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(Credit: Shearwater Geoservices)

ExxonMobil Enlists Shearwater for 3D Seismic Survey in South America

ExxonMobil Trinidad and Tobago Deepwater.The deepwater survey offshore Trinidad and Tobago will cover approximately 6,000 square kilometers of full-fold area.The acquisition is scheduled to commence in the first quarter of 2026 and is expected to take around five months.Shearwater’s streamer vessel Amazon Warrior will undertake the acquisition, utilising its multi-component Isometrix streamer technology.The project is expected to deliver high-quality seismic data to support future planned exploration activities in the area

Capt. Charlie MacVean with some of his USS SEAWOLF (SSN575) divers. (Photograph courtesy of John Freeman.)

In Memoriam: Captain Charles Robert MacVean, USN, (Ret.), PhD

mission planning software for the U.S. Navy, U.S. Marine Corps, and overseas allies.Captain Charlie MacVean and wife, Ellen, at the NSLPACSW luncheon, February 2020.MacVean authored an engaging autobiography, “Down Deep,” with the help of friends John Freeman and Gresham Bayne, available on Amazon.  One SEAWOLF crewman wrote, “Great book. Felt like I was alongside the CO again. Nice feeling. I was a nuke, so there were long hours, and very tough times. Not always fun. But as was stated throughout the book, you always busted your ass. Not because you feared Mac, but because you never

Figure 1. Ocean Networks Canada’s hydrophone and Dalhousie University’s Deep Acoustic Lander are used to monitor hydrothermal vents. Brendan Smith and his Ph.D. advisor, Prof. David Barclay, used hydrophones operated by Ocean Networks Canada in the Pacific Ocean and the European Multidisciplinary Seafloor and water column Observatory in the Atlantic Ocean to monitor two vents on the seafloor. 
Photo: Ocean Networks Canada

Battery Power Management and Control

transistor. The MOSFET has three terminals: gate, drain, and source. MOSFETs are valued for their ability to control large currents using small gate voltages, their efficiency, and small package size. Some MOSFETs can be switched fully on by 5v (Vgs) logic levels, such as the IRL540 (Cost: $0.77). Amazon sells a sampler kit of logic level MOSFETs for $19. (Search term in Amazon “EEEEE 70 Pcs Logic Level MOSFET”.)A small electrical signal can turn on LED lights for imaging or a motor in a pump. Great devices to know about. Google “How to Choose a MOSFET” for many good links

Aerial view of the Rock Islands and coral seascape at the Republic of Palau. [Photo credit: The Nature Conservancy]

Bezos Funds AI Nature Projects

power our planet to make a true impact.”The winning projects span five continents, from an AI-driven coral reef monitoring network in the Pacific to a weather forecasting model designed for African farmers.The awardees were chosen following a global innovation sprint supported by partners including Amazon Web Services, Google.org, Microsoft Research, Ai2, and Esri, who provided mentorship, tools, and computing resources to help move ideas from concept to impact.Plymouth Marine Laboratory (PML) was one of the 15 selected. The university’s project involves advancing its Deep Vision project to

© The Ocean Agency / Adobe Stock

Climate Tipping Points are Being Crossed, Scientists Warn

;tipping point” in climate-driven ecosystem collapse.The warning in the Global Tipping Points report by 160 researchers worldwide, which synthesizes groundbreaking science to estimate points of no return, comes just weeks ahead of this year's COP30 climate summit being held at the edge of the Amazon rainforest in Brazil.That same rainforest system is now at risk of collapsing once the average global temperature warms beyond just 1.5 degrees Celsius based on deforestation rates, the report said, revising down the estimated threshold for the Amazon.Also of concern if temperatures keep rising is

© Kathy A. Smith

Fascinated by Shipwrecks Podcast: Episode 13

edited many books and written countless magazine articles. His love of sailing attracted him to books of a nautical nature, resulting in the acclaimed Sailing by Starlight The Remarkable Voyage of Globe Star. His newest book, Ship of Lost Souls: The Tragic Wreck of the Steamship Valencia, can be found on Amazon. 

Capt. Charlie MacVean with some of his USS SEAWOLF (SSN575) divers.
(Photograph courtesy of John Freeman).

In Memoriam: Captain Charles Robert MacVean, USN, (Ret.), PhD

Development at Horizons Technology, a San Diego company developing and providing mission planning software for the U.S. Navy, U.S. Marine Corps, and overseas allies.MacVean authored an engaging autobiography, “Down Deep,” with the help of friends John Freeman and Gresham Bayne, available on Amazon. One SEAWOLF crewman wrote, “Great book. Felt like I was alongside the CO again. Nice feeling. I was a nuke, so there were long hours, and very tough times. Not always fun. But as was stated throughout the book, you always busted your ass. Not because you feared Mac, but because you never

Source: Cascadia Seaweed

Good Ocean, Good Business

produce and release nitrogen into waterways.In July, North Sea Farmers made the first-ever harvest at North Sea Farm 1, a commercial-scale seaweed farm located off the coast of the Netherlands in the North Sea. The farm, which is uniquely located in an offshore wind farm, was created with support from Amazon’s Right Now Climate Fund, a $100 million initiative dedicated to climate and biodiversity projects that benefit both people and the planet.By locating the farm between offshore wind turbines, North Sea Farmers found a way of securing physical space for the farm that is protected from maritime

© Adobe Stock/katestudio

US Lawmakers Tech CEOs to Address Security Concerns About Subsea Cables

Three Republican House lawmakers on Monday asked the CEOs of Alphabet, Facebook parent Meta, Amazon.com and Microsoft if they have adopted adequate safeguards to address growing national security concerns on submarine communications cables.Washington has been raising alarm about the network of more than 400 subsea cables that handle 99% of international internet traffic and about threats from China and Russia.The letter raised concerns that entities affiliated with China "such as SBSS, Huawei Marine, China Telecom, and China Unicom, have continued to provide maintenance or servicing to

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