Archive for the ‘Navigation response teams’ Category

Coast Survey research vessel helps Coast Guard re-establish normal ship traffic in the Chesapeake   Leave a comment

Coast Survey’s research vessel, Bay Hydro II, was diverted from its regular hydrographic mission this week to help the U.S. Coast Guard determine if there was a new danger to navigation in the Chesapeake Bay.

On June 13, 2016, U.S. Coast Guard Sector Hampton Roads was notified that the barge WEEKS 179 lost a large portion of its cargo near the Virginia-Maryland line, in a charted traffic scheme area that takes ships around Smith Point in the Chesapeake Bay. The WEEKS 179, carrying construction materials to New Jersey, lost approximately 25 concrete beams and bridge deck pieces, ranging from 10 ft. to 15 ft. long. While the Coast Guard diverted ship traffic around the area, Bay Hydro II deployed to the site, to establish the cargo’s exact position and determine if it posed a hazard to navigation.

By early the next morning, Bay Hydro II was conducting the search. The survey technicians used side scan sonar to locate the sunken cargo, and then followed it up with their multibeam echo sounder to collect bathymetric data over the field of debris. (While the side scan sonar is typically a better search tool for locating objects in large areas, the multibeam is best for obtaining precise position and depths over the items so the hydrographers can determine if dangers to navigation exist.)

Within hours, the Coast Survey vessel had located the cargo and, even better, had determined that the beams were so deep that they did not pose a danger. The Coast Guard was able to use Bay Hydro II’s information to quickly re-establish normal shipping patterns through the area.

Smith_Point_Chartlet

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.

OLYMPUS DIGITAL CAMERA

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.

New small survey boats for hard working navigation response teams   1 comment

To a marine pilot looking forward to a long-awaited nautical chart update, a white NOAA survey ship “mowing the lawn” of the approaches to a port is a gorgeous site. The ship slowly moving back and forth, collecting hydrographic data from the ocean floor, is easily recognizable.

Less well known are Coast Survey’s smaller survey vessels, operated by navigation response teams (NRTs) situated strategically along the U.S. coasts. These vessels are hard worked by two- or three-member teams of physical scientists and technicians who must know everything about the vessel, the specialized survey equipment, and the science of collecting and processing data. On top of all that, they must be expert sailors.

Recognizing the value that these teams and vessels bring to our survey and charting responsibilities — not to mention their essential work in locating underwater debris after hurricanes — NOAA is “recapitalizing” the NRT fleet, building new small boats specifically designed for hydrographic surveying. The first two boats, built by Lake Assault Boats of Superior, Wisconsin, were delivered this week to navigation response teams surveying ports in California and the eastern Gulf of Mexico.

NRT 6 new boat

A new survey boat was recently delivered to a navigation response team surveying in California.

“All of the navigation response team survey boats are nearing or have exceeded their designed service life,” said Russ Proctor, chief of Coast Survey’s Navigation Services Division. “A phased program to replace the navigation response team boats over the next three years will help NOAA maintain the program’s crucial capacity for inshore surveys and rapid response in emergencies.”

Coast Survey’s phased retirement of its current fleet of NRT vessels has prioritized the replacement of boats experiencing the highest escalating maintenance costs.

Navigation response teams protect navigation while they wait for new vessels

In the last 30 days alone, Coast Survey’s navigation response teams have located potential dangers in Georgia and California waters.

The U.S. Coast Guard’s Marine Safety Unit Savannah asked for Coast Survey assistance in locating a fishing vessel that sank on Sunday, September 6. A Coast Survey navigation response team, led by Erik Anderson, located the wreck off Cumberland Island in St. Andrew Sound, pinpointed its position and depth, and delivered images of the vessel.

It was important that the team move quickly. A dive team sent by the Coast Guard on September 7 was unable to locate the wreck — and time was of the essence, since there were indications that the vessel had approximately 700 to 1,000 gallons of diesel onboard. In addition to needing a report on the condition of the vessel (was it intact or in pieces?), the Coast Guard had to find out if the wreck was obstructing a navigable waterway.

The navigation response team hit the water early on September 8. By 10:40 a.m., within two hours of operations, Anderson reported that his team located the wreck with side scan sonar and developed it with their multibeam echo sounder.

