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.
Speaking at the Blake‘s commissioning ceremony were (left to right) Mayor William Gardner Hewes, U.S. Senator Thad Cochran, Rear Admiral Gerd Glang, and Jon Dasler, director of Marine Services, David Evans and Associates, Inc. Photo by Tim Osborn, NOAA.
Glang pointed out that, for the past 15 years, NOAA has fulfilled its charting mission through a successful partnership with private sector surveying firms.
“David Evans and Associates, who owns and will operate the Blake, has been an important partner in that effort,” Glang said. “They conducted their first survey for Coast Survey in 1999. In the last 15 years, they have completed 72 hydrographic surveys – nearly 1200 square nautical miles – in the coastal waters and bays of seven different states.”
“David Evans and Associates consistently produces outstanding hydrographic surveys for NOAA. And, they are pioneers in applying new surveying technologies and methods.”
U.S. Senator Thad Cochran, who did the honor of breaking a Champagne bottle across the Blake‘s bow, spoke of the vessel’s value to the nation.
“The survey vessel Blake is an example of the skilled workmanship of our Gulf Coast shipbuilding industry. This vessel will provide an important national seagoing capability to perform valuable research for our state and nation,” Cochran said. “I commend David Evans and Associates, Inc. for its hard work in constructing a world-class research vessel that can serve our nation for decades to come.”
The custom-built Blake is an aluminum catamaran. The vessel is designed to be a stable, efficient and cost-effective survey platform with wave-piercing bows, tier-3 diesel engines, twin 50-kilowatt generators, and a full suite of state-of-the-art survey instrumentation. Built by Geo Shipyard, Inc. in New Iberia, Louisiana, the new vessel will complement the firm’s national operations and expand DEA’s hydrographic and geophysical survey and marine science capabilities in the Gulf of Mexico and beyond.
The new vessel is named after the 19th century U.S. Coast and Geodetic Survey steamer George S. Blake, an oceanographic and hydrographic vessel renowned for testing innovative technologies such as the Pillsbury current meter, which was the first deep-sea current meter, and the Sigbee deep-sea sounding machine. The federal Blake was commissioned in 1874, operated in the Gulf of Maine, the Gulf of Mexico, and the Caribbean Sea. The Blake’s accomplishments are documented in Three Cruises of the BLAKE, by Alexander Agassiz. The vessel had numerous seafloor features named after her, including the Blake Abyssal Plain, Blake Plateau, Blake Canyon and Blake Ridge, all of which are off the southeastern coast of the U.S.
Noting the advanced technologies onboard the S/V Blake, that were not even imagined 140 years ago when the USC&GS steamer Blake did it’s innovative work, Glang congratulated the firm on its significant contribution to the survey mission.
“I look forward to the legacy of accomplishment and innovation that the S/V Blake begins today,” Glang said, “and to a sustained partnership between David Evans and Associates and NOAA.”
For more, see this news report from WLOX TV.
by Ensign Diane Perry, onboard NOAA Ship Thomas Jefferson
From 2005 through today, NOAA Ship Thomas Jefferson has been surveying Long Island Sound, one project area at a time. Some of the area was last surveyed between the late 1800s and 1939. For the 2014 field season, Thomas Jefferson was assigned her final Long Island Sound project, 89 square nautical miles of Eastern Long Island Sound, Fisher Island Sound, and Western Block Island Sound. When this project is complete, we will have resurveyed over 95% of Long Island Sound and all of Block Island Sound with modern survey technology that allows for a complete picture of the seafloor and highly accurate soundings.
This image depicts Thomas Jefferson‘s bathymetry from eastern Long Island Sound to Gardiner’s Bay.
Data acquired by the Thomas Jefferson will update the region’s nautical charts and will serve other users within NOAA, the U.S. Geological Survey, and a New York and Connecticut Long Island Sound Seafloor mapping initiative. The mapping initiative creates products for habitat mapping and geological interpretation, and supports state planning and management of this vital resource.
Bringing the hydrography of this area into modern times has been a huge task, and we appreciate being welcomed as a part of the area’s maritime community! When Thomas Jefferson was asked to participate in the Connecticut Maritime Heritage Festival in New London this summer, the crew was excited for the opportunity to showcase the results of nearly a decade of surveying effort.
