” he said. “We are investigating new opportunities for companies to fill these market niches, using the most up-to-date information directly from NOAA.”

NOAA’s Office of Coast Survey is the nation’s nautical chartmaker. Originally formed by President Thomas Jefferson in 1807, Coast Survey updates charts, surveys the coastal seafloor, responds to maritime emergencies, and searches for underwater obstructions that pose a danger to navigation. Follow Coast Survey on Twitter @nauticalcharts, and check out the NOAA Coast Survey blog at noaacoastsurvey.wordpress.com for more in depth coverage of surveying and charting.

NOAA’s mission is to understand and predict changes in the Earth's environment, from the depths of the ocean to the surface of the sun, and to conserve and manage our coastal and marine resources. Join us on Facebook, Twitter, Instagram and our other social media channels.

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Paper shows Japan feared aftershocks at nuke plant (AP)

TOKYO – Japan feared three months after the Fukushima nuclear power plant was hit by a tsunami that aftershocks could further damage one of its fuel storage pools, causing rods inside to melt and spew radiation within hours, according to a newly released document.

The Japan Nuclear Energy Safety Organization said it carried out a simulation that showed some 1,500 mostly used fuel rods at the plant's No. 4 reactor building could start breaking in two hours if aftershocks further damaged the pool and caused cooling water to escape. The fuel rods could start melting within eight hours, the organization said in a report dated June 30 and published Friday.

The report shows that the pool remained vulnerable for nearly four months until its operator completed reinforcement work in July. Tokyo Electric Power Co. had said before then that the building could withstand major aftershocks without reinforcement, but made repairs after acknowledging structural damage and water leaks from the pool area.

The March 11 quake and tsunami triggered meltdowns at the plant's three reactors. Explosions also damaged their buildings, plus Unit 4 next to them.

The simulation was based on a scenario that cooling water was lost in the Unit 4 spent fuel storage pool, located on the top floor of the building. The Unit 4 pool was considered high risk as it contained more fuel than the other three pools, as it also stored fuel rods that had been moved from the unit's reactor core, which was being fitted with new parts.

In the report, the government-funded JNES said a loss of pool water due to additional cracks from aftershocks could cause the fuel rods to overheat. Their casings could break and start spewing radiation in about 2 hours. Fuel pellets inside each rod could start melting within 7.7 hours at about 2,800 Celsius (5,000 Fahrenheit), it said.

The report was part of hundreds of pages of documents containing simulation results on dozens of accident scenarios by JNES earlier in the crisis.

Plant workers are still struggling to contain radiation still leaking from the plant, although the amount is far less than before.

TEPCO said Friday that Unit 1 — one of the most damaged buildings — now has an outer shell made of airtight polyester designed to contain radioactive particles inside the building. Similar covers are also planned for other buildings.

Government officials are also making massive decontamination efforts in areas around the plant, from where tens of thousands of people had to evacuate.

Recent discoveries of radiation "hot spots" in and around Tokyo have also caused fears among people there, where many concerned parents routinely check their neighborhoods for radiation. In most cases the reading is estimated to be below the internationally accepted annual limit, but critics say the standard exceeds Japan's cap before the accident and the government should expand the scope of decontamination.

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