Wave dispersion by Antartic pancake ice from SAR images: a method for measuring ice thickness (Contributo in atti di convegno)

Type
Label
  • Wave dispersion by Antartic pancake ice from SAR images: a method for measuring ice thickness (Contributo in atti di convegno) (literal)
Anno
  • 2006-01-01T00:00:00+01:00 (literal)
Alternative label
  • Peter Wadhams, Flavio Parmiggiani, Giacomo De Carolis (2006)
    Wave dispersion by Antartic pancake ice from SAR images: a method for measuring ice thickness
    in Advances in SAR oceanography from Envisat and ERS missions, Frascati (I), 24-26 January 2006
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Peter Wadhams, Flavio Parmiggiani, Giacomo De Carolis (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#titoloVolume
  • Proceedings of SEASAR 2006 Advances in SAR Oceanography from Envisat and ERS Missions (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#volumeInCollana
  • 613 (literal)
Note
  • Scopus (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Giacomo De Carolis - CNR-ISSIA, Bari (literal)
Titolo
  • Wave dispersion by Antartic pancake ice from SAR images: a method for measuring ice thickness (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#isbn
  • 92-9092-924-3 (literal)
Abstract
  • A synthetic aperture radar (SAR) image of the advancing winter marginal ice zone (MIZ) in the Antarctic, composed of frazil-pancake ice, has been analysed in a new way in order to test the predictions of a recently developed theory of wave dispersion in pancake ice which treats the ice as a viscous layer (Keller, 1998). In the image, obtained in April 2000, the structure of the wave spectrum in the MIZ and its change from the open-water spectrum are consistent with a pancake layer thickness of 0.2-0.3 m. Intensive in situ measurements of the pancake ice in the MIZ some 280 km W of the image location were made from FS Polarstern during a period covering the satellite imaging, and yielded a mean ice thickness of 0.24 m. We conclude that this technique is giving realistic results for ice thickness, whereas earlier work based on a different dispersion theory (mass loading) tended to over-estimate thickness. After further validation, it is therefore possible that the SAR wave technique can become an accepted method for remotely sensing ice thickness in pancake icefields. (literal)
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