NOAA begins 2016 hydrographic survey season   Leave a comment

New data will update nautical charts around the country

As sure as spring arrives, NOAA vessels and independent contractors are hitting the seas for the nation’s 182nd hydrographic surveying season, collecting data for over two thousand square nautical miles in high-traffic U.S. coastal waters.

NOAA Ship Ferdinand Hassler heads out to survey.

NOAA Ship Ferdinand Hassler heads out to survey.

“Nautical charts are the foundation for the nation’s maritime economy, and NOAA hydrographers spend months at sea, surveying critical areas to ensure safe navigation for the shipping, fishing, and boating communities,” said Rear Admiral Gerd Glang, director of the Office of Coast Survey.

“Spring is the traditional beginning of the survey season,” Glang explained. “After a winter of data processing, ship maintenance, and personnel refresher training, the NOAA survey ships and Coast Survey navigation response teams are anxious to get to their survey assignments.”

U.S. waters cover 3.4 million square nautical miles, including a seafloor that is constantly changing due to storms, erosion, and development. To keep the nation’s suite of over a thousand nautical charts up to date, the Office of Coast Survey annually plans hydrographic survey projects to measure water depths and identify new navigational hazards. Survey planners consider requests by marine pilots, port authorities, the Coast Guard, the boating community and others when setting the year’s schedule.

Planned 2016 survey projects

  • Penobscot Bay, Maine, most of which hasn’t been surveyed since the 1950s, will get its first modern NOAA multibeam echo sounder survey, to acquire data for needed chart updates.
  • Buzzards Bay, Massachusetts, is the subject of a multiyear project for updating charts. 2016 is the third year, and the survey ship will validate U.S. Geological Survey interferometric survey data for charting, and will align with NOAA’s Remote Sensing Division lidar data.
  • Chesapeake Bay is also the subject of a multiyear survey project for updating charts. NOAA Ship Ferdinand R. Hassler will work offshore, while launches from NOAA Ship Thomas Jefferson will survey in the vicinity of Hampton Roads concurrent to the ship’s maintenance period in drydock.
  • Wilmington, North Carolina, survey project will support the U.S. Coast Guard Atlantic Coast Port Access Route Study.
  • Savannah, Georgia, needs hydrographic survey data for the port deepening project in preparation for post-Panamax ships.
  • Sabine, Louisiana, will have a continuation of last year’s project to survey part of the approaches to Port Arthur and Calcasieu.
  • Atchafalaya, Louisiana, will have a continuation of last year’s project to survey part of the approaches to Morgan City.
  • Approaches to SW Pass, Louisiana, will be surveyed at the request of the U.S. Coast Guard and the Bureau of Ocean Energy Management, to provide new chart data for consideration of a proposed anchorage area near Port Fourchon.
  • Chandeleur Sound, Mississippi, will have surveys to acquire critical updates since Hurricane Katrina.
  • Yukon River, Alaska, will be partially surveyed to validate a new charting approach using satellite-derived bathymetry.
  • Etolin Strait, Alaska, will also validate satellite-derived bathymetry data, as well as establish a survey corridor between Nunivak Island and mainland Alaska. This project will provide data for some of the new charts identified in the U.S. Arctic Nautical Charting Plan.
  • Dutch Harbor, Alaska, will benefit from a shore-based survey operation simultaneous with a NOAA Fishpac project, as the ship’s smaller launches will acquire more data at the site of the 2015 M/V Fennica grounding.
  • Kodiak Island, Alaska, will have another year of a multi-year surveying campaign in this critical area for increasing fishing and tourism.
  • Prince of Wales Island, Alaska, needs updated survey data to improve charts to Tlevak Strait, expanding to Sukkwan Strait and Howkan Narrows.
  • Behm Canal, Alaska, will get its third (and final) year of survey work to circumnavigate Revillagigedo Island as well as George and Carol Inlet, Alaska.

The surveys will be conducted by NOAA’s four dedicated survey ships ‒ Thomas Jefferson, Ferdinand Hassler, Rainier, and Fairweather ‒ and private companies that survey on a contract basis with NOAA. The NOAA ships are operated and maintained by the Office of Marine and Aviation Operations, with hydrographic survey projects managed by the Office of Coast Survey.

The schedule for Coast Survey’s navigation response teams (NRTs), 3-person boats that work closer in shore to acquire data for nautical chart updates, was announced earlier.

Alaska EastCoast GulfofMexico

New tips for understanding nautical chart symbols   1 comment

SymbolGlobeAs a responsible boater, you examine your nautical chart before sailing, determined to avoid problems during a nice trip along the coast. Charts are packed with symbols and abbreviations, so you might refer to the free copy of U.S. Chart No. 1, which lists all of the symbols used on NOAA nautical charts. It is an excellent quick reference for identifying unfamiliar symbols.

