Matches in SemOpenAlex for { <https://semopenalex.org/work/W2067115704> ?p ?o ?g. }
Showing items 1 to 68 of
68
with 100 items per page.
- W2067115704 endingPage "2938" @default.
- W2067115704 startingPage "2937" @default.
- W2067115704 abstract "Perturbation theory for scattering from rough surfaces is generalized to account for nonplanar insonifying waves. The generalized theory is applied to low-frequency (50–1500 Hz) sea surface scattering in the presence of an upward-refracting bubble layer. Using an exact numerical solution for the insonifying wave, it is shown that although the sea surface backscatter is enhanced by the upward-refracting bubble layer, the enhancement is not nearly enough to account for the experimentally observed backscatter. Several analytic approximations (plane wave, WKB, Snell’s law) are considered to gain some physical insight into the numerical calculation. At frequencies below a few hundred Hertz, the plane-wave approximation is adequate, that is, the bubble layer becomes acoustically transparent. At higher frequencies, the WKB approximation, which conserves energy, is surprisingly accurate. At low grazing angles and all frequencies, simply using the local wave number (i.e., Snell’s law) is a very poor approximation that does not conserve energy and grossly overestimates the effects of upward refraction. It is concluded that even with upward refraction present, scattering from the rough air–water interface is a minor contributor to the total acoustic backscatter. [Work supported by the Office of Naval Research.]" @default.
- W2067115704 created "2016-06-24" @default.
- W2067115704 creator A5017299003 @default.
- W2067115704 creator A5052317960 @default.
- W2067115704 creator A5068302734 @default.
- W2067115704 date "1995-11-01" @default.
- W2067115704 modified "2023-09-27" @default.
- W2067115704 title "Rough sea surface scattering in the presence of an upward‐refracting bubble layer" @default.
- W2067115704 doi "https://doi.org/10.1121/1.414435" @default.
- W2067115704 hasPublicationYear "1995" @default.
- W2067115704 type Work @default.
- W2067115704 sameAs 2067115704 @default.
- W2067115704 citedByCount "0" @default.
- W2067115704 crossrefType "journal-article" @default.
- W2067115704 hasAuthorship W2067115704A5017299003 @default.
- W2067115704 hasAuthorship W2067115704A5052317960 @default.
- W2067115704 hasAuthorship W2067115704A5068302734 @default.
- W2067115704 hasConcept C120665830 @default.
- W2067115704 hasConcept C121332964 @default.
- W2067115704 hasConcept C157915830 @default.
- W2067115704 hasConcept C191486275 @default.
- W2067115704 hasConcept C205318122 @default.
- W2067115704 hasConcept C30354325 @default.
- W2067115704 hasConcept C30475298 @default.
- W2067115704 hasConcept C41008148 @default.
- W2067115704 hasConcept C555944384 @default.
- W2067115704 hasConcept C57879066 @default.
- W2067115704 hasConcept C62520636 @default.
- W2067115704 hasConcept C74650414 @default.
- W2067115704 hasConcept C76155785 @default.
- W2067115704 hasConcept C88030215 @default.
- W2067115704 hasConcept C90081545 @default.
- W2067115704 hasConceptScore W2067115704C120665830 @default.
- W2067115704 hasConceptScore W2067115704C121332964 @default.
- W2067115704 hasConceptScore W2067115704C157915830 @default.
- W2067115704 hasConceptScore W2067115704C191486275 @default.
- W2067115704 hasConceptScore W2067115704C205318122 @default.
- W2067115704 hasConceptScore W2067115704C30354325 @default.
- W2067115704 hasConceptScore W2067115704C30475298 @default.
- W2067115704 hasConceptScore W2067115704C41008148 @default.
- W2067115704 hasConceptScore W2067115704C555944384 @default.
- W2067115704 hasConceptScore W2067115704C57879066 @default.
- W2067115704 hasConceptScore W2067115704C62520636 @default.
- W2067115704 hasConceptScore W2067115704C74650414 @default.
- W2067115704 hasConceptScore W2067115704C76155785 @default.
- W2067115704 hasConceptScore W2067115704C88030215 @default.
- W2067115704 hasConceptScore W2067115704C90081545 @default.
- W2067115704 hasIssue "5_Supplement" @default.
- W2067115704 hasLocation W20671157041 @default.
- W2067115704 hasOpenAccess W2067115704 @default.
- W2067115704 hasPrimaryLocation W20671157041 @default.
- W2067115704 hasRelatedWork W1985414846 @default.
- W2067115704 hasRelatedWork W2008924095 @default.
- W2067115704 hasRelatedWork W2026145740 @default.
- W2067115704 hasRelatedWork W2027840476 @default.
- W2067115704 hasRelatedWork W2042518431 @default.
- W2067115704 hasRelatedWork W2059726671 @default.
- W2067115704 hasRelatedWork W2062203073 @default.
- W2067115704 hasRelatedWork W2069708889 @default.
- W2067115704 hasRelatedWork W2152596975 @default.
- W2067115704 hasRelatedWork W401218028 @default.
- W2067115704 hasVolume "98" @default.
- W2067115704 isParatext "false" @default.
- W2067115704 isRetracted "false" @default.
- W2067115704 magId "2067115704" @default.
- W2067115704 workType "article" @default.