Citations and the h Index of Soil Researchers and Journals in the Web of Science, Scopus, and Google Scholar. Minasny, B., Hartemink, A. E., McBratney, A., & Jang, H. 1:e183+.
Citations and the h Index of Soil Researchers and Journals in the Web of Science, Scopus, and Google Scholar [link]Paper  doi  abstract   bibtex   
Citation metrics and h indices differ using different bibliometric databases. We compiled the number of publications, number of citations, h index and year since the first publication from 340 soil researchers from all over the world. On average, Google Scholar has the highest h index, number of publications and citations per researcher, and the Web of Science the lowest. The number of papers in Google Scholar is on average 2.3 times higher and the number of citations is 1.9 times higher compared to the data in the Web of Science. Scopus metrics are slightly higher than that of the Web of Science. The h index in Google Scholar is on average 1.4 times larger than Web of Science, and the h index in Scopus is on average 1.1 times larger than Web of Science. Over time, the metrics increase in all three databases but fastest in Google Scholar. The h index of an individual soil scientist is about 0.7 times the number of years since his/her first publication. There is a large difference between the number of citations, number of publications and the h index using the three databases. From this analysis it can be concluded that the choice of the database affects widely-used citation and evaluation metrics but that bibliometric transfer functions exist to relate the metrics from these three databases. We also investigated the relationship between journal's impact factor and Google Scholar's h5-index. The h5-index is a better measure of a journal's citation than the 2 or 5 year window impact factor.
@article{minasnyCitationsIndexSoil2013,
  title = {Citations and the h Index of Soil Researchers and Journals in the {{Web}} of {{Science}}, {{Scopus}}, and {{Google Scholar}}},
  author = {Minasny, Budiman and Hartemink, Alfred E. and McBratney, Alex and Jang, Ho-Jun},
  date = {2013-10},
  journaltitle = {PeerJ},
  volume = {1},
  pages = {e183+},
  issn = {2167-8359},
  doi = {10.7717/peerj.183},
  url = {https://doi.org/10.7717/peerj.183},
  abstract = {Citation metrics and h indices differ using different bibliometric databases. We compiled the number of publications, number of citations, h index and year since the first publication from 340 soil researchers from all over the world. On average, Google Scholar has the highest h index, number of publications and citations per researcher, and the Web of Science the lowest. The number of papers in Google Scholar is on average 2.3 times higher and the number of citations is 1.9 times higher compared to the data in the Web of Science. Scopus metrics are slightly higher than that of the Web of Science. The h index in Google Scholar is on average 1.4 times larger than Web of Science, and the h index in Scopus is on average 1.1 times larger than Web of Science. Over time, the metrics increase in all three databases but fastest in Google Scholar. The h index of an individual soil scientist is about 0.7 times the number of years since his/her first publication. There is a large difference between the number of citations, number of publications and the h index using the three databases. From this analysis it can be concluded that the choice of the database affects widely-used citation and evaluation metrics but that bibliometric transfer functions exist to relate the metrics from these three databases. We also investigated the relationship between journal's impact factor and Google Scholar's h5-index. The h5-index is a better measure of a journal's citation than the 2 or 5 year window impact factor.},
  keywords = {*imported-from-citeulike-INRMM,~INRMM-MiD:c-13406275,bibliometrics,citation-metrics,comparison,free-science-metrics,google-scholar,h-index,research-metrics,scopus,soil-resources,thomson-reuters}
}

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