Factors affecting the quality of XBT data - Results of analyses on profiles from the Western Mediterranean Sea

F. Reseghetti, M. Borghini, G.M.R. Manzella

Research output: Contribution to journalArticle

37 Citations (Scopus)


EXpendable BathyThermograph (XBT) temperature profiles collected in the framework of the Mediter-ranean Forecasting System - Toward Environmental Prediction (MFS-TEP) project have been compared with CTD measurements. New procedures for the quality control of recorded values have been developed and checked. Some sources of possible uncertainties and errors, such as the response time of the apparatus (XBT probe, thermistor and readout chain), or the influence of initial conditions are also analysed. To deal with the high homogeneity of Mediter-ranean waters, a new technique to compute the fall rate coefficients, that give a better reproduction of the depth of thermal structures, has been proposed, and new customized coefficients have been calculated. After the application of a temperature correction, the overall uncertainties in depth and in temperature measurements have been estimated.
Original languageEnglish
Pages (from-to)59 - 75
Number of pages17
JournalOcean Science
Issue number1
Publication statusPublished - 2007
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Oceanography
  • Palaeontology

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