Matches in SemOpenAlex for { <https://semopenalex.org/work/W749796890> ?p ?o ?g. }
Showing items 1 to 65 of
65
with 100 items per page.
- W749796890 abstract "Abstract : A component of the Office of Naval Research (ONR) funded Windy Islands Soliton Experiment (WISE) was conducted from 13 - 15 April 2005 on the continental shelf in the northeast portion of the South China Sea to study the effects of nonlinear internal waves on the transmission of a 400-Hz signal. To capture the ocean variability along the acoustic path, a series of environmental moorings were deployed that sampled the water column. Significant variability in the sound-speed field was observed to be induced by nonlinear internal tides with a broad (~ 10 km) horizontal scale (referred to as the pattern) and narrow (< 1 km), high-frequency, nonlinear internal depression and elevation waves superimposed on the internal tides. Through the use of an empirical sound-speed field and a coupled, normal-mode acoustic propagation model, the phenomenology of the nonlinear internal wave field upon the observed intensity pattern was examined. Analysis of the observed and modeled acoustic intensity time-series indicates that the long-wave pattern dictates, to a large degree, the temporal changes in the vertical structure of the sound intensity level. Furthermore, both measurement and model results show that when the thermocline was rapidly displaced by the nonlinear internal waves, sound intensity fluctuations reached their maximum. Modeling results suggest that these maximums are due to the scattering of acoustic energy into both higher and lower acoustic modes along the edges of the elevation/depression waves where strong horizontal sound-speed gradients were present. An additional goal of this paper is to propose and validate an extended statistical theory that relates the observed statistics of the acoustic intensity to the number of resolvable arrivals. The number of resolvable arrivals depends on signal bandwidth and the criteria of well separateness and was found to vary significantly as the nonlinear internal waves evolve along the transmission path." @default.
- W749796890 created "2016-06-24" @default.
- W749796890 creator A5016973782 @default.
- W749796890 date "2008-03-01" @default.
- W749796890 modified "2023-09-27" @default.
- W749796890 title "Statistics of acoustic pulse signals through nonlinear waves on the continental shelf of the northeastern South China Sea" @default.
- W749796890 hasPublicationYear "2008" @default.
- W749796890 type Work @default.
- W749796890 sameAs 749796890 @default.
- W749796890 citedByCount "0" @default.
- W749796890 crossrefType "journal-article" @default.
- W749796890 hasAuthorship W749796890A5016973782 @default.
- W749796890 hasConcept C105824904 @default.
- W749796890 hasConcept C111368507 @default.
- W749796890 hasConcept C121332964 @default.
- W749796890 hasConcept C127313418 @default.
- W749796890 hasConcept C146864707 @default.
- W749796890 hasConcept C165205528 @default.
- W749796890 hasConcept C184751465 @default.
- W749796890 hasConcept C203718221 @default.
- W749796890 hasConcept C204723758 @default.
- W749796890 hasConcept C24890656 @default.
- W749796890 hasConcept C2776968207 @default.
- W749796890 hasConcept C49204034 @default.
- W749796890 hasConcept C63981117 @default.
- W749796890 hasConceptScore W749796890C105824904 @default.
- W749796890 hasConceptScore W749796890C111368507 @default.
- W749796890 hasConceptScore W749796890C121332964 @default.
- W749796890 hasConceptScore W749796890C127313418 @default.
- W749796890 hasConceptScore W749796890C146864707 @default.
- W749796890 hasConceptScore W749796890C165205528 @default.
- W749796890 hasConceptScore W749796890C184751465 @default.
- W749796890 hasConceptScore W749796890C203718221 @default.
- W749796890 hasConceptScore W749796890C204723758 @default.
- W749796890 hasConceptScore W749796890C24890656 @default.
- W749796890 hasConceptScore W749796890C2776968207 @default.
- W749796890 hasConceptScore W749796890C49204034 @default.
- W749796890 hasConceptScore W749796890C63981117 @default.
- W749796890 hasLocation W7497968901 @default.
- W749796890 hasOpenAccess W749796890 @default.
- W749796890 hasPrimaryLocation W7497968901 @default.
- W749796890 hasRelatedWork W105277006 @default.
- W749796890 hasRelatedWork W1965403591 @default.
- W749796890 hasRelatedWork W1981968901 @default.
- W749796890 hasRelatedWork W1985008125 @default.
- W749796890 hasRelatedWork W1996303552 @default.
- W749796890 hasRelatedWork W2004806809 @default.
- W749796890 hasRelatedWork W2034900489 @default.
- W749796890 hasRelatedWork W2035845524 @default.
- W749796890 hasRelatedWork W2042748162 @default.
- W749796890 hasRelatedWork W2042833132 @default.
- W749796890 hasRelatedWork W2061871145 @default.
- W749796890 hasRelatedWork W2071413369 @default.
- W749796890 hasRelatedWork W2332264812 @default.
- W749796890 hasRelatedWork W2553097803 @default.
- W749796890 hasRelatedWork W2791848380 @default.
- W749796890 hasRelatedWork W2967389361 @default.
- W749796890 hasRelatedWork W2986656249 @default.
- W749796890 hasRelatedWork W3197939995 @default.
- W749796890 hasRelatedWork W382943365 @default.
- W749796890 hasRelatedWork W2088070472 @default.
- W749796890 isParatext "false" @default.
- W749796890 isRetracted "false" @default.
- W749796890 magId "749796890" @default.
- W749796890 workType "article" @default.