However, sometimes mariners need a deeper understanding…

Coast Survey is now providing additional information about complex or particularly confusing chart symbols to augment what is available in U.S. Chart No. 1. The first two tip sheets are available now. Coast Survey will add more chart symbology tip sheets to the U.S. Chart No. 1 webpage as the need arises.

Understanding NOAA chart symbology

K46.1 - FishHaven

Fish havens: The typical U.S. Chart No. 1 entry, such as this one for fish haven, lists only the name and the symbols. The tip sheet explains what fish havens are, what they look like in context with other charted features, and what restrictions may apply to them.

AnchorageSymbols

Anchorages and harbors of refuge: The anchor symbol has been used for decades to represent an anchorage on U.S. nautical charts, but the specific meaning of the symbol has evolved over the years. The tip sheet explains what the symbol means now – and, perhaps more importantly, what it doesn’t mean.

Questions or suggestions? Email USChart1@noaa.gov.

Posted March 1, 2016 by NOAA Office of Coast Survey in Cartography, Nautical charts

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Coast Survey uses unmanned technology to find submerged danger to navigation   Leave a comment

Coast Survey has been discovering and marking the locations of underwater dangers since our surveyors took the nation’s first official ocean soundings in 1834. We’ve used or developed all the technological advancements – lead lines, drag lines, single beam echo sounders, towed side scan sonars, and post-1990 multibeam echo sounders – and now we can point to a new major advancement for fast deployment and quick recovery. In February, Coast Survey’s Mobile Integrated Survey Team (MIST) used an autonomous underwater vehicle (AUV) to locate a submerged buoy that was interfering with anchorages in the Chesapeake Bay.

“You and the crew of the HASSLER put us right where we needed to be!” said a confirmation email from the U.S. Coast Guard to NOAA Lt. Ryan Wartick, one of Coast Survey’s navigation managers. “Thanks for the great work!”

The problem began in early February, when an outbound tug struck and dragged a very large buoy and its anchor to an unknown location in the vicinity of Chesapeake Bay’s Thimble Shoal Channel. The U.S. Coast Guard closed adjacent anchorages because of the potential danger to navigation posed by the submerged buoy, affecting commercial vessel operations in the area.

On February 9, Lt. Wartick sat down with the U.S. Coast Guard, and other local and federal agencies, to arrange for Coast Survey mobilization in a collaborative effort to find the missing G “11” buoy. The Coast Guard asked Coast Survey to search Anchorage “A” on Friday, February 12, and provided a 45-foot vessel for our use.

AUV preparation

Lt. Ryan Wartick and MIST responder Robert Mowery prepare the AUV for deployment.

Coast Survey’s MIST responders Robert Mowery and James Miller were able to pack up the AUV in Maryland and drive to USCG station on Naval Little Creek amphibious base, where they set up, calibrated, and hit the water on February 12 – and promptly located five potential targets, one of which looked especially promising.

buoy

AUV’s image of buoy

This side scan imagery, acquired by the Hydroid REMUS 100 AUV during the Coast Survey MIST initial search on February 12, shows the sunken buoy – although, at that time, the team was not 100% confident it was the buoy. The intensity of the sonar return and the dimensions of the target strongly supported their suspicion that this was the buoy, but the target was at nadir on the side scan profile, which introduces uncertainty in this type of system. They did, however, deem it the most likely among the five possible targets revealed by the AUV data.

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Fortunately, NOAA Ship Ferdinand Hassler was departing Norfolk on February 17, on their way to their survey project for the approaches to the Chesapeake, and so they made a slight adjustment in their route. The ship’s hydrographers used their multibeam echo sounders to check the targets, based on the MIST AUV data, and they confirmed that the top AUV target was indeed the buoy. The multibeam data also verified that none of the other search targets pose a danger to navigation or risk fouling an anchor for ships in the anchorage.

With the confirmation, the U.S. Coast Guard was able to remove the buoy and re-open the area for maritime traffic.

Buoy is recovered.

Buoy is recovered.

The Coast Survey Development Lab has been evaluating the use of autonomous underwater vehicles as tools for hydrographic surveying in support of NOAA’s nautical charting mission. The use of AUVs, in collaboration with NOAA’s manned survey fleet, could greatly increase survey efficiency. Additionally, as this response confirmed, their flexible deployment options make AUVs a valuable tool for marine incident response.

