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SUMMARY:Seismology for complex systems:  Earthquakes\, megafauna interact
 ions\, and soil health - Tarje Nissen-Meyer (University of Exeter)
DTSTART:20251112T140000Z
DTEND:20251112T150000Z
UID:TALK239380@talks.cam.ac.uk
CONTACT:Adriano Gualandi
DESCRIPTION:Seismic wavefields are exceptional carriers of information abo
 ut their sources and propagation paths\, providing long-range\, multiscale
 \, and spatially explicit data through non-invasive\, cost-efficient\, and
  scalable acquisition. Their well-understood and often linear physics enab
 les applications across a wide range of natural processes. Yet many system
 s—such as earthquakes\, soils\, and wildlife behaviour—are inherently 
 complex: multi-scalar\, agent-driven networks with emergent dynamics and a
 brupt transitions. In the absence of general theoretical frameworks for su
 ch systems\, comprehensive datasets are essential but often difficult to o
 btain.\n\nThis talk presents collaborative advances in seismic data acquis
 ition and modelling that address three challenges across seven orders of m
 agnitude—each constrained by intrinsic data poverty—and demonstrates h
 ow seismic methods can expand our understanding of complex systems\, or de
 duce valuable inference for science and society alike.\n\n* *Earthquake ha
 zards*: We developed a machine-learning framework that generates synthetic
  ground shaking in 3D Earth models quasi-instantaneously for arbitrary ear
 thquake scenarios. This bridges empirical data catalogues and physics-base
 d modelling towards  probabilistic hazard assessment.\n\n* *Wildlife behav
 iour* stands at the frontline of climate events\, biodiversity loss and la
 nd degradation. Our seismic recordings from the Kenyan savanna capture the
  movements and communications of large mammals across landscapes. These da
 ta can help understand interspecies interaction and support early-warning 
 systems that reduce human–wildlife conflict.\n\n* *Soil health*: Degrade
 d soils threaten food security and ecosystem stability. Through the non-pr
 ofit *Earth Rover Program*\, we demonstrate how 1000-Hz seismology can inf
 er key soil properties and scale towards providing precision interventions
  needed for the  transition to sustainable agriculture.
LOCATION:Wolfson Lecture Theatre
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