FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W107051574> ?p ?o ?g. }

• W107051574 abstract "Modern swath bathymetric systems not only record the sound travelling time of the acoustic pulse, but also the secho intensity. If in addition the the transmitting configuration of the system as well as the echo amplification are recorded, the backscatter strength of the seafloor can be determined.Measurements of acoustic backscatter strength can be applied to analyse sea floor coverage on a spatial extent. They provide consistent coverage compared to analyses based on only a few surface samples. In particular the spatial validity of surface samples can be determined by analyses based on acoustic backscatter strength and sampling locations representative for the surrounding area can be determined.During the cruise ANTXVII/4 of the German RV Polarstern, a high precision swath bathymetry survey was performed along the European continental margin in the Porcupine Seabight off southwest Ireland. Within the Porcupine Seabight a number of mound structures have been discovered earlier, most of them being carbonate mounds. The structure and genesis of these mounds are the main objective of recent investigations. The cruise and the subsequent investigations are part of the EU project GEOMOUND. They focus on the Belgica mound province.Besides the depth measurements, the acoustic intensities of the received echos have been recorded. Taking into account the transmitted and received sound level, acoustic beam patterns, and acoustic attenuation in the water column, the backscatter strength of the ensonified area was calculated. This backscatter information is used to analyse the sea floor coverage. Based on the data of the systematic survey the spatial variation of the backscatter strength was derived. Regions of equal backscatter characteristic can be combined and functions showing the dependency between backscatter strength and incidence angle of the acoustic wave can be determined. These functions help interpreting sea floor coverage.The mapping of the backscatter strength of the mound area indicates clear changes in backscatter strength. Small and shallow channels show a lower backscatter strength than their surroundings. That means the surface coverage of the channels is smooth with respect to the surroundings. One interpretation of this surface patterns points to currents that have built these structures by depositing sediments. In contrast, most of the mounds indicate a strong backscatter strength. Since other investigations showed that some of the mounds are populated by corals, these corals could cause higher backscatter strength.A detailed investigation of the mounds indicates differences of backscatter characteristics between them. There are mounds that show strong backscatter on their slopes but low backscatter on their top. Other mounds show stronger backscatter on their top but lower backscatter on their slopes. These differences could indicate varying surface coverage of those mounds. Based on this information, the mounds are separated and classified." @default.
• W107051574 created "2016-06-24" @default.
• W107051574 creator A5008587222 @default.
• W107051574 date "2002-01-01" @default.
• W107051574 modified "2023-09-27" @default.
• W107051574 title "Multibeam backscatter strength as a tool for sea floor classification" @default.
• W107051574 hasPublicationYear "2002" @default.
• W107051574 type Work @default.
• W107051574 sameAs 107051574 @default.
• W107051574 citedByCount "0" @default.
• W107051574 crossrefType "journal-article" @default.
• W107051574 hasAuthorship W107051574A5008587222 @default.
• W107051574 hasConcept C111368507 @default.
• W107051574 hasConcept C117485682 @default.
• W107051574 hasConcept C127313418 @default.
• W107051574 hasConcept C174943157 @default.
• W107051574 hasConcept C184751465 @default.
• W107051574 hasConcept C203718221 @default.
• W107051574 hasConcept C30354325 @default.
• W107051574 hasConcept C33613203 @default.
• W107051574 hasConcept C41008148 @default.
• W107051574 hasConcept C50254455 @default.
• W107051574 hasConcept C555944384 @default.
• W107051574 hasConcept C76155785 @default.
• W107051574 hasConceptScore W107051574C111368507 @default.
• W107051574 hasConceptScore W107051574C117485682 @default.
• W107051574 hasConceptScore W107051574C127313418 @default.
• W107051574 hasConceptScore W107051574C174943157 @default.
• W107051574 hasConceptScore W107051574C184751465 @default.
• W107051574 hasConceptScore W107051574C203718221 @default.
• W107051574 hasConceptScore W107051574C30354325 @default.
• W107051574 hasConceptScore W107051574C33613203 @default.
• W107051574 hasConceptScore W107051574C41008148 @default.
• W107051574 hasConceptScore W107051574C50254455 @default.
• W107051574 hasConceptScore W107051574C555944384 @default.
• W107051574 hasConceptScore W107051574C76155785 @default.
• W107051574 hasLocation W1070515741 @default.
• W107051574 hasOpenAccess W107051574 @default.
• W107051574 hasPrimaryLocation W1070515741 @default.
• W107051574 hasRelatedWork W1518574199 @default.
• W107051574 hasRelatedWork W1584097852 @default.
• W107051574 hasRelatedWork W1592991396 @default.
• W107051574 hasRelatedWork W1984707318 @default.
• W107051574 hasRelatedWork W1990884810 @default.
• W107051574 hasRelatedWork W1999750078 @default.
• W107051574 hasRelatedWork W2025599058 @default.
• W107051574 hasRelatedWork W2027989801 @default.
• W107051574 hasRelatedWork W2039528350 @default.
• W107051574 hasRelatedWork W2145963807 @default.
• W107051574 hasRelatedWork W2237329260 @default.
• W107051574 hasRelatedWork W2415223035 @default.
• W107051574 hasRelatedWork W2618983406 @default.
• W107051574 hasRelatedWork W2908627649 @default.
• W107051574 hasRelatedWork W2909209016 @default.
• W107051574 hasRelatedWork W589328324 @default.
• W107051574 hasRelatedWork W592263858 @default.
• W107051574 hasRelatedWork W593443123 @default.
• W107051574 hasRelatedWork W598790102 @default.
• W107051574 hasRelatedWork W2110949298 @default.
• W107051574 isParatext "false" @default.
• W107051574 isRetracted "false" @default.
• W107051574 magId "107051574" @default.
• W107051574 workType "article" @default.