The study of extreme wave events in the ocean has become a popular area of research in recent years. Aside from seafarers, extreme waves impact coastal communities and are of great interest to marine renewable energy companies. This is particularly prevalent in the face of coastal erosion, rising sea levels and uncertainty in how the wave climate will change in a warming world. However, much of the current research is based on modeling and experiments. Extreme wave events – including storm waves, rogue waves, storm surges and tsunamis – are rare, and as such are difficult to observe and measure. Usually the wave categories are divided into two streams: long waves and short waves. Generally, the ratio of depth to wavelength is used as a parameter to differentiate between long and short waves. Tsunamis and storm surges are typically very long waves, so they are considered shallow water waves. Storm waves and rogue waves are much shorter in wavelength relative to ocean depth.
Basin survey is being acquired by the MV Oceanic Endeavour deploying Sercel’s next-generation Sentinel RD solid streamer and started in January 2014. The Sentinel RD has a reduced diameter and a 15% weight reduction, compared to the original Sentinel, providing reduced cable drag and increased storage capacity
Teledyne RD Instruments announced two updates to its Sentinel V ADCP. The enhancements include a complete update to the firmware and the user software interface program, ReadyV, and an update to the post-processing Velocity software package. These two releases provide for added flexibility in the setup of
The Company: Beier’s integrated engineering department and installation team specializes in retrofit projects, providing custom-designed systems for clients, reducing vessel downtime, and achieving the highest level of performance on the open water. Beier Radio, LLC and its subsidiaries (Beier Integrated
The rapid loss of Arctic sea ice is a sentinel. Most of us will never venture into the Arctic, but it can and does provide us with a forewarning of impacts coming to our parts of the Earth – and some of the most significant impacts will directly affect the maritime industry. In earlier times, coal
Beier Radio, Inc. marks 70-years of providing engineering, sales and service for marine electronics around the globe. During its 70 years in business, Beier Radio has grown from being one of the first marine electronics distributors in the southern United States to a leader in integrated vessel control
Aluminum Boats, Inc. of Crown Point, La., recently delivered the Baltimore Sentinel, a 63- foot-long by 20-foot beam, 150-passenger excursion boat, to Maryland Tours, Inc. of Baltimore, Md. The new vessel made the 2,000-mile delivery trip from its south Louisiana shipyard " ... absolutely trouble-free
Tideland Signal Corporation of Houston, Texas, has introduced the new SAB-12 Sentinel Articulated Buoy. According to the manufacturer, the buoy has outstanding station- keeping capabilities and may be deployed where water depth makes placement of a fixed structure impractical. The SAB-12 consists
When the world's largest vehicular floating bridge was completed recently at Seattle, a newly built, Cummins-powered vessel—Driftwood II—was on hand to begin serving as the concrete structure's tender. Performing bridge maintenance, backup firefighting and environmental cleanup chores is a 46-foot
U.S. firms leverage Netherlands-based Damen Shipyard’s vessel designs and technical support. For nearly 40 years, Damen Shipyards Group in the Netherlands has licensed its vessel designs and technical support to yards owned by other companies. The business practice showcases not only the depth, variety
are scheduled to be delivered in 2017. In June 2014, Bollinger Shipyards delivered the USCGC Raymond Evans, the 10th FRC to the USCG in Key West, Fla. The Sentinel-class is replacing the Coast Guard’s Island-class 110-ft. patrol boat. The FRC uses an in-service parent craft design based on the Damen Stan Patrol
in the 1980’s,” Socha said. Defense budget cuts have not yet affected Bollinger’s FRC backlog. Socha said 13 FRCs remain, plus any additional awards. The Sentinel-class FRC is a new patrol boat capable of deploying independently to conduct missions that include port, waterways and coastal security; fishery
IN THE SHIPYARD Brix Marine BRIX Marine Delivers Artemis: Rede? ning Bayonne Drydock Wildlife Adventuring on the Kona Coast BDD Completes BRIX Marine delivered Artemis from its custom PaxCat portfolio, designed for Hawaiian Adventures, a provider of immersive wildlife experiences on the USCG Cut er
he story of Covelya Group is a familiar one in sub- to a connection that, years later, would put the Partridge fam- sea circles, the story of a man with a dream and ily on the acquisition path. the gumption to start his own company operating Fast track to 2006, when Sonardyne’s cooperation with Wave- T
2025 and 2026; and the Polar Security Cutter program underway at Bollinger Mississippi Shipbuilding (previously VT Halter Marine) in Pascagoula, Miss.—the series’ ? rst vessel Polar Sentinel is scheduled to be launched in 2025. In June last year, Mobile, Ala. shipbuilder Austal USA was awarded a
UNITED STATES COAST GUARD Deputy Sector Commander for Sector Honolulu Cmdr. Aja Kirksey said the option of sending an FRC with a WLB to- gether as a surface action unit (SAG) has proven to be success- Sentinel Class Fast ful. But these long deployments have risk, and we shouldn’t assume that because
Inside the “Largest Coast Guard Shipbuilding Effort Since WWII” At his fourth, and last “State of the Coast Guard” speech held earlier this year at USCG Air Station Clearwater, Admiral Karl Schultz gave a rundown of the physical maritime assets being built to power the United States Coast Guard for the
