On the complexity of the inversion of radar signatures of oceanic internal solitary waves into characteristics of the interior ocean

A. Rubino, P. Brandt, R. Romeiser, V. Vlasenko

Research output: Contribution to conferencePaper

Abstract

On August 22, 1997, a large-amplitude internal solitary wave was detected simultaneously by using in-situ and spaceborne synthetic aperture radar observations south of the Strait of Messina. The observed surface velocity field, together with wind speed and direction measured in-situ during the experiment, were inserted into a radar imaging model to calculate theoretical radar signatures. Good agreement was found between model results and observations. Several numerical simulations performed with the radar imaging model using different wind directions indicate that the simulated radar signatures depend strongly on this parameter which, in general, is not known accurately over the ocean. Inserting the measured undisturbed density stratification into an internal wave model, theoretical density and velocity fields associated with an internal solitary wave having the same amplitude as the observed one were calculated. Also in this case, good agreement was found between model results and observations. To study the dependence of the surface velocity field associated with an internal solitary wave on strength of the pycnocline and internal wave amplitude, several numerical simulations were performed with the internal wave model using three different density stratifications. The obtained model results can be seen as a measure of the complexity related to the inversion of sea surface manifestations of internal solitary waves into characteristics of the interior ocean.

Original languageEnglish (US)
Pages155-157
Number of pages3
StatePublished - Dec 1 1999
Externally publishedYes
EventProceedings of the 1999 IEEE International Geoscience and Remote Sensing Symposium (IGARSS'99) 'Remote Sensing of the Systems Earth - A Challenge for the 21st Century' - Hamburg, Ger
Duration: Jun 28 1999Jul 2 1999

Other

OtherProceedings of the 1999 IEEE International Geoscience and Remote Sensing Symposium (IGARSS'99) 'Remote Sensing of the Systems Earth - A Challenge for the 21st Century'
CityHamburg, Ger
Period6/28/997/2/99

ASJC Scopus subject areas

  • Computer Science Applications
  • Earth and Planetary Sciences(all)

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    Rubino, A., Brandt, P., Romeiser, R., & Vlasenko, V. (1999). On the complexity of the inversion of radar signatures of oceanic internal solitary waves into characteristics of the interior ocean. 155-157. Paper presented at Proceedings of the 1999 IEEE International Geoscience and Remote Sensing Symposium (IGARSS'99) 'Remote Sensing of the Systems Earth - A Challenge for the 21st Century', Hamburg, Ger, .