Dive Site News

Photo: WASSP

WASSP Updates S Series Multibeam Sonar

WASSP Multibeam has announced the release of two new firmware updates, CDX 4.0 and DRX 6.0, for its S Series multibeam sonar systems designed for the survey market, including dredging, dive site profiling, wreck hunting and many other survey activities.These updates will add a number of new functions to WASSP systems currently in use and, in most cases, can be installed by the user free-of-charge.A new Compensation Control adjusts for sea temperature and salinity, ensuring that the seafloor remains flat irrespective of different absorption losses in the water column.Whether using CDX or a third-party

(U.S. Navy photo by LeighAhn Ferrari)

Oil Removed from WWII Era Shipwreck

their four-point moor over ex-Prinz Eugen.Each oil-filled, accessible tank was hot tapped, pumped free of recoverable oil, and sealed with a permanent, tamper-proof dome assembly to prevent any subsequent leakage of residual oil clingage left in the tank. These actions ensured that the wreck, a popular dive site, is safe for continued recreational diving and the Atoll is safe from the risk of significant oil spill from ex-Prinz Eugen."This project was an incredible opportunity to showcase the U.S. Navy Salvage community's capabilities. SUPSALV had prior experience with sunken vessel oil removal

© Sergey Kamshylin / Adobe Stock

The Hunt for the Notorious U-Boat UB-29

territorial waters. He’s another of Termote’s old friends, not to mention a maritime history buff. So when Termote went down for the first time last June, maritime police were standing by and coastal radar had been alerted; a 1,000-foot exclusion zone kept commercial shipping from the dive site. “In the first half-minute, I knew it was a German UB II-class submarine,” remembers Termote. “After 30 U-boats, you just feel it. I can’t describe the elation I felt when I came up.”Termote made six dives that summer. The submarine was indeed a UB Class II U-boat

The ONR TechSolutions-sponsored scuba binary dive application (SBDA 100) replaces traditional paper logs and automates the logging and submission of dive profiles directly from a dive computer worn by Navy Divers to the Naval Safety Center DJRS database. (U.S. Navy photo by Bobby Cummings)

Navy Divers to Have Automated Logging from Worn Dive Computers

,” said Jason Payne, TechSolutions acting program manager.The SBDA 100 is a software application on a ruggedized tablet used to log, compute and accurately compile dive-profile data.The data, collected from a wrist watch that divers wear during operations called a Navy Diver Computer, includes dive site conditions, equipment used by the divers, dive events, such as, when a diver left the surface or left the bottom of the ocean floor, and if the dive required decompression stops. SBDA 100 syncs this information and automatically uploads it to DJRS.“For years, I witnessed how many hours it

(Photo: OceanGate)

iXblue Equips Manned Submersible for Titanic Mission

;With iXblue our pilot can safely navigate around shipwrecks because we know almost exactly where we are. Plus, the location is sent to the surface, so the operations crew can track our location in real time. The accuracy of the location data also allows the dive team to better track the areas of the dive site that have already been scanned or filmed, eliminating redundant scans and reducing the risk of missing key images of the wreck.”iXblue’s unique strap-down Fiber-Optic Gyroscope (FOG) technology, Phins 6000 subsea Inertial Navigation System (INS) provides accurate position, heading,

Cirroteuthidae morphospecies swimming above the seafloor (Credit: Woods Hole Oceanographic Institution)

The Price of Subsea Mining

and AB02, in the Clarion-Clipperton Zone. (a) The location of the UK Seabed Resources Ltd exploration contract area (UK-1) in the eastern Pacific Ocean. (b) The locations of the 30x30-km survey areas, UK-1 Stratum A and UK-1 Stratum B, in relation to the UK-1 exploration contract area and the AB01 ROV dive site, EPIRB, which was approximately 250 km east of the UK-1 contract area. (c) The locations of ROV dives within UK-1 Stratum A, indicated by purple tracklines labelled with the dive number (e.g. RV01). Stations where imagery was collected with a baited camera (CA01) and samples collected with a baited

NOAA scientist recovers Fishers TOV towed video system after completing survey, Inset: Sterling Fire Department diver exits reservoir with their Fisher DV-1 drop video. (Photo: JW Fishers)

Underwater Video Aids Scientists and Search Teams

. There are numerous advantages of having a system that sends live video to the surface. Many law enforcement agencies and public safety dive teams put down a camera instead of a diver in the initial stages of an underwater search to save time and increase safety. They can make a permanent record of a dive site, search operation, underwater crime scene, or evidence. These video systems also help scientists study the health of the aquatic environment and its marine inhabitants.   One agency utilizing the underwater video system is the National Oceanic and Atmospheric Administration (NOAA) Office

Image: Paul Unterweiser

Tech File: Imagenex 881AL-GS Gyro-stabilized Scanning Sonar

from damage. The sonar may be mounted transducer “up” or “down” providing more options when choosing a mounting location. I divided my testing of the 881AL-GS into three parts: initial setup and bench testing, static testing in the water and fully operational testing at a dive site.   Bench test Once I had all the components necessary to integrate the sonar, setting it up was straightforward.    Two leads of the sonar’s pigtail supply power and the other two are for RS-485 serial communications. I installed the supplied software and drivers (initially

Photo: OceanGate

INS to Help Manned Sub Explore Andrea Doria Wreck

, the sonar scans will be digitally assembled into a complete virtual 3D model to illustrate the full scope of the wreck and document its current condition.   “More accurate position data gives us higher quality sonar models. And with PHINS, the dive team can better track the areas of the dive site that have already been scanned or filmed, and then use this data to eliminate redundant scans and reduce the risk of missing key images of the wreck,” Rush said

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