By Alberto Nava An important point for the readers of InDepth to understand is that the Thalmann Algorithm implementation, is more of a framework/software for decompression researchers to create alternative decompression models, than it is a specific decompression model per say. By having a configuration file, the Thalmann Algorithm allows researchers to specify a series of parameters to create custom decompression models. For example, a researcher can specify first how many tissues a model will have, next what is the half-time for those tissues, and finally, their M-values. Different values f ..read more

Images taken by Bob Evans, Kian Farin, Melissa Foo, Tianyi Lu & Marty Snyderman. Lead image: Billowing Channel Islands kelp forest by Melissa Foo. ? Predive Clicklist: The Mamas & The Papas – California Dreamin’ By Marty Snyderman “In my experience there is nothing like exploring kelp forest on a day when the weather and water conditions are favorable. Few sights in nature are as awe inspiring to me as watching simmering rays of sunlight dance through a golden forest and watching the whole forest move in perfect timing with the ebb and flow of waves, current, swell, and surge. It is m ..read more

By JP Imbert and Armin Sidali. Images courtesy of the authors unless noted. 3D models created by Armin Sidali. “To Air is Human, To Trimix is Divine,” IANTD bumper sticker, early 1990s Armin never smiles. His dress code is black on black. When he throws the ball, people run. He likes to say that his bad reputation is his best asset. Armin and I are friends. We met when we were both International Association of Nitrox & Technical Divers (IANTD) instructors. At the time, he was getting good at cave diving. He is now managing hyperbaric interventions for a large tunnel project in Hong Kong. I ..read more

By Gareth Lock The Human Diver has always been at the forefront of delivering practical and theoretical education in the diving domain. In January 2016, highly-experiential computer-based simulators (GemaSim) were used to bring the intangible concepts of human factors, non-technical skills, and psychological safety to life for divers in the classroom. In June 2016, a flipped-learning approach was taken where a chunk of theory was delivered via the Kajabi learning management system in face-to-camera delivered modules in the Micro-class before GemaSim classroom sessions.  In February 2021 ..read more

By Tim Blömeke Fig.1: Estimated DCS risk for 30 minutes of bottom time at various depths, Bühlmann deco with GF50/85. Source: D. Doolette RF4 presentation. Also, Doolette D. Advances in Decompression Theory and Practice. In Pollock NW ed. Rebreather Forum 4 Proceedings April 20-22 April, 2023 Malta Dr. David Doolette’s lecture on Advances in Decompression Theory and Practice was among the most anticipated presentations of last year’s Rebreather Forum 4 (RF4). Toward the end of the linked video (starting at about 47:00), Doolette spent a few minutes explaining how deco schedules generated by B ..read more

Netherlands – March 12, 2024 – Healthy Seas, a global leader in marine conservation, proudly presents its 2023 Activity Report, showcasing significant achievements and ambitious plans for the future. Through relentless dedication and collaboration, the foundation continues to lead efforts in preserving our oceans and combating marine litter. Key Highlights: Marine litter recovered: In 2023, Healthy Seas recovered 86.5 tons of waste, bringing the total to 991 tons of fishing nets and other marine litter removed since 2013. This weight is equivalent to the weight of 6.4 blue whales, the large ..read more

By Michael Thomas and Robert Thomas Photography by Craig Holdstock unless noted. Header image: Nick Ashford in Tham Nam Pu. ? Predive Clicklist: Queen – We Will Rock You ? All caves that were visited require permission from the National Park Service or the Monks if a shrine cave. Cave locations have not been published to deter non-exploration visits. It’s not impossible to obtain permission but it takes time. If interested in cave exploration, research on local access is critical.—Michael Thomas  Buddihist shrine outside of the cave There is a twenty-plus-year British tradition of explor ..read more

PRESS RELEASE WEGGIS, SWITZERLAND, FEB. 28, 2024—Martin C. Wright has just published the English adaptation of his diving novel. The original German version was released in 2022 and received favorable reviews by several diving magazines, including Wetnotes® and Divemaster. During a diving weekend on their boat “Ra”, members of the Lucerne Dive Club Neptune accidentally find an old sports car wreck in front of the steep bank of Buergenstock in Lake Lucerne, Switzerland; far from any road. Further dives in the area of discovery lead to an even more explosive finding of historical dimensions: A ..read more

New Jersey, 25th March 2024 – DAN Europe’s Exec. Vice President Laura Marroni has just been inducted into the Women Divers Hall of Fame (WDHOF), in recognition of her efforts to promote diving safety. The WDHOF announced the selection of seven new Members last December 8. The newest inductees have been celebrated during an official ceremony, which was held on March 23, 2024 at Beneath The Sea, Meadowlands Convention Center Seacaucus, New Jersey (USA). “I feel deeply grateful and honored for becoming a member of the Women Divers Hall Of Fame, a prestigious organization composed of amazin ..read more

The concert will be live streamed here on 29MARCH 2024: CAVE MUSIC Plura Valley is a technical and cave diving resort located in northern Norway, just below the Arctic Circle. It has been run by Ina Santala Jordbru and Jani Santala Jordbru the last 7 years. Hosting over 1000 technical and cave dives every year. The resort is all inclusive in the diving sense, with a full technical centre attached to cosy Nordic accommodation, in the picturesque Plura valley, with full catering available and of course a dive themed bar. In 2019 Ina Santala Jordbru and Jani Santala Jordbru got married inside the ..read more