On September 12, Thomas Jefferson docked at City Pier, dressed in semaphore flags to welcome crowds lining the pier eager for guided tours. As the sun set, Thomas Jefferson hosted judges and the announcer during the festival’s lighted boat parade. The ship continued to provide tours the next day, and was the highlight of the event for many visitors. More than 500 visitors toured from fantail to bridge, learning about the ship’s mission and hydrographic survey operations, life at sea, and maritime heritage of NOAA and the Office of Coast Survey.
As the festival ended, Thomas Jefferson’s crew cast off from City Pier to return to their Long Island Sound working grounds and continue survey operations. We are excited to return to the survey area and complete the 2014 Long Island Sound mapping project.
NOAA Ship Thomas Jefferson dressed in semaphore flags for Connecticut’s 2014 Maritime Heritage Festival. Photo by Lt. Cmdr. Abigail Winz.
Cmdr. James Crocker and hydrographic assistant survey technician Alex Ligon wrestle with wayward semaphore flags to keep NOAA Ship Thomas Jefferson looking her best for Connecticut’s 2014 Maritime Heritage Festival. Photo by Lt. Cmdr. Abigail Winz.
Lt. Megan Guberski greets a tour group about to board NOAA Ship Thomas Jefferson during Connecticut’s 2014 Maritime Heritage Festival. American flags patriotically line New London train station in the background for the special event. Photo by Lt. Cmdr. Abigail Winz.
From left to right, “Teacher at Sea” Dr. Laura Guertin, hydrographic survey technician Allison Stone, Ensign Stephen Moulton, and general vessel assistant James Johnson dedicated their time to spreading the word about NOAA’s hydrographic mission.
Port officials around the country know they can rely on the expert advice of Coast Survey’s navigation managers, cartographic experts, and hydrographers as the ports plan the essential improvements necessary for a thriving maritime economy. One example of Coast Survey assistance is in Port Fourchon, Louisiana, where port officials have determined that the volume and density of vessels have reached a level that requires one or more offshore anchorage areas. Sending vessels to a designated anchorage reduces the population in port and provides a safe area for vessels to power down their engines (rather than hold in place offshore in dynamic positioning mode), which would improve both safety and efficiency in the area known as the “Gulf’s Energy Connection.”
Using nautical charts of the areas, Coast Survey provided a range of possible sites that helped port officials narrow their anchorage options. After navigation manager Tim Osborn worked with the officials, and with additional requirements in hand, Coast Survey cartographic expert Steve Soherr provided a digital graphic showing likely areas, with information that guards against pipeline and platform interference with safe anchorage.
As additional safeguards, hydrographic surveys will likely be needed to confirm that the seafloor of the recommended areas are free of hazards and do not have uncharted pipelines. Coast Survey will work with the Department of Interior’s Bureau of Ocean Energy Management and Bureau of Safety and Environmental Enforcement as needed.
The port will bring its recommendations to the U.S. Coast Guard, who has the authority to designate the anchorages.
Cartographic adviser Steve Soherr, with Coast Survey’s Navigation Services Division, produced this graphic showing the lease blocks, pipelines, and platforms offshore of Fourchon and Belle Pass. Port officials and others will use the image to examine areas offshore that are both free of pipeline hazards and within the depth range required to accommodate offshore service vessels and the other fleets seen at Fourchon.
Photo by Lt. Timothy Smith
This summer, the Bering Sea Alliance hosted a private-public summit in Gambell, Alaska, to discuss Arctic resource development and infrastructure. (See page 10 in this edition of the Nome Nugget for a good summary of the meeting.) Lt. Tim Smith, NOAA Coast Survey’s regional manager for Alaska, updated the participants on the status of Arctic nautical charts and described NOAA’s Arctic Nautical Charting Plan. He also outlined the preliminary 2015 survey plans to acquire hydrographic data around Point Hope, Point Barrow, Port Clarence, and Kotzebue Sound, as NOAA strives to ensure the navigational safety of the increasing ship traffic through Arctic waters.
In addition to his role as navigation manager and NOAA Corps officer, Lt. Smith is one of NOAA’s best photographers. His photos of the area around Gambell are better than words in conveying the beauty of this remote area of Alaska.
Photo by Lt. Timothy Smith
With the photo below, Tim reminds us that black and white photos can sometimes reveal more than full color.
Photo by Lt. Timothy Smith