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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 (2010) Sonar Measurements in Ship Wakes Simultaneous With TerraSAR-X Overpasses. IEEE Transactions on Geoscience and Remote Sensing, 48 (2), Seiten 841-851. 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

Kurzfassung

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.

Dokumentart:Zeitschriftenbeitrag
Titel:Sonar Measurements in Ship Wakes Simultaneous With TerraSAR-X Overpasses
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Soloviev, Alexandersoloviev@nova.edu
Gilman, Mikhailgilman@nova.edu
Young, Kathrynykathryn@nova.edu
Brusch, Stephanstephan.brusch@dlr.de
Lehner, Susannesusanne.lehner@dlr.de
Datum:Januar 2010
Erschienen in:IEEE Transactions on Geoscience and Remote Sensing
Referierte Publikation:Ja
In Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Ja
Band:48
DOI :10.1109/TGRS.2009.2032053
Seitenbereich:Seiten 841-851
ISSN:0196-2892
Status:veröffentlicht
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: Xiao Ming Li
Hinterlegt am:29 Okt 2010 10:03
Letzte Änderung:12 Dez 2013 21:04

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