Archive for the ‘Ferdinand R. Hassler’ Category
In a step towards greater efficiency in NOAA’s hydrographic surveying, experts onboard the NOAA Ship Ferdinand R. Hassler just wrapped up the first extended testing of Coast Survey’s new bathymetric mapping autonomous underwater vehicle (AUV). From Sept 3 to 13, the vehicle completed ten missions lasting up to 16 hours during day and night, while the ship continued with its assigned hydrographic surveys in the approaches to Portsmouth, New Hampshire.
This AUV is equipped with high resolution seabed mapping equipment similar to the ship’s, including a high accuracy positioning system and multibeam echosounder capable of producing seamless maps of the seafloor.
During this cruise, Coast Survey and Hassler personnel developed safe deployment and recovery procedures for the 675-pound, 13-foot vehicle, and they standardized mission programming and monitoring protocols to integrate the AUV with the shipboard survey operations. Future tests will refine these techniques, and focus on integrating the AUV’s seabed mapping data into the ship’s data processing workflow.
Coast Survey’s AUV team lead Rob Downs and Lt. Adam Reed prepare to initiate the AUV mission. Chief boatswain Brad Delinski, hydro senior survey technician David Moehl, and able-bodied seaman Bruce Engert guide the AUV to the launch position, while field operations officer Lt. Madeleine Adler directs the operation. Photo credit: Lt. Olivia Hauser
NOAA’s newest survey ship, the Ferdinand R. Hassler, arrived at her new homeport of New Castle, New Hampshire, earlier this month, and began her first New Hampshire survey project today. Hassler was commissioned in Norfolk, Va., in June 2012. She has been undergoing sea trials, training, and certification, and responded to Hampton Roads’ request for rapid survey assistance after Hurricane Sandy last year.
NOAA Ship Ferdinand R. Hassler comes into her new homeport in New Castle, New Hampshire
Hassler will operate mainly along the Atlantic and Gulf coasts, Caribbean Sea and Great Lakes, acquiring data to update NOAA’s nautical charts. Her mission, however, is not limited to collecting bathymetry, explains retired NOAA Capt. Andy Armstrong, co-director of the Joint Hydrographic Center/Center for Coastal and Ocean Mapping at the University of New Hampshire. Armstrong points out that “Hassler’s arrival is the impetus for improving the already dynamic synergies between NOAA’s hydrographic program and CCOM’s research.”
Local government officials have provided a warm welcome to Hassler’s crew. Noting “the enthusiastic welcome from the townspeople and local businesses,” Hassler commanding officer Lt. Cmdr. Ben Evans predicts a great future for a cooperative working partnership between the ship, the town, and the university.
The first cooperative project is coming up, during the survey project that starts today. While charting the approaches to New Hampshire, Hassler will be a testing platform for a new autonomous underwater vehicle currently being analyzed by the Office of Coast Survey and UNH researchers.
The Ferdinand R. Hassler is a state-of-the-art coastal mapping vessel. The 124-foot ship will conduct basic hydrographic surveys of the sea floor using side scan and multibeam sonar technologies. The ship is also equipped to deploy buoys and unmanned submersibles and conduct general oceanographic research. Ferdinand R. Hassler’s twin-hull design is particularly suited to NOAA’s mission to map the ocean floor, as it is more stable than a single-hull vessel.
For your reading and viewing pleasure, here are some of the news reports about Ferdinand R. Hassler’s arrival in New Hampshire…
Portsmouth Herald: NOAA vessel to map the ocean floor along East Coast
Foster’s Daily Democrat: They came to see the ocean floor: ship to update nautical maps of area seabed
WMUR Ch 9: Ship has mission to map ocean floor
AP (via Boston Globe): NH becomes home port of newest NOAA mapping vessel
NOAA Ship Ferdinand R. Hassler departed from NOAA’s Marine Operation Center in Norfolk this morning, to start post-SANDY surveys of critical deep water channels.
NOAA’s newest survey ship, the Ferdinand R. Hassler, began survey operations today in support of the U.S. Coast Guard efforts to re-open the Port of Virginia. Hassler was in port at NOAA’s Marine Operations Center – Atlantic in Norfolk, Virginia, for maintenance when Hurricane Sandy affected the area. The ship’s crew spent Monday completing the work and system tests necessary to get underway once the storm passed, and has now been returned to limited operational status.
