electronic navigational chart – Office of Coast Survey

December 18, 2024

NOAA updates bridge clearances crossing one of the most important waterways in the United States

An image showing the Crescent City Connection Bridges taken from the left ascending bank of the Mississippi River with the city of New Orleans in the background.

The Port of New Orleans, is one of the largest ports in the United States. It spans both sides of the Mississippi River in the state of Louisiana, with its lower limit situated approximately 80 miles above the confluence of three major passes used to access the river from the Gulf of Mexico. The city of New Orleans serves as the primary commercial hub within the port’s limits. As one of the largest cities along the Gulf Coast, it is a natural gateway for trade, connecting the vast central and southern regions of the nation, particularly the entire Mississippi River Valley, via numerous inland water routes.

August 20, 2024August 20, 2024

Data dissemination web interface supports navigation

Waves on the sea beach on a cloudy rainy day

Imagine navigating a vessel along the coast and planning the approach to your destination, whether that be a local marina or large vessel berth in a harbor. What factors affecting the movement of the vessel should you be aware of once underway and in transit through the entrance and into the port? These may include observations on the present and forecasted weather, water current speed and direction, water depths and tidal direction, and any anomalies or warnings that may exist. Knowing what these factors are will assist you in preparing your vessel for safe passage to the destination.

Continue reading “Data dissemination web interface supports navigation”

May 1, 2024May 2, 2024

The Office of Coast Survey’s ongoing response to the Francis Scott Key Bridge disaster

An image of the largest outbound vessel in the Fort McHenry Channel since the Francis Scott Key Bridge collapse.

On Tuesday, March 26, 2024, the 984-foot M/V DALI allided with the Francis Scott Key Bridge near Baltimore, Maryland, sending the bridge tumbling into the Patapsco River, resulting in the tragic loss of six construction workers, and triggering a local, state, and federal response. Large sections of the bridge’s structure lay across the main shipping channel into the Port of Baltimore closing the deepest shipping lane into and out of the port, and resulting in an estimated loss of $15 million in daily economic activity for the area. All shipping traffic was diverted from the area, enabling first responders to conduct high-priority rescue and recovery operations and allowing highly trained salvage crews to begin the arduous task of removing bridge wreckage. Due to the amount of debris in the water, it was evident that salvage operations would take some time, and the priority at the time was to open the port for at least some vessel traffic.

January 19, 2024January 19, 2024

A look back at 2023 and the Office of Coast Survey’s significant activities throughout the year

An image of a rocky coastline and low clouds with the title Coast Survey Year in Review, superimposed over it.

NOAA’s Office of Coast Survey is reflecting on a successful and remarkable 2023! We completed many significant activities with meaningful impacts. As we look ahead to more progress in 2024, we are proud to share some highlights of the past year in our Coast Survey Year in Review ArcGIS StoryMap.

January 4, 2024January 4, 2024

Bringing nautical charts of the Erie Canal into the digital era

The construction of the Erie Canal was one of 19th Century America’s most significant feats of engineering. Built between 1817 and 1825, the canal provided a water route from Albany to Buffalo, New York, nearly 363 miles to the west. The Canal connected the Hudson River with the Great Lakes via parts of the Mohawk River, through various land cuts and natural lakes. The New York State Public Works Department and the US War Department’s Corps of Engineers began geographically documenting the canal’s route with maps and nautical charts beginning in 1917. The Department of Commerce’s National Oceanic and Atmospheric Administration took ownership of the charts in the early 1970’s and has maintained and updated them for over 50 years. Currently, these charts are undergoing changes to usher them into the digital era of electronic navigational charts.

Check out our digitizing the Erie Canal ArcGIS StoryMap linked here or click the image below!

An image showing the Erie Canal at Waterford, New York during a festival. Credit: Erie Canalway National Heritage Corridor/Halldor K. Sigurdsson.

August 28, 2023October 6, 2023

Vessel pilots transition to new chart format

NOAA’s Precision Marine Navigation (PMN) program aims to seamlessly integrate high-resolution bathymetry and high accuracy positioning and shoreline data with the forecast data of water levels, currents, waves, and weather forecasts. This information can be easily accessed and integrated into maritime electronic charting systems and other decision support tools so mariners can plan their transits and make decisions while at sea and coming to and from port. A key component of this program is providing vessel pilots with detailed depth information to ensure safety of vessel transits and that critical under keel clearance safety margins are maintained. Electronic navigational charts, although accurate, typically do not provide the detail that pilots prefer.

February 21, 2023

NOAA Custom Chart version 2.0 now available to the public

A graphic of the NOAA Custom Chart blog banner showing the acronym NOAA in blue and a chart layered behind the words Custom Chart.

On February 14, 2023, NOAA’s Office of Coast Survey released NOAA Custom Chart version 2.0, a dynamic map application, which enables users to create their own paper and PDF nautical charts derived from the official NOAA electronic navigational chart (NOAA ENC®), NOAA’s premier nautical chart product.

August 31, 2022

Help keep nautical charts up to date through citizen science

A graphic showing an artistic Citizen Science banner.

NOAA maintains a suite of nearly 2000 electronic navigational charts (NOAA ENC®), as well as the ten volume United States Coast Pilot®. The seafloor and coastline are dynamic environments, which means that our products are constantly scrutinized for possible changes. Each year we make thousands of updates to ENCs, ensuring we are providing the most accurate products possible. The source data for most of these updates comes from NOAA or contractor surveys or from our federal partners, such as the U.S. Army Corps of Engineers and the U.S. Coast Guard. However, we also rely on many other data sources to help keep our ENCs up-to-date.

July 27, 2022August 29, 2022

NOAA contributes to Empowering Women in Hydrography through at-sea experience, part 1

An image showing all woman officer hydrographers standing in front of NOAA Ship Rainier.

The Empowering Women in Hydrography project is a global effort led by the International Hydrographic Organization and Canada that seeks to initiate, organize, and track a series of activities and initiatives which will enable more women to participate equitably in the field of hydrography and to assume leadership roles within the hydrographic community. NOAA is contributing to the project via an ‘at-sea experience’ on NOAA hydrographic ships for three women each year over the four year lifespan of the project. After a global call for nominations, three women were selected to join NOAA ships for the 2022 survey season. Sub-Lieutenant Mercy Modupe Ogungbamila from the Nigerian Navy joined NOAA Ship Rainier from July 5 to 15, 2022 while surveying from Guam to Saipan.

May 24, 2022

Conducting survey operations with Coast Survey’s navigation response teams

An image showing the navigation response team retrieving the survey vessel from the water.

Strategically placed around the country, NOAA’s navigation response teams―30-foot survey vessels with a three-person survey team―maintain emergency readiness while checking chart accuracy in changing ports and harbors. Navigation response teams work day-to-day in ports and harbors, collecting data to update the nation’s nautical charts. They measure depths, locate obstructions, report dangers to navigation, and update features for safe navigation. Whether there is a need to investigate wrecks, check for suspected shoals, conduct surveys for coastal management, or work with other federal agencies to support homeland security, Coast Survey’s navigation response teams have the expertise to get the job done safely and efficiently.

Category: electronic navigational chart