Sony’s Post

New year and new projects! As part of the Pro Bono service that VTA Tassin is delivering every year, founder Virginie Tassin Campanella, based on her expertise of seabed and ocean observation, was invited to join the Joint Task Force on SMART Submarine Cables, with a new team and agenda starting from 2024. This task force is designed to support the Science Monitoring and Reliable Telecommunications (SMART) Subsea Cables Initiative which seeks to revolutionize deep sea observing by equipping transoceanic telecommunications cables with sensors to provide novel and persistent insights into the state of the ocean, at a modest incremental cost. These cables are indeed designed to play a critical role for the monitoring of climate change, ocean heat content, circulation, sea level rise, early warnings for earthquakes and tsunamis, and monitor seismic activity for earth structure and related hazards. This task force is made up of 3 United Nations organizations: the International Telecommunications Union (#ITU), the World Meteorological Organization (#WMO), and the Intergovermental Oceanographic Commission (#IOC UNESCO). It is responsible for charting a path for the implementation of SMART monitoring capabilities into new cable installations worldwide. #Seabed #SeabedManagement #SubmarineCables #OceanObservation #OceanData #Telecommunication #ClimateChange #TsunamiPrevention #UNCLOS #Security #CompetingOceanUses #LegalFramework https://lnkd.in/gtp4866w

𝐓𝐡𝐞 𝐅𝐮𝐭𝐮𝐫𝐞 𝐆𝐫𝐨𝐰𝐭𝐡 𝐨𝐟 𝐔𝐧𝐝𝐞𝐫𝐰𝐚𝐭𝐞𝐫 𝐀𝐜𝐨𝐮𝐬𝐭𝐢𝐜 𝐂𝐨𝐦𝐦𝐮𝐧𝐢𝐜𝐚𝐭𝐢𝐨𝐧 𝐆𝐫𝐚𝐛 𝐭𝐡𝐞 𝐏𝐃𝐅 –  https://lnkd.in/d6KEcvax Underwater acoustic communication is a specialized form of communication that enables data transmission and messaging in underwater environments, where traditional radio frequency signals are ineffective due to the high attenuation and absorption of electromagnetic waves in water. By leveraging sound waves as a medium for data transmission, underwater acoustic communication systems facilitate communication between submarines, underwater vehicles, oceanographic instruments, and surface vessels, enabling ocean exploration, scientific research, underwater surveillance, and offshore operations. Environmental factors, such as temperature gradients, salinity variations, underwater topography, and ambient noise, impact the performance and reliability of underwater acoustic communication systems. Research efforts focus on modeling underwater acoustic channels, characterizing environmental effects, and developing adaptive communication techniques to mitigate the effects of channel impairments and enhance communication reliability in dynamic underwater environments. Underwater acoustic communication plays a pivotal role in enabling connectivity, data exchange, and command and control capabilities in underwater environments, supporting a wide range of applications in ocean exploration, scientific research, maritime surveillance, and offshore operations. As advancements in acoustic modem technology, signal processing algorithms, and underwater networking protocols continue to evolve, underwater acoustic communication systems will play an increasingly vital role in unlocking the mysteries of the ocean depths and supporting human activities in the underwater realm. 🌊📡 Application: Oil & Gas Military & Defense Homeland Security Scientific Research & Development Marine Top players: Teledyne Technologies Incorporated, Kongsberg Maritime, Thales Group, Ultra Electronics Group, Sonardyne International Ltd, EvoLogics GmbH, DSPComm, Mistral AI, Nortek, Aquatec Group, Baltrobotics, Tritech International Limited, GAVIAL HOLDINGS, INC., HYDROACOUSTIC TECHNOLOGY INC, LinkQuest Technologies Limited, Aquatic Sensors Network Technology, Proserv. #underwatercommunication #oceanexploration #underwatertechnology #acousticmodems #underwateracousticcommunication #acoustictechnology #marinecommunication #oceanography #marinescience #subseacommunication #underwateracoustics #oceanresearch #marineengineering

