References and citation hints

The following publications are closely related to the mjoindices software package. Please consider citing them in published research based on the descriptions given below.

Peer-reviewed

Hoffmann et al. (2021)

  • Scientific description of this software package to compute OMI including a validation against the originally calculated values.

  • Should always be cited when OMI values are calculated using this software package.

  • Reference: Hoffmann, C.G., Kiladis, G.N., Gehne, M. and von Savigny, C. (2021). A Python Package to Calculate the OLR-Based Index of the Madden- Julian-Oscillation (OMI) in Climate Science and Weather Forecasting. Journal of Open Research Software, 9(1), p.9. DOI: http://doi.org/10.5334/jors.331

Kiladis et al. (2014)

  • Initial paper of OMI, which contains the basic scientific description of the calculation approach.

  • Should always be cited when OMI values are used.

  • Reference: Kiladis, G.N., J. Dias, K.H. Straub, M.C. Wheeler, S.N. Tulich, K. Kikuchi, K.M. Weickmann, and M.J. Ventrice (2014): A Comparison of OLR and Circulation-Based Indices for Tracking the MJO. Mon. Wea. Rev., 142, 1697-1715, https://doi.org/10.1175/MWR-D-13-00301.1

Weidman et al. (2022)

  • Description of an alternative procedure for the EOF post-processing, which reduces noise and avoids potential degeneracy issues.

  • Should be cited when this particular post-processing option is used for the calculations.

  • Reference: Weidman, S., Kleiner, N., & Kuang, Z. (2022). A rotation procedure to improve seasonally varying empirical orthogonal function bases for MJO indices. Geophysical Research Letters, 49, e2022GL099998. https://doi.org/10.1029/2022GL099998

Others

Hoffmann (2020a)

  • Persistent storage of the package source code.

  • Can be cited to reference particularly the source code in “Code and Data” sections of papers (in addition to Hoffmann et al. (2021), which should at least be cited in the text).

  • Reference: Hoffmann, C.G. (2020). mjoindices. Zenodo. https://doi.org/10.5281/zenodo.3613752

Hoffmann et al. (2020b)

  • Persistent storage of the reference data for unit tests and validation.

  • Can be cited if this data is of particular importance for a publication, e.g., if an OMI advancement is validated in a paper.

  • Reference: Hoffmann, C.G., Kiladis, G.N., Gehne, M., Dias, J. and Smith, C. (2020). Reference dataset to check the Python package for the calculation of the OLR-based MJO index (OMI) (1.0) [Data set]. Zenodo. https://doi.org/10.5281/zenodo.3746563

Kiladis et al. (2020)

  • A correction to Kiladis et al. (2014) showing the correct values of the explained variance of the EOFs, which are also reproduced by the present software package. In fact, the mistake in Kiladis et al. (2014) was discovered during the development of this package in close collaboration with the authors.

  • Should be cited if the right values of explained variance of the EOFs are of particular interest.

  • Reference: Kiladis, G. N., Dias, J., Straub, K. H., Wheeler, M. C., Tulich, S. N., Kikuchi, K., Weickmann, K. M., and Ventrice, M. J. (2020). CORRIGENDUM, Monthly Weather Review, 148(2), 875-876, https://doi.org/10.1175/MWR-D-19-0385.1