Happy 209th anniversary to the Office of Coast Survey, the oldest federal scientific organization   3 comments

The Office of Coast Survey dates from 1807, when much of the commerce between the states was by coastal shipping. And all foreign trade, especially critical to our prosperity, had to come by ship. With so many ships coming into our ports and harbors, shipwrecks were common, and it was clear the young maritime nation needed accurate nautical charts.

NINTH CONGRESS OF THE UNITED STATES
At the Second Session,
Begun and held at the city of Washington, in the territory of Columbia,
on Monday the first of December, one thousand eight
hundred and six.

AN ACT to provide for surveying the coasts of the United States.

Be it enacted by the Senate and House of Representatives of the United States of America, in Congress assembled, that the president of the United States shall be, and he is hereby authorized and requested, to cause a survey to be taken of the coasts of the United States, in which shall be designated the islands and shoals, with the roads or places of anchorage, within twenty leagues of any part of the shores of the United States; and also the respective courses and distances between the principal capes, or head lands, together with such other matters as he may deem proper for completing an accurate chart of every part of the coasts within the extent aforesaid.

Sec.2. And be it further enacted, that it shall be lawful for the president of the United States, to cause such examinations and observations to be made, with respect to St. George’s bank, and any other bank or shoal, and the soundings and currents beyond the distance aforesaid to the gulph stream, as in his opinion may be especially subservient to the commercial interests of the United States.

Sec. 3. And be it further enacted that the president of the United States shall be, and he is hereby authorized and requested, for any of the purposes aforesaid, to cause proper and intelligent persons to be employed, and also such of the public vessels in actual services, as he may judge expedient, and to give such instructions for regulating their conduct as to him may appear proper, according to the tenor of this act.

Sec. 4. And be further enacted, that for carrying this act into effect there shall be, and hereby is appropriated, a sum not exceeding fifty thousand dollars, to be paid out of any monies in the treasury not otherwise appropriated.

[signed] Nathan Macon, Speaker of the House of Representative
[signed] Geo. Clinton, Vice President of the United States, and President of the Senate

I certify that this act did originate in the House of Representatives.
[signed] John Beckley, Clerk

February 10, 1807
Approved
[signed] Thomas Jefferson

See the NOAA library for more resources on Coast Survey heritage

An Act

Posted February 10, 2016 by NOAA Office of Coast Survey in History

Coast Survey announces surveys by navigation response teams   2 comments

NRT data will be used to update nautical charts

Coast Survey’s navigation response teams have proven their value, time and again, especially after hurricanes when ports suspend operations, and shipping (or naval movements) cease until Coast Survey’s small boats can locate underwater dangers to navigation. But what do the six navigation response teams (NRTs) do during those long periods between deployments for maritime emergencies? They are busy, mostly year-round, collecting hydrographic data for updating nautical charts.

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Navigation response teams survey for chart updates, emergency response, and homeland security.

Plans for 2016

Responding to requests from mariners around the country, Coast Survey has set some aggressive projects for the NRTs this year. Starting from Northeast and working our way around the coasts…

NEW YORK

Beginning in June and throughout the summer, NRT5 will survey the Hudson River, with a focus on the area from Albany to Kingston. This is a continuation of the project started at the request of the Hudson River Pilots (as reported in NOAA plans multiyear project to update Hudson River charts). We are planning to have Coast Survey research vessel Bay Hydro II join the NRT for most of the summer, to get as much new charting data as possible. In October, NRT5 will move to Eastern Long Island Sound, to finish up some shallow survey work adjacent to recent NOAA Ship Thomas Jefferson’s extensive survey project. The officer-in-charge of NRT5 is NOAA Lt. Andrew Clos. The officer-in-charge of Bay Hydro II will be NOAA Ensign Sarah Chappel.

GEORGIA

In March, NRT2 starts a 16-month survey project in Saint Andrew Sound. The area, which has significant traffic from small boats, tugs, and barges, is reportedly experiencing small boat groundings, and Coast Survey’s navigation manager in the area has received several requests for a modern survey. Coast Survey will use the data to update NOAA chart 11504 and ENC US5GA12M, as well as other charts covering portions of the specific surveyed areas. The existing charted soundings are from partial bottom coverage surveys dating back to the early 1900s. NRT2 is led by Erik Anderson.

EASTERN GULF OF MEXICO – BILOXI AND MOBILE

NOAA Chart - 11376_Public

NRT1 will check out the 18-yr-old reported depths to update chart 11376 inset.