#Temperature is an essential #oceanographic variable (EOV) that still today remains coarsely resolved below the surface and near the #seafloor. Here, the authors gather evidence to confirm that Distributed #Acoustic Sensing (DAS) #technology can convert tens of kilometer-long seafloor fiber-optic telecommunication cables into dense #arrays of temperature anomaly #sensors having millikelvin (mK) sensitivity, thus allowing to monitor #oceanic processes such as #internalwaves and upwelling with unprecedented detail. Notably, they report #highresolution observations of highly coherent near-inertial and super-inertial internal waves in the NW Mediterranean sea, offshore of Toulon, France, having spatial extents of a few kilometers and producing maximum thermal anomalies of more than 5 K at maximum absolute rates of more than 1 K/h. They validated their observations with in-situ oceanographic sensors and an alternative optical fiber sensing technology. Currently, DAS only provides temperature changes estimates, however practical solutions are outlined to obtain continuous absolute temperature measurements with DAS at the seafloor. Their observations grant key advantages to DAS over established temperature sensors, showing its transformative potential for the description of seafloor temperature fluctuations over an extended range of spatial and temporal scales, as well as for the understanding of the evolution of the #ocean in a broad sense (e.g. physical and ecological). Diverse ocean-oriented fields could benefit from the potential applications of this fast-developing technology. Pelaez Quiñones, J.D., Sladen, A., Ponte, A. et al. High resolution seafloor thermometry for internal wave and upwelling monitoring using Distributed Acoustic Sensing. Sci Rep 13, 17459 (2023). https://lnkd.in/ghyhTWmd #scientificreports #mai #marineacoustics https://lnkd.in/ePt3sfvk

Imagine a deep-sea observation network that combines high-speed communication, marine life sensing, and power transmission all in one system. A recent study has demonstrated the potential of submarine optical fiber communication in creating this unrealized network. #OpticalFiber #SubmarineOpticalFiber #Fiber https://lnkd.in/dSPb-pdU

Great article explaining current situation of the ionosphere and its impact on GNSS technology.

As we navigate the challenge of #RisingSeaLevels, having accurate measurement techniques is essential.    #EOSsg scientists conduct relative sea-level monitoring in three ways: tide gauge, Global Navigation Satellite Systems, and Synthetic Aperture Radar. Check out our new blog post to learn about these methods and how they enable better-informed decision-making in the face of rising sea levels and #ClimateChange. 👇 https://lnkd.in/g7xF2iKG

"As NOAA busily prepares for the June launch of the last satellite in the GOES-R series, GOES-U, it is already working on the next series of advanced geostationary satellites—the Geostationary Extended Observations mission, or GeoXO. When GeoXO launches in the early 2030s, it will include several new state-of-the-art instruments onboard. One of those will be the Atmospheric Composition instrument, or ACX, which will provide critical information about Earth’s atmosphere from geostationary orbit." #satellitedata #earthobservation #atmosphere #airquality

Great to see that the Virtual Integration of Satellite and In-Situ Observation Networks (VISION) project has been funded through the NERC-Met Office TWINE programme for digital twins of the natural environment (https://lnkd.in/ezu6H9Rk). The National Centre for Atmospheric Science led team, including Luke Abraham and Maria Russo, will be combining atmospheric observations and models to optimise flight paths for research aircraft so that future research missions are more efficient with lower CO2 emissions. #digitaltwin #environment #carbonemissions

The advancement of crystal-clear FM communications stands as a testament to ingenuity and hard work. Widely used in radar, seismology, telemetry, and two-way radios, FM's superior signal-to-noise ratio makes it a pervasive technology. Discover the history, theory, and practical applications of FM, including FM radio and the radar altimeter. #FMCommunications #Innovation #Technology #SignalQuality #RealWorldApplications #FMTheory #FMHistory