NOAA’s Office of Coast Survey, the University of Southern Mississippi (USM), and Saildrone accomplished a key milestone in the research and testing of unmanned technology that can lead to enhanced seafloor mapping capabilities with the launch of the first Saildrone — a wind-driven and solar-powered unmanned surface vehicle (USV) — equipped with multibeam echo sounder technology in the Gulf of Mexico. NOAA anticipates the success of this mission and technical achievement will lead to mapping projects in the Arctic.Continue reading “Saildrone launched with seafloor mapping capabilities in the Gulf of Mexico shows promise for remote Arctic mapping”
NOAA’s Office of Coast Survey is the nation’s nautical chartmaker, and maintains a suite of more than a thousand nautical charts. Coast Survey is responsible for charting U.S. waters and Great Lakes covering 3.4 million square nautical miles (SNM) of water and 95,000 miles of coastline.
NOAA’s hydrographic survey ships along with hydrographic contractor vessels, recently kicked off the 2019 hydrographic survey season. These surveys not only update the suite of nautical charts, but also help to maintain the safety of maritime commerce, recreational boaters, natural ecosystems, and much more. Operations are scheduled for maritime priority areas around the country and are outlined in Coast Survey’s “living” story map. Here is a list of where they are headed this year:Continue reading “NOAA releases 2019 hydrographic survey plans”
NOAA recently released 13 new large-scale electronic navigational charts (NOAA ENC®) of Etolin Strait, Alaska. These charts provide a nearly twenty-fold increase in scale over the previous ENC coverage. New Etolin Strait hydrographic surveys and the resulting ENCs served as a pilot project for the overall rescheming of the entire NOAA ENC suite with a regular, gridded layout for ENC charts, as outlined in NOAA’s National Charting Plan. No corresponding NOAA raster nautical chart products in Etolin Strait will be produced. This is in keeping with Coast Survey’s “ENC-only” production concept, which generally maintains the current raster chart product coverage, but only creates new larger scale coverage in the ENC product line.
The 2017 Atlantic hurricane season was powerful, with the strongest storms occurring consecutively from late August to early October. The sequential magnitude of four hurricanes in particular—Harvey, Irma, Maria, and Nate—made response efforts challenging for NOAA’s Office of Coast Survey. Coast Survey summarized this season’s response efforts along with the efforts of NOAA Ship Thomas Jefferson (operated by NOAA’s Office of Marine and Aviation Operations) in the following story map. Continue reading “NOAA Office of Coast Survey wraps up a busy 2017 hurricane season”
NOAA’s Office of Coast Survey maintains the nautical charts and publications for U.S. coasts and the Great Lakes. This is over a thousand charts covering 95,000 miles of shoreline and 3.4 million square nautical miles of waters. Measuring depths and determining new dangers to navigation in this large area is a monumental job given the seafloor is constantly changing.
One of NOAA Coast Survey’s biggest tasks during the winter months is to plan hydrographic survey projects for the coming field season. Survey planners consider requests from stakeholders such as marine pilots, local port authorities, the Coast Guard, and the boating community, and also consider other hydrographic priorities in determining where to survey and when. Continue reading “NOAA releases 2017 hydrographic survey season plans”
The Inner Harbor Navigation Channel in New Orleans facilitates the transportation of tens of millions of tons of cargo each year. Since the channel was recently closed for repairs, a temporary Chandeleur Sound Alternate Route was established to ensure the flow of commerce between the western and eastern reaches of the Gulf Intracoastal Waterway. NOAA experts assisted with the alternate route development in various ways, collaborating with the U.S. Coast Guard, U.S. Army Corps of Engineers, and the maritime industry.
Under beautiful blue skies yesterday in Gulfport, Mississippi, David Evans and Associates, Inc. commissioned its new 82-foot hydrographic survey and scientific vessel Blake. Rear Admiral Gerd Glang, Coast Survey’s director, welcomed the addition to the nation’s hydrographic surveying assets. DEA is under contract to NOAA to provide critical hydrographic data for updating the nation’s nautical charts.
The 2014 hydrographic survey season is underway, with the NOAA fleet beginning its projects for this year.
Have you ever wondered how Coast Survey goes about determining where to survey and when? Several considerations go into prioritizing survey plans, which are laid out several years in advance. Coast Survey asks specific questions about each potential survey area.
- Is it considered a critical area? If so, how old are the most current survey data?
- Have local pilots or port authorities submitted reports of shoaling, obstructions or other concerns?
- Does the U.S. Coast Guard or other stakeholders from the maritime community (e.g., fisheries, energy, pipelines) need surveys for economic development or ecological protection?
Coast Survey’s 2014 projects reflect these priorities.
–By Christy Fandel, Coast Survey physical scientist
Have you ever wondered what lies beneath the charted soundings on a nautical chart? While surveying Alaskan waters during the 2013 hydrographic field season, collecting bathymetry to update NOAA’s nautical charts, hydrographers revealed many interesting geologic features on the seafloor.
NOAA focuses a significant portion of our ocean mapping effort along the Alaskan coast. The Alaskan coastline represents over 50% of the United States coastline and dated nautical charts are inadequate for the increasing vessel traffic in this region. NOAA surveys are essential for providing reliable charts to the area’s commercial shippers, passenger vessels, and fishing fleets.
This past season, NOAA-funded hydrographic surveys in Alaska revealed many interesting geological features on the seafloor. Three surveys, in particular, took place in southeastern Alaska in the Behm Canal, along the Aleutian Chain within the coastal waters surrounding Akutan Island, and around Chirikof Island.
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.