Articles | Volume 13, issue 6
Methods for assessment of models
19 Jun 2020
Methods for assessment of models |  | 19 Jun 2020

Three-dimensional normal mode functions: open-access tools for their computation in isobaric coordinates (p-3DNMF.v1)

Carlos A. F. Marques, Martinho Marta-Almeida, and José M. Castanheira

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Cited articles

Blaauw, M. and Žagar, N.: Multivariate analysis of Kelvin wave seasonal variability in ECMWF L91 analyses, Atmos. Chem. Phys., 18, 8313–8330,, 2018. a
Castanheira, J. M. and Marques, C. A. F.: Convectively Coupled Equatorial Waves Diagnosis using 3–D Normal Modes, Q. J. Roy. Meteor. Soc., 141, 2776–2792,, 2015. a, b, c
Castanheira, J. M. and Marques, C. A. F.: The energy cascade associated with daily variability of the North Atlantic Oscillation, Q. J. Roy. Meteor. Soc., 145, 197–210,, 2019. a, b, c, d, e, f
Castanheira, J. M., DaCamara, C. C., and Rocha, A.: Numerical solutions of the vertical structure equation and associated energetics, Tellus, 51A, 337–348, 1999. a, b
Castanheira, J. M., Graf, H.-F., DaCamara, C. C., and Rocha, A.: Using a Physical Reference Frame to Study Global Circulation Variability, J. Atmos. Sci., 59, 1490–1501,<1490:UAPRFT>2.0.CO;2, 2002. a
Short summary
A free software package for the computation of the 3-D normal modes of an hydrostatic atmosphere is presented. This software performs the computations in isobaric coordinates and was developed for two user-friendly languages: MATLAB and Python. The software can be used to expand the global atmospheric circulation onto the 3-D normal modes.