Cumberland Island wreck

Using side scan sonar, a navigation response team located this wreck near Cumberland Island.

“The boat appears to be sitting on its port side with the least depth [26 feet] coming from its mast that is located on the top of the wheelhouse,” Anderson reported. “The least depth is based on preliminary tides but will most likely stick as the tide station data looks to be solid for today,” he explained.

On August 26, a navigation response team in Richmond, California, (led by Laura Pagano) was putting the finishing touches on upgrades to Coast Survey’s MIST kit — a mobile, quick-install side scan / single beam sonar kit that can be quickly set up on a vessel of opportunity. While they were taking the MIST through its paces, they found a potential danger to navigation in the Richmond Channel. After the California navigation manager notified appropriate authorities, the U.S. Army Corps of Engineers removed the obstruction before it could do any damage.

11986473_10154179329099068_1438399263359184547_n

Richmond Channel object

This is the object discovered by the navigation response team, after it was pulled from the Richmond Channel. Danger to navigation averted.

Posted September 23, 2015 by NOAA Office of Coast Survey in Navigation response teams

Tagged with

Coast Survey adds navigation assets to NOAA preparations for Hurricane Danny   1 comment

Hurricane Danny is churning in the Atlantic. NOAA hurricane models are churning through data, and two NOAA sensor-packed Hurricane Hunters — a Lockheed WP-3D Orion and a Gulfstream IV — are in Barbados, flying into the storm to collect storm data. Over the next few days, scientists on the ground and in the air will help us determine where Danny will go, and how big the hurricane will get.

In the meantime, NOAA Office of Coast Survey is tracking the NOAA forecasts and making initial preparations for deployment of hydrographic survey equipment to Puerto Rico or the U.S. Virgin Islands, if needed.

Hurricane Hunter and NRT

NOAA’s hurricane response arsenal includes “Hurricane Hunter” aircraft and deployable survey vessels.

MIST rigs vessel with SSS

Coast Survey’s mobile integrated survey team (MIST) rigs a vessel of opportunity with side scan sonar for detecting underwater obstructions.

Coast Survey mobilizes survey teams to search for underwater debris and shoaling after hurricanes, to speed the resumption of ocean-going commerce. When we can’t reach the area with our navigation response team vessels, we send a special mobile integrated survey team (MIST) with the equipment. Then we find a “vessel of opportunity,” install the equipment, and the team goes into the water as soon as it is practicable. (A MIST operation in Maine, deployed for a different set of reasons, demonstrated its effectiveness when it assisted the fishing fleet out of Cobscook Bay.)

At almost the first suggestion that Danny would turn into a hurricane, the U.S. Coast Guard in San Juan was determining Coast Survey’s response capabilities. Does NOAA have the assets available to help re-open ports in Puerto Rico or the U.S. Virgin Islands, they asked Mike Henderson, Coast Survey’s navigation manager for Florida, PR, and USVI. Yes, he answered. The MIST is ready to go to any Caribbean location. In addition, the Navigation Response Branch chief, Lt. Cmdr. Holly Jablonski, reports that navigation response teams are preparing for possible mobilization on the Gulf Coast and East Coast, in case Danny maintains strength and heads to the mainland.

Additionally, Coast Survey’s coastal modeling experts are preparing to test a new storm surge model for predicting coastal flooding from Danny. This model, in experimental use this summer, would predict the flooding caused by the combined effects of hurricane-driven storm surges and tide signals. With a large, flexible grid that extends from South America to Canada, it provides an unprecedented scope for tracking the impact hurricanes have on coastal water levels as these storms cross the Atlantic Ocean and impact the U.S. coastline.

Survey helps ensure safe “parking” for deep-draft vessel in SF   Leave a comment

In preparation for the M/V TERN’s anticipated arrival this week in San Francisco Bay, the Coast Guard and Port of San Francisco asked Coast Survey for a bathymetric survey of the proposed anchorage site. TERN is a semi-submersible vessel with a 60-foot draft, and the proposed anchorage site has charted depths of 62 feet and 63 feet ‒ leaving no room for error, to say the least. The question was whether there are any spots shoaler than 62 feet.

