HR: 10:20h
AN: OS21S-07    [PDF]
TI: Environmental Electromagnetic Fields in the Coastal Ocean
AU: * Tyler, R H
EM: tyler@apl.washington.edu
AF: Applied Physics Laboratory, University of Washington, 1013 NE 40th St , Seattle, WA 98105
AU: Sanford, T B
EM: sanford@apl.washington.edu
AF: Applied Physics Laboratory, University of Washington, 1013 NE 40th St , Seattle, WA 98105
AB: Electromagnetic fields below 1 kHz in the coastal ocean are generated by various types of ocean flow but also include fields generated in the lower atmosphere (e.g. lightning) and ionosphere and magnetosphere which propagate into the ocean along various paths. Using theory and a recently developed numerical model, we explore this topic and present results primarily centered on describing the dominant sources and propagation paths. We also present estimates of the fluxes of electromagnetic energy and charged particles through the air/sea sediment/sea boundaries. The numerical model of ocean electrodynamics is a useful and logical addition to ocean modeling. We describe the model and its connection with ocean flow models such as ROMS.
DE: 0619 Electromagnetic theory
DE: 0644 Numerical methods
DE: 0925 Magnetic and electrical methods
DE: 1515 Geomagnetic induction
SC: OS
MN: 2002 Ocean Sciences Meeting