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Did you mean megaureter (1,158 results)?
Oceanic plateau of the Hawaiian mantle plume head subducted to the uppermost lower mantle.
Wei SS, Shearer PM, Lithgow-Bertelloni C, Stixrude L, Tian D. Wei SS, et al. Science. 2020 Nov 20;370(6519):983-987. doi: 10.1126/science.abd0312. Science. 2020. PMID: 33214281
Although the mantle plume hypothesis predicts an oceanic plateau produced by massive decompression melting during the initiation stage of the Hawaiian hot spot, the fate of this plateau is unclear. We discovered a megameter-scale portion of thickened oceanic crust in the u …
Although the mantle plume hypothesis predicts an oceanic plateau produced by massive decompression melting during the initiation stage of th …
On the stability of long-range sound propagation through a structured ocean.
Wolfson MA, Tomsovic S. Wolfson MA, et al. J Acoust Soc Am. 2001 Jun;109(6):2693-703. doi: 10.1121/1.1362685. J Acoust Soc Am. 2001. PMID: 11425112
Several acoustic experiments show a surprising degree of stability in wave fronts propagating over multi-megameter ranges through the ocean's sound channel despite the presence of random-like, sound-speed fluctuations. ...
Several acoustic experiments show a surprising degree of stability in wave fronts propagating over multi-megameter ranges through the …
Ray-based description of shadow zone arrivals.
Virovlyansky AL, Kazarova AY, Lyubavin LY. Virovlyansky AL, et al. J Acoust Soc Am. 2011 May;129(5):2851-62. doi: 10.1121/1.3569733. J Acoust Soc Am. 2011. PMID: 21568389
Field experiments and numerical simulation show that due to scattering from internal-wave-induced sound speed perturbations, the sound energy at megameter ranges penetrates well below the unperturbed timefront, i.e., into the geometric shadow. ...
Field experiments and numerical simulation show that due to scattering from internal-wave-induced sound speed perturbations, the sound energ …
Observations of polarized seismoacoustic T waves at and beneath the seafloor in the abyssal Pacific ocean.
Butler R. Butler R. J Acoust Soc Am. 2006 Dec;120(6):3599-606. doi: 10.1121/1.2354066. J Acoust Soc Am. 2006. PMID: 17225389
Seismoacoustic Ti waves propagating at the sound speed of water are routinely observed over megameter distances at the deep (4979 m) seafloor Hawaii-2 Observatory (H2O) between Hawaii and California, even though the seafloor site is within a shadow zone for acoustic wave p …
Seismoacoustic Ti waves propagating at the sound speed of water are routinely observed over megameter distances at the deep (4979 m) …
Ray-based description of normal modes in a deep ocean acoustic waveguide.
Virovlyansky AL, Kazarova AY, Lyubavin LY. Virovlyansky AL, et al. J Acoust Soc Am. 2009 Mar;125(3):1362-73. doi: 10.1121/1.3075765. J Acoust Soc Am. 2009. PMID: 19275293
An approximate analytical description of the modal structure at megameter ranges is derived by combining two known results: (i) relations expressing mode amplitudes through parameters of ray paths and (ii) stochastic ray theory. ...
An approximate analytical description of the modal structure at megameter ranges is derived by combining two known results: (i) relat …
Temporal coherence after multiple forward scattering through random three-dimensional inhomogeneities in an ocean waveguide.
Chen T, Ratilal P, Makris NC. Chen T, et al. J Acoust Soc Am. 2008 Nov;124(5):2812-22. doi: 10.1121/1.2967475. J Acoust Soc Am. 2008. PMID: 19045769
It is used to explain the time scale of acoustic field fluctuations observed at megameter ranges in various deep ocean-acoustic transmission experiments. ...
It is used to explain the time scale of acoustic field fluctuations observed at megameter ranges in various deep ocean-acoustic trans …
Optical amplifier for space applications.
Fork RL, Cole S, Diffey W, Gamble L, Keys A. Fork RL, et al. Opt Express. 1999 Dec 6;5(12):292-301. doi: 10.1364/oe.5.000292. Opt Express. 1999. PMID: 19401734 Free article.
Applications of interest are the transmission of space solar power over multi-megameter distances, as to distant spacecraft, or to remote sites with no preexisting power grid....
Applications of interest are the transmission of space solar power over multi-megameter distances, as to distant spacecraft, or to re …