Seafloor Mapping in 60 Seconds | Nautilus Live
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- Опубликовано: 29 ноя 2023
- How exactly do we map the seafloor? Onboard E/V Nautilus, our Corps of Exploration uses the Kongsberg EM302 multibeam echosounder to create detailed seafloor maps. By generating sound beams and collecting returning data, this technology allows us to piece together the topography of the deep sea. Seafloor mapping began over a century ago, yet less than 25 percent of the world’s ocean has been charted at high resolutions. Our seafloor maps contribute to the Seabed 2030 initiative, an international collaborative project to combine all bathymetric data to create a comprehensive map of the ocean floor.
Having 3D maps of the seafloor also leads our ocean exploration goals. When exploring little-known ocean regions, we often need to create our own maps to plan efficient and safe operations. Whether focused on a canyon, seamount, or shipwreck, creating a map allows us to identify potential targets, cutting down exploration time and boosting our mission efficiency. Before ROVs are deployed, our team must first map the area to understand the region's characteristics and identify potential benthic habitats, seeps, and other environments and resources worthy of exploration.
E/V Nautilus is exploring unknown regions of the ocean seeking out new discoveries in biology, geology, and archaeology. Join us 24/7 for live video from the seafloor and to ask questions of our explorers currently aboard Nautilus: www.nautiluslive.org.
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So close yet, seemingly, so far! Keep up your excellent pioneering work!
This was really interesting. Thank you for explaining how this was done.
Im looking for something burger shaped
🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣
😂😂🤣
Does the echo location disturb the animals in the sea?
Sonar is known to hurt marine life, and even people who get in the way. There are practices to avoid those cases (watching for life, low power settings, etc.)
the echosounder used in this video is rated for 214 dB , can be lowered to about 180 dB in something the manual calls "Functionality to limit Mammal Harassment". 140 dB is a jet fighter taking off 50m away. so yeah it disturbs and can hurt marine life.
That sounds..not so good
It's only scanning the entire ocean once it'll be OK 👍 👌
The sonar installed on the hull of Nautilus has a very short, directional acoustic pulse and the research studies have determined its impact on marine mammals to be de minimis, and not expected to have any effect on marine mammals. This is the same sonar used on a handful of other scientific mapping vessels of similar size and operated by federal agencies, universities, and non-profit organizations which are different from high-energy sonars frequently seen in the news. We partner with NOAA for the Environmental Assessment of the impact of all sonars on marine mammals. Learn more here: oceanexplorer.noaa.gov/explorations/sound01/background/acoustics/acoustics.html
I just love and admire you so much EVNautilus! Thank you for sharing.
Very cool!
I can't wait to see what you find!
Please dont hide the good stuff from us.
Ayy, cool video guys👍✌️
How do you work around "false sea beds" like lantern fish?
This video just makes me more worried about what is really going on with the satellite imaging layer at this (35°46'59.9"N 18°39'21.6"E) google maps location.
💙
Any such equipment for river bed measurement stitched to either banks and above water features. Project location south east asia.
And does this sonar process compel whales and sharks to beach themselves trying to escape the noise?
🎉
Awesome video! Makes me wonder if you could use a pair of underwater drones like the Chasing M2 Pro to get a even more detailed three dimensional representation?
Has there been a depth it doesn't work at?
A bottomless pit. 🙄
is it dangerous to marine life right under the ship?
1st on block of sea floor 😅😅😅😅
I would like to come work and live on your ship.. ill do it for free.
So, who's food will you be eating and who's liquids will you be drinking? and whose space to sleep in will you be taking and whose toilet water will you be using and who's toilet paper and paper towels and soap will you be using???Shall I go on???? Even flies and rats and bugs are eliminated for eating things that belong to the crew. 🙄
Nautilus
Globe propaganda. All angle measurements require 2 straight lines. This is done agains a horizontal plane. FLAT
The needs of the many, outweigh the needs of the few..."SPOCK".
"Globe propaganda" lmao bc anyone benefits from saying earth is round. People like you think it's flat an it changes nothing other than risking our future generations from tardation.
I'm glad to see that someone else has noticed.
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