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    • Home
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      Underwater Imaging


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      Doppler Velocity Logs Compact NavigatorPositioning System AUV Communication  & Navigation  Kits

      Hydrographics


      Acoustic Doppler Current Profilers Single-Beam Echosounder

      Diving Support System


      Underwater Intercom Dive & Underwater EquipmentComms & Positioning Equipment

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Latest
UAM-08160H Underwater Acoustic Modem Range Test Report
Field Performance Evaluation: 6–10.4 km Telemetry Range, Channel Fading Analysis, and Line-of-Sight Limitations
 
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Capt. Marcus Thorne
Taming the Salt Wedge: The Chaos of the Kota River Estuary
The Kota Nightmare: Where Freshwater Hits the Shelf If you've never worked the Kota basin, you probably think a river is just a pipe that carries water from A to B. In Kota, that mindset gets you grou...
ADCP Hydrography
May 26, 2025 ADCP
Dr. Kenji Sato
Why Surface Data Lies About the Currents in Reine
The Scissor Effect at 67.9°N If you've spent any time in the Lofoten Archipelago, you know the water doesn't behave. In the constricted channels around Reine, we aren't dealing with a simple tidal osc...
ADCP Hydrography
May 25, 2025 ADCP
Capt. Marcus Thorne
Taming the Sandnessjøen Bottleneck: Why Standard Acoustic Profiling Fails at 66°N
The Chaos of the Helgeland Coast If you've never worked the waters around Sandnessjøen, you probably think of the Norwegian Coastal Current (NCC) as a steady river in the ocean. It isn't. At approxima...
ADCP Hydrography
May 25, 2025 ADCP
Elena Rodriguez
The Salt Wedge War: Unmasking the Vertical Shear of Steinkjer's Transition Zone
The Chaos Beneath the Surface at Steinkjer I remember the wind cutting through my gear as we pushed off the dock at dawn in May 2023. Looking out across the Steinkjer transition zone, the freshwater p...
ADCP Hydrography
May 24, 2025 ADCP
Elena Rodriguez
Fighting the Chaos of the Sunnmøre Coast: Why Ålesund Defies Standard Flow Models
The October Nightmare at 62° North We hit the water just before dawn in October 2023. The air was biting, smelling of salt and diesel, and the grey light of an Ålesund morning does nothing for the sce...
ADCP Hydrography
May 22, 2025 ADCP
Elena Rodriguez
Taming the Salt-Wedge: Acoustic Refraction and Volumetric Chaos in the Kaveri Delta
The Hydraulic Shock of the Northeast Monsoon Field data from the Kaveri Delta reveals a violent hydrological oscillation that defies standard steady-state modeling. During the Northeast Monsoon peak, ...
ADCP Hydrography
May 22, 2025 ADCP
Elena Rodriguez
Taming the Salt Wedge: The Reality of Water Movement in Sandefjord
The Chaos of the Skagerrak Interface If you've spent any time on a vessel in the Sandefjord basin, you know the water doesn't behave. It’s a volatile mixing zone where the freshwater runoff from the V...
ADCP Hydrography
May 20, 2025 ADCP
Dr. Kenji Sato
Taming the Torrent: The Hydraulic Chaos of the Upper Betwa Basin
The Malwa Plateau: A Hydrographic Minefield Bhopal (23.25° N, 77.41° E) isn't just a city; it's a drainage bottleneck. Most engineers look at a map and see a river system; I look at the Upper Betwa Ba...
ADCP Hydrography
May 20, 2025 ADCP
Jack Law
How do we measure Haugesund's coastal currents?
1. Where is Haugesund? 2. What are the circumstances of the coastal currents in the vicinity of Haugesund? 3. How to observe the coastal water flow of Haugesund? 4. How do ADCPs based on the Doppler p...
ADCP Hydrography
May 18, 2025 ADCP
Sarah Jenkins
Taming the Atlantic Surge: Solving the El Jadida Current Puzzle
The Chaos of the Doukkala-Abda Coastline If you've spent any time on the Moroccan shelf, you know that the waters off El Jadida don't follow the rules. We aren't dealing with a predictable linear flow...
ADCP Hydrography
May 16, 2025 ADCP
Dr. Alistair Vance
Taming the Chaos of the Mogador Shelf: The Reality of Essaouira's Water Column
The Atlantic Gauntlet at 31.9°N Essaouira isn't a place for textbook oceanography. Most people look at the Moroccan coast and see a linear stretch of Atlantic influence, but once you hit the Mogador i...
ADCP Hydrography
May 14, 2025 ADCP
Capt. Marcus Thorne
Fighting the Salt Wedge: The Chaos of the Casamance Estuary at Ziguinchor
The Ziguinchor Bottleneck: Where the Atlantic Invades Anyone who has spent a week on a survey vessel near 12.58° N, 16.27° W knows that the Casamance river doesn't follow the rules. It’s a high-energy...
ADCP Hydrography
May 14, 2025 ADCP
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