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Geoscientific Model Development An interactive open-access journal of the European Geosciences Union
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Discussion papers
https://doi.org/10.5194/gmd-2018-5
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-2018-5
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Submitted as: methods for assessment of models 14 Mar 2018

Submitted as: methods for assessment of models | 14 Mar 2018

Review status
This discussion paper is a preprint. It has been under review for the journal Geoscientific Model Development (GMD). The revised manuscript was not accepted.

A new tool for model assessment in the frequency domain – Spectral Taylor Diagram : application to a global ocean general circulation model with tides

Mabel Costa Calim1, Paulo Nobre1, Peter Oke2, Andreas Schiller2, Leo San Pedro Siqueira3, and Guilherme Pimenta Castelão4 Mabel Costa Calim et al.
  • 1National Institute for Space Research, Cachoeira Paulista, SP 16300-000, Brazil
  • 2CSIRO - Oceans and Atmosphere, Centre for Australian Weather and Climate Research, G.P.O. Box 1538, Hobart TAS 7001, Australia
  • 3Rosenstiel School of Marine and Atmospheric Science, University of Miami, 4600 Rickenbacker Causeway, Miami, FL 33149-1098, USA
  • 4Scripps Institution of Oceanography 9500 Gilman Drive, La Jolla, California 92093

Abstract. We introduce a new tool – the Spectral Taylor Diagram (STD) – for the comparison of time series in the frequency domain. The STD provides a novel way of displaying the squared-coherence, power, amplitude, phase, and root-mean-squared difference of discrete frequencies of two time-series. Each STD summarises these quantities in a single plot, for multiple targeted frequencies. The versatility of STDs is demonstrated through a series of sea-level comparisons between observations from tide gauges, and model results from a global eddy-permitting ocean general circulation model with explicit tidal forcing.

Mabel Costa Calim et al.
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AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement
Interactive discussion
Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement
Mabel Costa Calim et al.
Mabel Costa Calim et al.
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Short summary
A new tool inspired on tides is introduced. The Spectral Taylor Diagram designed for evaluating and monitoring models performance in frequency domain calculates the degree of correspondence between simulated and observed fields for a given frequency (or a band of frequencies). It's a powerful tool to detect co-oscillating patterns in multi scale analysis, without using filtering techniques.
A new tool inspired on tides is introduced. The Spectral Taylor Diagram designed for evaluating...
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