This complements the work being explored in passive #acoustics, #robotics, & computer vision—multi‑modal sensing for hard‑to‑access polar regions.More at our research collective's web page: org-arl.github.io/ipaomg/
#ActiveAcoustics #Glaciology #ClimateChange #SeaLevelRise #OceanScience
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What active #acoustics can resolve:
• #Fjord temperature–salinity structure & mixing
• #Glacier terminus morphology
• Subglacial discharge, plume dynamics
Why it matters:Precise observations help constrain projections of climate-change impact & improve understanding of glacier–ocean interface.
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We welcome teams around the world to compete, innovate & explore in one of China’s most beautiful coastal cities. The new rulebook is here: sauvc.org/rulebook . Pay special attention to the video submission rules! The video submission deadline is Nov 29th. (2/2)

It uses #machinelearning for #visual #localization underwater with photos & #novelviewsynthesis to augment training data & improve estimation at unseen viewpoints.We enhance robustness by fusing with more sensors via a Kalman filter & evaluated it across clear & turbid waters in #Singapore. (2/2)

You can also read the pdf shared here: arl.nus.edu.sg/wp-content/u...

This region is poorly studied due to calving hazards.In 2023, GLAMOR collected thermohaline+acoustic+ video data right up next to the #glacier terminus—likely one of the 1st such v.close direct surveys of this zone.These observations enhance our understanding of #polar ablation processes here (2/2).

We aimed for a holistic system for comprehensive #bioacoustic monitoring of marine mammals. Successfully deployed this in 2022 and used this to lower-bound the no. of simultaneous vocalizing animals in doi.org/10.1109/OCEA.... Hopefully, we manage to use it for longer monitoring in years ahead (3/3)

..of the water surface at the time of the call, & displays these results alongside recorded environmental parameters in real-time. The idea is that while acoustics is a great way to trigger detection, its useful to look at the scene multi-modally to get an overall 'picture' of what's happening.(2/3)

This is a big step toward using acoustic monitoring for large-scale, long-term tracking of glacier melt—helping us understand ice losses around the world. 🌎🔉 (4/4)

To tackle this, we created a physics-based model to explain how the sound varies across the glacial bay! The result? We can now estimate how much sound melting glaciers produce, and directly link this to what drives melt (like water temperature) and its outcome (how fast the glaciers retreat). (3/4)

This work is really to my heart. It took years of painstakingly collecting acoustic data in icy environments, building physics models, and unraveling the story hidden in the glacier sounds. Glacier sounds are complex—changing depending on where you listen, like a natural surround sound system. (2/4)

Oceanic engineering is vital for understanding our ocean, including its interaction with climate systems and enabling sustainable living. And I am proud to be contributor in this #OceanEngineering community! (3/3)

I'm also featured in an ocean engineering e-book: www.nxtbook.com/nxtbooks/iee.... Also check out thrilling clips from the our marine robotics competition event, Singapore AUV Challenge, at 5:03 & 5:20! 🤖
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Watch out for new teams from: Azerbaijan,Australia,Saudi this time, apart from Singapore,Malaysia,Turkey,Indonesia,India,Bangladesh,Sri Lanka,Taiwan,Hong Kong & Macau. If you're around in Singapore, do join us for the fun!
This event is also endorsed by the @unoceandecade.bsky.social
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Our findings can help enhance understanding of ice dynamics, complement our ongoing study on acoustic monitoring at glaciers, & may also pave the way for real-time analysis of glacial changes. Paper available here, or can be downloaded from my webpage: ieeexplore.ieee.org/document/107... (2/2)