This isn’t your everyday anchorage.

“This vessel floods ballast tanks and partially sinks, putting the main deck below water. Items can then be floated onto the ship, and then water is pumped out of the ballast tanks to bring the main deck back above water level,” explains Lt. Michael Davidson, chief of Coast Survey’s Navigation Response Branch. “TERN won’t actually be anchoring in the anchorage, but rather will be held in place with tugs while cranes are transferred. When she submerges during the operation, her submerged depth is 60 feet.”

Coast Survey assigned Navigation Response Team 6 to investigate the depths with its multibeam echo sounder, to ensure that the TERN will have the under keel clearance she needs. Last week, as requested by the Coast Guard, NRT 6 conducted an investigative survey around Whiskey 2, Anchorage 9. (Whiskey 2, depicted on the survey chart as W2, is a “bucket” that resides within Anchorage 9. A bucket is where they usually park a ship.) Of the many small, pocked features, the team found six that exhibit a height above bottom. Most notable of these features is a 60’ shoalest sounding near a 63’ charted depth – near the location where TERN was supposed to submerge.

After the Coast Guard received the team’s report of obstructions, they asked Coast Survey to investigate an additional area. They were looking for a spot that was at least 62′ deep, free of any features.

“In our area of survey near W1, there were no features that exhibited a height above bottom or showed any significant scour,” reports Ian Colvert, acting team lead of Coast Survey’s Navigation Response Team 6. “The area near W1 is a much more promising place to park the TERN, versus W2 which had a few features and depths not as deep.”

Coast Survey has a proud 200-year history of protecting ships from accidents. NRT6 gives us a very real example of how that mission continues today.

reduced 01_W1_ANCHORAGE_9_response

A “soft” resilience strategy is part of successful hurricane response   1 comment

We hear about the infrastructure investments that often follow major disasters like hurricanes ‒ the “hard” port resilience strategies necessary in the wake of catastrophic human, environmental, and economic loss. But the sturdiest, most flood-proof building is just one part of a larger system of assets in coastal resilience. We don’t hear much about the “soft” resilience strategies ‒ those that build and maintain ties among the people responsible for responding to a hurricane, for instance ‒ that are important to a successful response. Those strategies are part of the social capital between communities and government, and among government agencies.

Coast Survey's Capt. Jon Swallow and Rear Adm. Gerd Glang review charting and survey requirements with Capt. Andrew Melick of of the Biscayne Bay Pilots Association.

Coast Survey’s Capt. Jon Swallow and Rear Adm. Gerd Glang meet with Capt. Andrew Melick of of the Biscayne Bay Pilots Association.

 

Coast Survey navigation managers invest in important soft resilience strategies during their ongoing preparations for hurricane season, building relationships with the private and public partners with whom they will work in a crisis. To quote a spokesperson for the New York Office of Emergency Management, “You don’t want to meet someone for the first time when you’re standing around in the rubble.” Or surveying a dangerous coastal debris field, as the case may be.

Navigation manager Tim Osborn presents info to U.S. Coast Guard New Orleans Sector and members of the Lower Mississippi River Waterway Safety Advisory Committee.  Tim works with these groups during hurricane and incident response events.

Navigation manager Tim Osborn presents info to U.S. Coast Guard New Orleans Sector and members of the Lower Mississippi River Waterway Safety Advisory Committee. Tim works with these groups during hurricane and incident response events.

 

Coast Survey navigation managers and navigation response teams have the opportunity to build those relationships when they meet with emergency responders from NOAA and other agencies throughout the year for planning, drills, and tabletop exercises. Navigation managers also sit on U.S. Coast Guard Marine Transportation System Recovery Units, which comprise the experts in maritime mobility, incident response, and port operations who work with stakeholders to reopen ports following a natural or manmade disruption. The units provide a single contact and a clear, efficient pipeline for relaying information to and from Coast Guard and NOAA headquarters to ensure that resources are available at the right place at the right time.

NY/NJ MTSRU 2012

Lt. Brent Pounds (back to the camera) was NOAA’s representative on the New York / New Jersey Marine Transportation System Recovery Unit responding to Sandy in 2012.