Lt. Cmdr. Ben Evans, Hassler’s commanding officer, got the ship underway today (Tuesday), and will return Wednesday evening. The Coast Guard Captain of the Port for Hampton Roads requested that the ship survey critical portions of Thimble Shoal Channel and Chesapeake Channel, the deep draft routes to the ports of Hampton Roads and Baltimore.
“Surveying the deepest draft channels will allow the Coast Guard to decide when to re-open the port to unrestricted traffic without unnecessary delay,” Evans explained. “The ports of the Chesapeake Bay are critical to the U.S. economy and national security, so we need to make this effort as soon as the ship is ready to sail.”
The need for hydrographic surveying is critical. There are 78 large vessels, including portions of the Navy’s Atlantic Fleet, waiting to transit through the entrance to Chesapeake Bay.
The Hassler was also a pivotal survey asset last year, as Hampton Roads resumed operations after Hurricane Irene. At that time, Hassler was one of the three NOAA survey vessels used to clear the port from dangers caused by underwater debris or shoaling. Their work enabled a rapid resumption of shipping and port operations in 2011.
“Delays in shipping, even minor ones, cost the economy millions each year,” explained Rear Admiral Gerd Glang, director of NOAA’s Office of Coast Survey. “After Hurricane Irene last year, NOAA’s rapid maritime response paid dividends in the Hampton Roads area of Virginia, where an average of $5 million worth of cargo is shipped in or out, every hour. This year, rapid response is just as critical.”
The Norfolk Custom District is the country’s 9th largest in terms of the value of total imports and exports moving through the port, with nearly $55 billion in total trade in 2011.
*** Learn more about how NOAA’s National Ocean Service responds to hurricanes.
by Lt. Madeleine Adler, NOAA, Navigation Officer, NOAA Ship Ferdinand R. Hassler
Three-dimensional model of the seabed in the vicinity of USS New Jersey (north) and USS Virginia (south) created with Hassler multibeam echo sounder data.
NOAA Ship Ferdinand R. Hassler recently submitted a multibeam echo sounder survey of two sunken World War I era battleships to the Office of Coast Survey. Hassler, which was commissioned earlier this summer, surveyed the site of these two wrecks while transiting through the area during test and evaluation operations in 2011, and has been using the resulting dataset for calibration purposes since then. Although the wreck locations were well known, they had never been surveyed with modern techniques.
The ships are USS New Jersey and USS Virginia, which were intentionally sunk during aerial bombing experiments in 1923. U.S. Army Colonel Billy Mitchell, a pioneer of military aviation, urged the Navy to investigate the effectiveness of aerial bombing against surface vessels. As part of a series of tests, the Navy anchored the two obsolete “White Fleet” battleships off Cape Hatteras in September 1923 to serve as targets. Bombers under Mitchell’s direction sank both ships in short order. The success of these tests had a significant influence on subsequent development of U.S. air power and air defense for naval vessels.
Hydrographic survey systems require thorough calibration and testing before data can be accepted for application to NOAA nautical charts. New Jersey and Virginia rest in water approximately 100 meters deep, making them excellent test targets for Hassler’s Reson 7111 mid-water depth multibeam echo sounder system. Hassler surveyed the wrecks during a trial voyage from Pascagoula, Miss., to Norfolk, Va., in 2011, and the crew used this dataset and others to calibrate the echo sounder. Hassler’s survey systems are now fully operational, and the survey is ready for submission.
Coast Survey will use the survey of USS New Jersey and USS Virginia to update nautical charts of the area, and NOAA’s Office of National Marine Sanctuaries personnel will study it to further their understanding of marine archeology and the seafloor in the vicinity of Monitor National Marine Sanctuary.
NOAA Ship Ferdinand R. Hassler was commissioned on 8 June 2012, and continues to survey mid-Atlantic coastal waters for charting, fisheries and ocean exploration.
Surveyed wreck site (lower right corner) overlaid on Chart 11555. Site is 16 nautical miles southeast of Cape Hatteras, North Carolina.