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CATEGORIES:Class/Seminar
DESCRIPTION:Despite decades of satellite altimetry\, seafloor fabrics and o
 cean dynamics at kilometers in scale have remained poorly resolved. Using n
 ew observations from the Surface Water and Ocean Topography (SWOT) satellit
 e mission\, I present fine-scale marine tectonic features\, including indiv
 idual abyssal hills\, small seamounts\, and submarine canyons previously hi
 dden beneath sediments and ice. Abyssal hills can extend across fracture zo
 nes and exhibit symmetric organization about mid-ocean ridges\, suggesting 
 basin-scale modulation of magmatic processes. Using a linear wave framework
 \, I show that abyssal hills act as a high-pass filter in generating intern
 al tides\, and the conversion rate is highly sensitive to abyssal hill morp
 hology. Resolving these small-scale seafloor fabrics is therefore essential
  for understanding ocean mixing that sustains the global overturning circul
 ation\, providing a critical link between geophysics and climate science.\n
 \n \n\nSpeaker-recommended reading: Voosen\, Paul. "Thousands of previously
  unknown mountains and hills spotted in best-yet seafloor map." Science New
 s\, 12 Dec. 2024. https://www.science.org/content/article/thousands-previou
 sly-unknown-mountains-and-hills-spotted-best-yet-seafloor-map
DTEND:20260205T210000Z
DTSTAMP:20260307T114130Z
DTSTART:20260205T200000Z
GEO:37.426402;-122.172635
LOCATION:Mitchell Earth Sciences\, 350/372
SEQUENCE:0
SUMMARY:Geophysics Seminar - Yao Yu\, "From Marine Tectonics to Ocean Mixin
 g: A Story of Seafloor Fabrics"
UID:tag:localist.com\,2008:EventInstance_51817022610497
URL:https://events.stanford.edu/event/geophysics-seminar-yao-yu-from-marine
 -tectonics-to-ocean-mixing-a-story-of-seafloor-fabrics
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