Underwater Photonics

25/07/2019

At the time it was commissioned in 1925, the USS Bass was the largest submarine ever built for the U.S. Navy. After not quite reaching her potential, she was used for target practice before being relocated in the 1960s. She now rests on the seafloor off Rhode Island in less than 50 meters (165 feet) of water. Synthetic aperture sonar data collected during the 2019 Technology Demonstration revealed that the submarine is split into two parts. For more on the Bass, visit: https://oceanexplorer.noaa.gov/technology/development-partnerships/ex1904/logs/july25/july25.html

[Synthetic aperture sonar image of the USS Bass collected using the towed KATFISH system showing that submarine is split into two parts.]

27/06/2019

Damage assessment underway!

CRCP featured stories: Scientists Take a First Look at Damage to Coral Reef Areas from the 2017 Hurricane Season - By Miguel Figuerola

01/06/2019

Ocean gliders are autonomous underwater vehicles that NOAA and other scientists use to collect valuable oceanographic data...and now are being used to help forecast and predict hurricane intensity. Dive into our latest podcast to learn more: https://oceanservice.noaa.gov/podcast/may19/ocean-gliders.html

28/05/2019

Now, this is loud: 270dB!

An investigation shows how single shock waves, produced in water jets by x-ray laser pulses, propagate and become ultrasonic shock trains through oblique shock reflections and cavitation. These trains are one of the loudest sounds ever made in liquid water and may damage samples studied with x-ray l...

13/05/2019

Good news for Ocean Exploration and Research

The University of Southern Mississippi is joining forces with four other nationally renowned ocean science institutions.

02/04/2019

Ocean exploration and findings!

14/08/2018

Studying precursors to extreme weather in the U.S.

NOAA ESRL Chemical Sciences Division (CSD): envisioning a nation that has the needed scientific understanding and information about our atmosphere (environmental intelligence) to make optimal decisions in the interests of the well being of current and future generations.

23/07/2018

Getting closer to identifying seabed material in situ!

Pressure chamber recreates deep-sea environment allowing assessment of laser performance.

27/01/2018

Is this cool or what?

Research News Optical Fiber Meets Earthquake Seismology Stewart Wills Researchers at Stanford University, Calif., USA, installed a 2.5-km run of optical fiber in existing conduit to test whether installed fiber might be used for earthquake monitoring. [Image: Stamen Design and the Victoria and Alber...

31/08/2017

This changes everything...

https://www.newscientist.com/article/2144866-first-underwater-entanglement-could-lead-to-unhackable-comms/

A Chinese experiment suggests submarines could use quantum communication to send messages secured by the laws of physics

08/06/2017

Optical fiber communications without the fiber
The Optical Society

http://breakingdefense.com/2017/05/say-it-with-lasers-45m-dod-prize-for-optical-coms/

PENTAGON: Live by the radio, die by the radio — unless, maybe, you switch to lasers, which are much harder to detect and interfere with. That’s why the Defense Department recently awarded a three-year, $45 million grant to a tri-service project for a laser communications system. “This is basically f...

17/04/2017

Ever wondered how fast the submarine cable network grows?

https://www.telegeography.com/products/commsupdate/articles/2017/04/13/cable-compendium-a-guide-to-the-weeks-submarine-and-terrestrial-developments/

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