Research Article Open Access

Modelling the Effect of Salinity on the Multivariate Distribution of a Water Quality Index

Daniela cocchi and Michele scagliarini

Abstract

Salinity is a tracer of water and nutrient flows and is employed in studies on coastal environment to establish the coastal or remote origins of pollutants and nutrients. The present article analyses the effects of salinity on the multivariate distribution of the Trophic Index TRIX. The approach taken is based on a multivariate nested model with salinity as an explicative variable. We believe that our results are of use in discerning those areas of the North-West Adriatic Sea influenced by the Po River.

Journal of Mathematics and Statistics
Volume 1 No. 4, 2005, 277-281

DOI: https://doi.org/10.3844/jmssp.2005.277.281

Published On: 31 December 2005

How to Cite: cocchi, D. & scagliarini, M. (2005). Modelling the Effect of Salinity on the Multivariate Distribution of a Water Quality Index. Journal of Mathematics and Statistics, 1(4), 277-281. https://doi.org/10.3844/jmssp.2005.277.281

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Keywords

  • Multivariate normal distribution
  • trophic index
  • maximum likelihood estimation
  • variance-covariance structure
  • multivariate nested model