Investigating sound speed profile assimilation: An experiment in the Philippine Sea

Cheng Chen, Bo Lei, Yuan Liang Ma, Rui Duan

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

In this paper, a single datum assimilation method is described for constructing the sound speed profile (SSP) in the ocean. Our method's key is assimilation radius, where various radii provide different SSPs. By means of the Bellhop acoustic model and acoustic data, we calculated the optimal SSP assimilation radius. Due to the lack of proper in-situ observations, an SSP inversion method is proposed. Inverted SSP compared to assimilated SSP indicates close correlation, showing that both methods yield reliable results. Historical data analysis indicates a stable correlation structure under certain conditions, implying the optimal assimilation radius would measure SSP effectively under similar conditions.

Original languageEnglish
Pages (from-to)135-140
Number of pages6
JournalOcean Engineering
Volume124
DOIs
StatePublished - 15 Sep 2016

Keywords

  • Assimilation radius
  • Correlation structure
  • Multipath arrival delay
  • Sound speed profile

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