Feature Shipbuilding Gladding-Hearn Shipbuilding Gladding Hearn is currently building four pilot boats, including a 70-foot pilot boat for the Galveston Pilots. stage of the build program and is believed to be competing Austal USA has four Independence-class LCS currently with yards such as Bollinger
The 2017 paper “Undersea Cables In- dispensable, insecure,” by Rishi Sunak, a member of Parliament, and published by the British think Tank Policy Exchange, states that the world is totally dependent on the half-million-mile undersea net- work. But as dependency rises, so do the Photo courtesy US
The 2017 paper “Undersea Cables In- dispensable, insecure,” by Rishi Sunak, a member of Parliament, and published by the British think Tank Policy Exchange, states that the world is totally dependent on the half-million-mile undersea net- work. But as dependency rises, so do the Photo courtesy US
Vessels Hybrid-electric CTV and design of the vessel would occur during 2022-2023, set- ting the stage for building and launching the hybrid CTV in the mid-2020s, timing that would ? t well with the start of operation of wind turbines by May? ower Wind. Incat Crowther is the designer of the vessel
USCG CUTTERS with offers to be submitted by June 11, 2021. The keel for the lead ship, USCGC Argus (WMSM 915), was “authenticated” in April of 2020.The second OPC, USCGC Chase (WMSM 916),is currently in production. The Coast Guard recently mod- i? ed the contract to begin construction of the third OPC
Captain Bernie Egan, Supervisor of Marine Operations, Prince Rupert Port Authority Prince Rupert Port Authority maritime trade than in the U.S. On international sea trade routes, particularly in Europe, shippers use what van Ryn- bach described as modern versions of older style cargo ves- sels: ships
, a ‘compact’ marine seis- graded underwater acoustic positioning mic solution specially designed for ac- software. Rebuilt from scratch, it comes quiring the seismic data for high-reso- with a more powerful and ef? cient data lution 3D imaging of targeted offshore engine with improved positioning accu- areas
VESSELS USCG National Security Cutter Stone Passes Acceptance Trials class NSCs with two more under construction and one ad- ditional under contract. The technologically advanced Legend-class NSC enables the Coast Guard to meet the demands required for mari- time and homeland security, law enforcement
will signi? cantly reduce way it leverages the near infra-red band directs it to a permeable conveyer belt. the quantity and impact of future mi- of the Sentinel-2 Multi-Spectral Instru- At this point, the waste is transferred croplastics. Dr. Lauren Biermann of the ment (MSI) to ‘see’ things that don’t
one hundred Comms, Controls & Electronics Rose Point Navigation Systems RHOTHETA Ventura Rigol RHOTHETA International, Inc. Often used for navigation before the adoption of GPS, radio direction ? nders continue to function today as safety equipment for all types of vessels. RHOTHETA radio di- date
SHIp MAINTENANCE Biofouling & layed up ships periods of time are therefore likely to to rely on in water husbandry will require become fouled. As the organisms grow, the services of a diving company with Acknowledgements: so will the forces required to remove the method to match the fouling and the
SHIPBUILDING REPORT All American Marine Once up and running again, All American Marine will take over the construction of a ferry power by hydrogen fuel cells. Blount Boats The 56-foot icebreaking tugboat being built by Blount Boats for N.Y. Power Authority (NYPA). Photo: Blount Boats Photo: All
lent due to their proven performance. puter models and data from the gliders, al communities. Taking weather forecasts into account, researchers from Rutgers University researchers directed the gliders towards determined that strong winds on the Measuring the Changing Ocean a storm’s anticipated
MTR 100 Sonardyne Hampshire, UK John Ramsden, Managing Director Staff: 290 www.sonardyne.com Sonardyne From the day it was founded close to 50 years ago, Sonar- instrument of choice for subsea resident vehicles and is sup- dyne’s focus has been customer-driven innovation in our porting the most demanding
Case Study Great Barrier Reef Great Barrier Reef’s 3D Habitat he mapping project, ‘3D live habitats for the full extent of the Great Barrier Reef,’ will provide maps of the predicted coral types and underwater landscape for the more than 3,000 reefs within Tthe 350,000 sq. km of the GBR. EOMAP’s technolog
or navigation systems, with the capability to run WFS Extre- and are incorporated with the hydro- Image Courtesy Sercel meEdge computing. phones in the Sentinel streamer. June 2019 8 MTR MTR #5 (1-17).indd 8 5/28/2019 9:11:17 A
Marine was awarded a research Shipping Firms Recognized NOAA presented awards to 13 global port Corp.; Polar Tankers Inc.; Celeb- and development grant by the National shipping ? rms for their commitment rity Cruises Inc.; Hamburg Sud; Exxon- Science Foundation (NSF) to enhance in helping prevent ship collisions
a unique grillage design as part of a TCarta said it delivered satellite derived bathymetry (SDB) collaborative scope for an offshore wind farm project in the to one of the world’s largest oil and gas producers, Total SA, U.K. and one of the biggest in the world. who will use the water depth data for preparing
selected to pro? le the full water column. Thus a 75 kHz Long nection, these ADCP data are available in near real-time and Ranger sits at the deep site while a 300 kHz Sentinel is at the for a long duration—two years so far. This has led to innova- inshore location. tive use of the ADCP data. Housed in a