By Lt. Taylor Krabiel
In the 1950s, U.S. Coast and Geodetic Survey (USC&GS) Pathfinder surveyed the Pribilof Islands with the latest technologies to chart previously unsurveyed waters and bring the islands into a common datum with the mainland. Fast forward 71 years and NOAA Ship Fairweather continues this work. Despite the decades and technologies that separate the two ships, they share many commonalities in their mission and their surveying techniques.
Continue reading “Surveying the Pribilof Islands, from Pathfinder to Fairweather”
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.
Continue reading “Vessel pilots transition to new chart format”
By Lt.j.g. Carly Robbins, junior officer in charge R/V Bay Hydro II
Situated on the east side of the Chesapeake Bay, 162 nautical miles above the Virginia Capes, Elk River is the western approach to the Chesapeake and Delaware Canal. The canal is one of the busiest waterways in the country. It connects the Chesapeake and Delaware Bays, servicing the ports of Baltimore, Wilmington, and Philadelphia. The U.S. Army Corps of Engineers regularly surveys the dredged channels in the approaches and in the canal, but they are not responsible for the remaining waters of the Elk River. The Elk River was last surveyed in the early 1900s, making depths on the nautical chart close to 100 years old! As a result, NOAA R/V Bay Hydro II was tasked to conduct a modern hydrographic survey of Elk River in Spring 2023.
Continue reading “Research vessel Bay Hydro II makes history on Mayland’s Elk River”
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.
Continue reading “NOAA Custom Chart version 2.0 now available to the public“
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.
Continue reading “Help keep nautical charts up to date through citizen science”
By Hydrographic Assistant Survey Technician Sarah Thompson
April 10, 2022 marked the beginning of NOAA Ship Thomas Jefferson and her crew’s field season and transit up through the St. Lawrence River, Lake Ontario, and into Lake Erie. This field season, Thomas Jefferson’s base of operations will be in Cleveland, Ohio and has the distinction of being the first NOAA ship to survey the Great Lakes in over 30 years. On the way, Thomas Jefferson had the opportunity to respond to a U.S. Coast Guard request to survey and obtain modern bathymetry on Pollock Rip Channel off the Massachusetts coast.
Continue reading “Surveying south of Cape Cod, Massachusetts in transit to the Great Lakes”
Nautical charts have always contained a great amount of information – even more so with electronic navigational charts. This information is constantly being updated, necessitating the need to keep your nautical chart suite as current as possible. The Office of Coast Survey’s online NOAA Custom Chart application enables users to create nautical charts directly from the latest official NOAA electronic navigational chart (NOAA ENC®) data. Users now have the ability to create their own nautical charts using individually set parameters, and then save this custom nautical chart as a file that can be viewed or printed.
Continue reading “Have it your way – creating customized nautical charts using the latest data”
In 2022, NOAA and NOAA contractors will survey U.S. coastal waters and beyond, including multiple missions in the Great Lakes. As the volume, value and size of marine vessels in U.S. waters continues to grow, it is essential that NOAA increase the accuracy and frequency of surveys. A great amount of data on nautical charts of the Great Lakes is more than 50 years old, and only about 5 to 15 percent of the Great Lakes are mapped to modern standards using remote sensing methods such as light detection and ranging and sound navigation and ranging.
Continue reading “NOAA focuses on the Great Lakes for the 2022 field season”
The new NOAA Chart Display Service (NCDS) renders NOAA electronic navigational chart (NOAA ENC®) data with “traditional paper chart” symbology in online and offline applications for which a basemap of nautical chart data is desired, including GIS, web-based, and mobile mapping applications. The new service uses symbols, labels, and color schemes familiar to those who have used NOAA paper nautical charts or the NOAA Custom Chart application. NCDS is available as Esri REST Map Service, OGC Web Map Service (WMS), and MBTiles formats.
Continue reading “Coast Survey launches NOAA Chart Display Service”
NOAA hydrographic survey ships and contractors are preparing for the 2022 hydrographic survey season in U.S. coastal waters and beyond. The ships collect bathymetric data (i.e. map the seafloor) to support nautical charting, modeling, and research, but also collect other environmental data to support a variety of ecosystem sciences. NOAA considers hydrographic survey requests from stakeholders such as marine pilots, local port authorities, the Coast Guard, and the boating community, and also considers other hydrographic and NOAA science priorities in determining where to survey and when. Visit our “living” story map to find out more about our mapping projects and if a hydrographic vessel will be in your area this year!
Continue reading “NOAA releases 2022 hydrographic survey season plans”