NRT1 will spend March and April acquiring data off the coast of Biloxi, Mississippi, to update the Intracoastal Waterway chart 11372. They will then move to Alabama for some long-overdue “chart clean up” work at the northern end of the Mobile Ship Channel, outside of the area controlled by the Army Corps of Engineers. The Mobile project will investigate charted items, verify reported depths, and update older NOAA bathymetry (vintage 1961) that is depicted in the inset area of NOAA chart 11376. Since the Mobile survey probably will not take the entire rest of the season, depending on interruptions for hurricane response, we are assessing additional survey needs in the area. NRT1 is led by Mark McMann.

WEST GULF OF MEXICO – TEXAS

NRT4 will spend all of 2016 surveying in Galveston Bay, including the bay entrance and newly charted barge channels along the Houston Ship Channel. The team is working with Coast Survey’s navigation manager for Texas to identify additional charted features that require investigation to reduce localized chart clutter and improve chart adequacy.  NRT4 is led by Dan Jacobs.

NORTHERN CALIFORNIA

NRT6 is slated to survey the Suisun Bay anchorage used by MARAD’s National Defense Reserve Fleet, to acquire updated depths. Afterwards, NRT6 will move throughout the bay area to address charting concerns reported by the San Francisco Bar Pilot Association near Pittsburg, Antioch, San Joaquin River, and Redwood City. Coast Survey will use the data to generally update NOAA chart 18652 and ENC US5CA43M, as well as larger scale charts of the specific surveyed areas. NRT6 is led by Laura Pagano.

PACIFIC NORTHWEST

It has been a while since Coast Survey has had an operational NRT presence for Oregon and Washington, but this is the year we are bringing NRT3 back on line. Team lead Ian Colvert is shaking the dust off NRT3 and preparing to restart survey operations. He is working with the Coast Survey navigation manager to develop survey priorities for this summer and fall.

NRTleads

Team leads for Coast Survey’s navigation response teams

Charting the data

Once the navigation response teams process and submit the data acquired during the surveys, the information is further processed in Coast Survey’s Atlantic and Pacific hydrographic branches, and then submitted to our cartographers for application to the charts. The turnaround time for updating the chart depends on the update calendars for each regional cartographic branch. If the NRTs find any dangers to navigation, the information will be relayed to mariners through the Local Notice to Mariners postings and will be applied to NOAA’s electronic navigational charts (NOAA ENC®), online products, and print-on-demand paper charts. Critical updates will be applied to charts more quickly than normal depth adjustments.

Storm surge model provides vital info for #Blizzard2016   Leave a comment

NOAA runs operational forecast modeling systems that provide users with forecast guidance of water levels, currents, and water temperatures for the next 60 hours. The Extratropical Surge and Tide Operational Forecast System (ESTOFS), a storm surge model developed by Coast Survey in 2012, is a vital source of information for forecasting coastal flood events during this weekend’s blizzard.

See the ESTOFS output here, or check nowCOAST for model output integrated with other data.

ESTOFS storm surge forecast guidance valid 2PM EST Jan. 23, overlaid with National Weather Service surface wind forecast (depicted using curved wind barbs)

ESTOFS storm surge forecast guidance valid 2 p.m. EST Jan. 23, overlaid with National Weather Service surface wind forecast (depicted using curved wind barbs)

ESTOFS storm surge forecast guidance valid 1 p.m. EST Jan 23, for New Jersey coast, overlaid on NOAA's nautical chart

ESTOFS storm surge forecast guidance valid 1 p.m. EST Jan 23, for New Jersey coast, overlaid on NOAA’s nautical chart

Posted January 22, 2016 by NOAA Office of Coast Survey in Models

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Get your hands on science at the NOAA Open House   Leave a comment

These kids had a great time getting their hands on science at last year's Open House.

These kids had a great time getting their hands on science at last year’s Open House.

Explore your world and learn how NOAA takes the pulse of the planet every day and protects and manages ocean and coastal resources. Join us on NOAA’s Silver Spring, Maryland, campus for a series of free activities, including engaging talks by NOAA experts, interactive exhibits, special tours, and hands-on activities for ages 5 and up. Meet and talk with cartographers, scientists, weather forecasters, hurricane hunters, and others who work to understand our environment, protect life and property, and conserve and protect natural resources. Learn some of Coast Survey’s heritage and see a historic printing press that we actually used to print charts in the 1800s.

Visit www.noaa.gov/openhouse for details or call 240-533-0710 for more information.

Saturday, February 6
9 a.m. to 4 p.m.
1315 East-West Highway
Silver Spring, MD 20910
Located near Silver Spring Metro Station
Public parking available
Free and open to the public
Note: A government-issued photo ID is required for adults. Check www.noaa.gov/openhouse for a list of acceptable forms of ID.

Posted January 22, 2016 by NOAA Office of Coast Survey in Education, Event

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