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Content provided by The University of Texas Marine Science Institute. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by The University of Texas Marine Science Institute or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://staging.podcastplayer.com/legal.
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Changing Course
Manage episode 472851722 series 1022694
Content provided by The University of Texas Marine Science Institute. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by The University of Texas Marine Science Institute or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://staging.podcastplayer.com/legal.
Currents at the bottom of the ocean can be just as fickle as wind currents at the surface. They can turn, speed up or slow down, and even reverse course. And they can change in just days or even hours.
That’s the conclusion of the most detailed study of sea-floor currents to date. Researchers anchored 34 instrument packages across a thousand-square-mile region off the coast of Mozambique, at the southeastern corner of Africa. The instruments monitored the currents for four years.
The study took place on the continental slope, at depths of up to a mile and a half. The slope is steep, and sharp canyons notch into it. Sediments tumble down the slope and through the canyons.
At the bottom of the slope, the currents generally flow from south to north. And in the canyons, they generally flow downhill. Speeds range from about a half to one-and-a-half miles per hour.
But researchers found a lot of variation. The speed changes, and so does the direction. Currents can even reverse direction—even in the canyons, where they sometimes flow uphill. Some of the changes are related to the tides or to passing storms or eddies. And others are related to the seasons, so they play out over days or weeks.
The researchers say a better understanding of sea-floor currents can tell them more about where ocean sediments come from. That can help them better understand changes in climate, the sources of pollution, and more—swirling along at the bottom of the sea.
161 episodes
Share
Manage episode 472851722 series 1022694
Content provided by The University of Texas Marine Science Institute. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by The University of Texas Marine Science Institute or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://staging.podcastplayer.com/legal.
Currents at the bottom of the ocean can be just as fickle as wind currents at the surface. They can turn, speed up or slow down, and even reverse course. And they can change in just days or even hours.
That’s the conclusion of the most detailed study of sea-floor currents to date. Researchers anchored 34 instrument packages across a thousand-square-mile region off the coast of Mozambique, at the southeastern corner of Africa. The instruments monitored the currents for four years.
The study took place on the continental slope, at depths of up to a mile and a half. The slope is steep, and sharp canyons notch into it. Sediments tumble down the slope and through the canyons.
At the bottom of the slope, the currents generally flow from south to north. And in the canyons, they generally flow downhill. Speeds range from about a half to one-and-a-half miles per hour.
But researchers found a lot of variation. The speed changes, and so does the direction. Currents can even reverse direction—even in the canyons, where they sometimes flow uphill. Some of the changes are related to the tides or to passing storms or eddies. And others are related to the seasons, so they play out over days or weeks.
The researchers say a better understanding of sea-floor currents can tell them more about where ocean sediments come from. That can help them better understand changes in climate, the sources of pollution, and more—swirling along at the bottom of the sea.
161 episodes
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Similar to Science and the Sea podcast
This Week in Evolution is a podcast on the biology of what makes us tick. Hosts Nels Elde and Vincent Racaniello take you through the new evolution that has been revolutionized by the field of genomics and molecular biology.
…
continue reading
Going Wild with Dr. Rae Wynn Grant is a different kind of nature show about the human drama of saving animals. From a paleoanthropologist who hunts fossils in conflict zones to someone who helped save an endangered species while in prison, in season four we will hear from real-life heroes and nature advocates with widely different expertise and life experiences that led them to be champions for the natural world. Wildlife biologist and host Dr. Rae Wynn-Grant has been studying wild animals i ...
…
continue reading
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The BMJ brings you interviews with the people who are shaping medicine and science around the world.
…
continue reading
Flash Forward is a show about possible (and not so possible) future scenarios. What would the warranty on a sex robot look like? How would diplomacy work if we couldn’t lie? Could there ever be a fecal transplant black market? (Complicated, it wouldn’t, and yes, respectively, in case you’re curious.) Hosted and produced by award winning science journalist Rose Eveleth, each episode combines audio drama and journalism to go deep on potential tomorrows, and uncovers what those futures might re ...
…
continue reading
As She Rises brings together local poets and activists from throughout North America to depict the effects of climate change on their home and their people. Each episode carries the listener to a new place through a collection of voices, local recordings and soundscapes. Stories span from the Louisiana Bayou, to the tundras of Alaska to the drying bed of the Colorado River. Centering the voices of native women and women of color, As She Rises personalizes the elusive magnitude of climate cha ...
…
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Concise summaries of everything published in the latest weekly issue of the New England Journal of Medicine (NEJM). NEJM publishes new medical research findings, review articles, and editorial opinion on topics of importance to biomedical science and clinical practice.
…
continue reading
Come dive into one of the curiously delightful conversations overheard at National Geographic’s headquarters, as we follow explorers, photographers, and scientists to the edges of our big, weird, beautiful world. Hosted by Peter Gwin and Amy Briggs.
…
continue reading
The Science Show gives Australians unique insights into the latest scientific research and debate, from the physics of cricket to prime ministerial biorhythms.
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continue reading
This Week in Microbiology is a podcast about unseen life on Earth hosted by Vincent Racaniello and friends. Following in the path of his successful shows 'This Week in Virology' (TWiV) and 'This Week in Parasitism' (TWiP), Racaniello and guests produce an informal yet informative conversation about microbes which is accessible to everyone, no matter what their science background.
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continue reading
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