In Memoriam: Captain Don Walsh
Technology released a statement saying: “Don Walsh will forever be remembered as a pioneer in exploration and especially for his famous first, when he and Jacques Piccard piloted the bathyscaphe Trieste to the deepest point in the world’s ocean with their dive to the bottom of the Mariana Trench in 1960. He will also be remembered for his lifetime of contribution to ocean technology.“But for those that had the honour of knowing him, he will most be recalled for his humility, kindness and generosity. A true renaissance man and someone whose attributes we should all strive to emulate
MTR100: Underwater Cameras, Lights and Ocean Landers
views using the mobility of the vehicle itself. Landers can be made to pirouette on the seafloor, rotating up to 720°, to capture an entire panorama of its landing site. This was dramatically shown during James Cameron’s DEEPSEA CHALLENGE Expedition with DOV MIKE in the Sirena Deep of the Mariana Trench in 2012.ExperimentationLandereans can inexpensively explore camera systems by building their own. The path to discovery and understanding can begin with a simple system based on a board camera or POV (Point-of-view)/Action camera, such as a GoPro. Keep It Simple, Sailor (KISS). Start with the
U.S. Revives Cold War Submarine Spy Program to Counter China
. China is also building a fleet of underwater and surface sea drones to scour for enemy submarines, the two people said.The Chinese push extends far into the Pacific. The state-run China Academy of Sciences said in 2018 it was operating two underwater sensors: one in Challenger Deep in the Mariana Trench, the deepest known point on earth; the other near Yap, an island in the Federated States of Micronesia. Though China says these sensors are used for scientific purposes, they could detect submarine movements near the U.S. naval base on Guam, a Pacific island territory, the Navy sources said
LUMA X-UV Passes 1200 Bar Pressure Test, Hydromea says
Hydromea reports it has as achieved validation for its underwater optical modems, LUMA X-UV, in Germany's Nautilus lab. With a certification at 1200 bar of pressure, equivalent to depth of 12,000 meters in the ocean, Hydromea's LUMA X-UV modems have surpassed previous limits.The Mariana Trench, the deepest point on Earth measuring 10,994 meters, has been an immensely challenging destination to explore due to extreme pressure reaching 1100 bar. Very few expeditions have dared to venture to these depths, limited by the scarcity of suitable equipment. Recognizing this need, one of Hydromea'
They Say We Know More About the Moon Than About the Deep Sea. They’re Wrong
yet more is known about the shape of the surface of the moon than is known about that of the bottom of the ocean”. This refers specifically to the scant amount of data available on the topography of the sea floor and predates both the first crewed descent to the deepest part of the ocean, the Mariana Trench (1960), and the first Moon landing (1969).This quote also predates the practice of using ship-mounted echo-sounders to map the sea floor from acoustic data, known as swathe bathymetry.Almost a quarter of the world’s sea floor (23.4%, to be precise) has been mapped to a high resolution.
Lander Lab #4: Underwater Releases
action such as deploying a drop arm, closing a water sampler or animal trap, or releasing a surface buoy or hydrophone string.A clever at-sea adaptation of timer releases was reported by Scripps researchers Mantyla and Reid in 1977. Making measurements of salinity, oxygen and silicates in the Mariana Trench, they found the tapered wire rope on the hydrographic winch was of insufficient length to reach below 10km. Engineer Dave Muus proposed modifying a John Issacs “Monster Camera” free vehicle, a chain of components more like a short mooring than an ocean lander, to carry a string
Winners of Captain Don Walsh Award for Ocean Exploration Announced
, and propagation of marine technology toward the advancement of ocean exploration. Walsh and co-pilot Jacques Piccard were aboard the bathyscaph Trieste when it made its daunting record descent on January 23,1960 into the deepest point of the world’s oceans – the Challenger Deep in the Mariana Trench.In 2015 Vescovo proposed a goal of finding and diving into the five deepest spots in the world’s ocean with dives taking place in the Atlantic, Southern, Indian, Pacific and Arctic oceans. This feat required not only a unique diving submersible but also fielding a specially equipped survey
Trieste: 60th Anniversary of Deepest Dive
Plunging into the deep, dark abyss of the Pacific Ocean’s Mariana Trench, U.S. Navy Lt. Don Walsh and Swiss engineer Jacques Piccard heard a loud cracking sound in their vessel—the bathyscaphe Trieste, which the Office of Naval Research (ONR) purchased for scientific observations.Already 30,000 feet below sea level, Walsh and Piccard faced the ultimate decision—risk their lives to become the first people to travel to the deepest part of the ocean, the Challenger Deep, or return to safety.The crack had scarred one of Trieste’s outer plexiglass panels. Walsh and Piccard (whose
Oi: Tracking 50 Years of Ocean Innovation
in 2003 (when a New Orleans funeral march band was commissioned to walk through the show halls …), before being dropped. Despite the lack of success at these shows, for Carter, the experience meant meeting and working closely with Don Walsh, one of the few to have visited the depths of the Mariana Trench, alongside Jacques Piccard, and then U.S. Navy Oceanographer, and later Chief Scientist at the U.S. National Oceanic and Atmospheric Administration, Rick Spinrad.Ocean science has also continued to develop and expand. There have been improvements in ocean sensing – including how much data
February 2024
