Assimilation of sea-surface temperature into a hydrodynamic model of Port Phillip Bay, Australia

Matthew R.J. Turner, Jeffrey P. Walker, Peter R. Oke, Rodger B. Grayson

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

3 Citations (Scopus)

Abstract

Hydrodynamic models can predict states of interest to the coastal engineer, however, due to uncertainties in the model physics, model parameters, initial conditions, and model forcing data, large errors in prediction often result. To counter this, an ensemble sequential data assimilation scheme has been applied to the Model for Estuaries and Coastal Oceans (MECO), to constrain model predicted water temperature with remotely sensed sea-surface temperature observations. This paper describes a series of synthetic twin experiments mat contrast two ensemble sequential data assimilation schemes, the Ensemble Kalman Filter (EnKF) and the Ensemble Square Root Filter (EnSRF) in both one and three dimensional forms. The experiments show that the assimilation greatly improves the model prediction. The three dimensional form outperforms the one dimensional form, and that the EnSRF outperformed the EnKF significantly in the one dimensional form but only marginally in the three dimensional form.

Original languageEnglish
Title of host publication17th Australasian Coastal and Ocean Engineering Conference 2005 and the 10th Australasian Port and Harbour Conference 2005, COASTS and PORTS 2005
Pages511-516
Number of pages6
Publication statusPublished - 1 Dec 2005
Event17th Australasian Coastal and Ocean Engineering Conference 2005, COASTS 2005 and the 10th Australasian Port and Harbour Conference 2005, PORTS 2005 - Adelaide, Australia
Duration: 20 Sep 200523 Sep 2005

Publication series

Name17th Australasian Coastal and Ocean Engineering Conference 2005 and the 10th Australasian Port and Harbour Conference 2005, COASTS and PORTS 2005

Conference

Conference17th Australasian Coastal and Ocean Engineering Conference 2005, COASTS 2005 and the 10th Australasian Port and Harbour Conference 2005, PORTS 2005
CountryAustralia
CityAdelaide
Period20/09/0523/09/05

Cite this

Turner, M. R. J., Walker, J. P., Oke, P. R., & Grayson, R. B. (2005). Assimilation of sea-surface temperature into a hydrodynamic model of Port Phillip Bay, Australia. In 17th Australasian Coastal and Ocean Engineering Conference 2005 and the 10th Australasian Port and Harbour Conference 2005, COASTS and PORTS 2005 (pp. 511-516). (17th Australasian Coastal and Ocean Engineering Conference 2005 and the 10th Australasian Port and Harbour Conference 2005, COASTS and PORTS 2005).