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Sonar Measurements in Ship Wakes Simultaneous With TerraSAR-X Overpasses

Soloviev, Alexander und Gilman, Mikhail und Young, Kathryn und Brusch, Stephan und Lehner, Susanne (2009) Sonar Measurements in Ship Wakes Simultaneous With TerraSAR-X Overpasses. IEEE Transactions on Geoscience and Remote Sensing, 48 (2), Seiten 841-851. IEEE - Institute of Electrical and Electronics Engineers. DOI: 10.1109/TGRS.2009.2032053 ISSN 0196-2892

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Offizielle URL: http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=5325638&tag=1


Abstract�A pilot experiment was conducted in the period from April to June 2008 in the Straits of Florida near Port Everglades, Florida, in order to study the dynamics of far wakes of ships. In this experiment, a small boat with downward-looking sonar made �snakelike� sections through wakes of ships of opportunity during the TerraSAR-X overpasses. The ship and its parameters (length, speed, course, etc.) were identified utilizing an automated identification system. The sonar responded to the clouds of microbubbles generated in the ship wake by the propulsion system and ship-hull turbulence. The ship wakes were traced in the sonar signal typically from 10 to 30 min after the ship�s passage. A preliminary analysis of the measurements suggests that the visibility of the centerline ship wake in synthetic aperture radar (SAR) images is correlated with the presence of microbubbles in the wake. This supports the hypothesis that natural surfactants scavenged and brought to the surface by rising bubbles play an important role in the wake visibility in SAR. The influence of the wind-wave field on the ship wake, as well as the effect of screening of the wind-wave field by the ship�s hull, adds another level of complexity to wake patterns observed in SAR images.

Titel:Sonar Measurements in Ship Wakes Simultaneous With TerraSAR-X Overpasses
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iD
Soloviev, Alexandersoloviev@nova.eduNICHT SPEZIFIZIERT
Gilman, Mikhailgilman@nova.eduNICHT SPEZIFIZIERT
Young, Kathrynykathryn@nova.eduNICHT SPEZIFIZIERT
Brusch, Stephanstephan.brusch@dlr.deNICHT SPEZIFIZIERT
Lehner, Susannesusanne.lehner@dlr.deNICHT SPEZIFIZIERT
Erschienen in:IEEE Transactions on Geoscience and Remote Sensing
Referierte Publikation:Ja
In Open Access:Nein
In ISI Web of Science:Ja
DOI :10.1109/TGRS.2009.2032053
Seitenbereich:Seiten 841-851
Verlag:IEEE - Institute of Electrical and Electronics Engineers
Stichwörter:Geophysical measurements, remote sensing, sonar imaging, synthetic aperture radar (SAR).
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W EO - Erdbeobachtung
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W EO - Erdbeobachtung
DLR - Teilgebiet (Projekt, Vorhaben):W - Vorhaben Geowissenschaftl. Fernerkundungs- und GIS-Verfahren (alt)
Standort: Berlin-Adlershof , Oberpfaffenhofen
Institute & Einrichtungen:Institut für Methodik der Fernerkundung > Gewässerfernerkundung
Hinterlegt von: Li, Xiao Ming
Hinterlegt am:29 Okt 2010 10:04
Letzte Änderung:08 Mär 2018 18:34

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