> Details
Schulze, Inken Katrin
[Author]
;
Arz, Helge Wolfgang
[Degree supervisor];
Krastel, Sebastian
[Degree supervisor]
Universität Greifswald
Detection of benthic life by high-frequency hydroacoustic and seismic methods
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- Media type: E-Book; Thesis
- Title: Detection of benthic life by high-frequency hydroacoustic and seismic methods
- Contributor: Schulze, Inken Katrin [Author]; Arz, Helge Wolfgang [Degree supervisor]; Krastel, Sebastian [Degree supervisor]
- Corporation: Universität Greifswald
-
Published:
Greifswald, 31.05.2022
- Extent: 1 Online-Ressource (PDF-Datei: 108 Seiten, 57336 Kilobyte); Illustrationen (farbig), Diagramme (farbig)
- Language: English
- Identifier:
-
RVK notation:
UF 6920
UT 2500 : Seismik
-
Keywords:
Hydroakustik
>
Geophysik
>
Ostsee
>
Nordsee
>
Meeresboden
>
Benthos
>
Fernerkundung
>
Seismik
>
Habitat
- Origination:
-
University thesis:
Dissertation, Mathematisch-Naturwissenschaftliche Fakultät der Universität Greifswald, 2023
-
Footnote:
Literaturverzeichnis: Seite 100-105
Zusammenfassung in deutscher Sprache
-
Description:
Hydroakustik, Geophysik, Ostsee, Nordsee, Meeresboden, Benthos, Fernerkundung, Seismik, Habitat, Fächerecholot, Marine Habitatkartierung, akustische Rückstreustärke, acoustic backscatter, marine habitat mapping, multibeam echosounder
Seas and oceans are essential for the global ecosystem. Entire societies, economies and countless livelihoods rely on their good environmental status. Yet, pressures on marine environments are increasing. An extensive assessment and monitoring of marine habitats is a vital precondition for understanding these systems and their sustainable conservation. Remote sensing methods can temporally accelerate the mapping, improve the spatial resolution and support the interpretation of large areas. Hydroacoustic becomes the method of choice for areas deeper than the coastal zone as optical signals are limited by strong attenuation in the water column. Apart from depth measurements for the creation of bathymetric charts, the recording of backscatter strength is useful for the characterization of the seafloor surface. The direct influence of the inhabiting benthic community on the backscattered signal is rarely considered, although it can be utilized for the detection of benthic life. Information about habitat-specific backscatter responses or a hydroacoustic remote sensing catalog for benthic habitats is missing so far. The multibeam echosounder (MBES) has the advantage of recording both, bathymetry and backscatter strength simultaneously with related incidence angle. Further, recent technological developments allow to change between frequencies. Angular range curves supported the quantification of backscatter strength of different frequencies. Acoustic data sets were complemented by ... - Access State: Open Access