 

The “right time” is well before a storm hits its coastal target. After a damaging storm, ports may restrict ship travel or shut down completely ‒ so deploying survey ships, navigation response teams, and navigation managers before the storm arrives is critical. For example, four days out, as it becomes more obvious where a storm will hit, the Marine Transportation System Recovery Units assess the likely severity of damage in the forecasted areas. Two to three days out, Coast Survey teams are on the move to pre-position before the storm’s arrival. Because they have been pre-positioned, navigation managers can work directly with the Coast Guard, pilots, and port officials to create a survey plan for detecting underwater debris in order to rapidly “clear” priority areas for the resumption of shipping.

Tensions are high after a hurricane, and resources may be scarce. When people from several agencies are trying their best to get operations up and running, under difficult circumstances, pre-established individual relationships can help to ease the strain and strengthen team bonds. Of course, nothing beats team building like a successful response to an actual storm. (See this excellent report on port recovery in the aftermath to Sandy in 2012.) The lessons learned in one response can be transferable to future responses. As an added benefit, the respect and trust among cooperating agencies, at all levels of government, gives life to the motto of the United States. E pluribus unum: out of many, one.

Coast Survey finds historic City of Chester wreck, again   Leave a comment

NOAA announced that one of Coast Survey’s navigation response teams found the underwater wreck of the passenger steamer City of Chester, which sank in 1888 in a collision in dense fog near where the Golden Gate Bridge stands today. City of Chester had just left San Francisco and was headed up the California coast to Eureka with 90 passengers on August 22, 1888, when it was struck by the steamer Oceanic. Impaled on Oceanic, which was arriving from Asia, City of Chester remained afloat for six minutes before sinking. Sixteen people died in the accident.

Navigation Response Team 6 (NRT6) found the wreck in May 2013 while they were conducting regular survey duties for safe navigation, assessing a potential pollution threat from the S.S. Fernstream, a wreck from 1952. Sonar images confirmed that the target was the 202-foot steamship City of Chester, sitting upright, shrouded in mud, 216 feet deep at the edge of a small undersea shoal, rising 18 feet from the seabed.

The City of Chester is shown in NRT6's multibeam image.

The City of Chester is shown in NRT6’s multibeam image.

This NOAA team is not the first to find the shipwreck. Last year, John Cloud (NOAA Library) discovered an unpublished manuscript chart, showing that in 1888 a U.S. Coast and Geodetic Survey team used a drag survey from the tugboat Redmond to successfully locate the City of Chester after it sank. Tony Reyer (Office of National Marine Sanctuaries) geo-rectified that manuscript chart onto the modern seascape, and was able to provide NRT6 with the lat/lon coordinates.

The U.S. Coast & Geodetic Survey created this chart of the wreck in 1888.

The U.S. Coast & Geodetic Survey created this chart of the wreck in 1888.

“Connecting to the history of the Chester is sad in one way, but we were also connecting to scientific history on a different level,” said NRT6 team leader Laura Pagano. “Using our high-tech multibeam echo sounder to re-discover a wreck originally found over a century ago – by Coast Surveyors dragging a wire across the seafloor – is immensely fulfilling.”

“We are equally proud to have provided information on an important link to the rich heritage of the San Francisco Chinese-American community,” Pagano explained.

The rediscovery of the wreck restores an important historical link to San Francisco’s early Chinese-American community. Reports at the time initially criticized Oceanic’s Chinese crew in the racially charged atmosphere of the times. Criticisms turned to praise, however, when the bravery of the crew in rescuing many of City of Chester’s passengers was revealed. The wreck was then largely forgotten.

“Discoveries like this remind us that the waters off our shores are museums that speak to powerful events, in this case not only that tragic wreck, but to a time when racism and anger were set aside by the heroism of a crew who acted in the best traditions of the sea,” said James Delgado, director of maritime heritage for NOAA’s Office of National Marine Sanctuaries, whose past work has included documenting historic wrecks in California.

In addition to Pagano, NRT6 is crewed by Edmund Wernicke and Ian Colvert. Vitad Pradith also assisted on the project.

%d bloggers like this: