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How to cite

Citations for the research tools, plausibility checks, soil classification keys, the Soil Colour Reader and the homeowner tools.

If a tool helped your work, please cite the tool and the published methods it implements. The method references are listed with each tool; they credit the people whose science the tool is built on.

All tools are version 1.0. Persistent identifiers (DOIs) will be added here as they are minted; until then, cite the web address.

Tools for researchers

Cite the collection:

or a single tool:

  • Flynn, T. (2026). Profile harmoniser. In: Tools for researchers: soil and environmental analysis in the browser, version 1.0 [software]. tools.html#spline
  • Flynn, T. (2026). Soil carbon stocks. In: Tools for researchers: soil and environmental analysis in the browser, version 1.0 [software]. tools.html#carbon
  • Flynn, T. (2026). Water retention: compare pedotransfer functions. In: Tools for researchers: soil and environmental analysis in the browser, version 1.0 [software]. tools.html#water
  • Flynn, T. (2026). van Genuchten curves. In: Tools for researchers: soil and environmental analysis in the browser, version 1.0 [software]. tools.html#vg
  • Flynn, T. (2026). Hydrologic soil group and runoff. In: Tools for researchers: soil and environmental analysis in the browser, version 1.0 [software]. tools.html#hsg
  • Flynn, T. (2026). Texture class. In: Tools for researchers: soil and environmental analysis in the browser, version 1.0 [software]. tools.html#texture
  • Flynn, T. (2026). Munsell soil colour. In: Tools for researchers: soil and environmental analysis in the browser, version 1.0 [software]. tools.html#munsell
  • Flynn, T. (2026). Sampling density. In: Tools for researchers: soil and environmental analysis in the browser, version 1.0 [software]. tools.html#sampling
  • Flynn, T. (2026). Variogram & kriging. In: Tools for researchers: soil and environmental analysis in the browser, version 1.0 [software]. tools.html#krige
  • Flynn, T. (2026). Model evaluation. In: Tools for researchers: soil and environmental analysis in the browser, version 1.0 [software]. tools.html#eval
  • Flynn, T. (2026). Soil temperature waves. In: Tools for researchers: soil and environmental analysis in the browser, version 1.0 [software]. tools.html#soiltemp
  • Flynn, T. (2026). Surface energy balance. In: Tools for researchers: soil and environmental analysis in the browser, version 1.0 [software]. tools.html#energy
  • Flynn, T. (2026). Evapotranspiration and crop water use. In: Tools for researchers: soil and environmental analysis in the browser, version 1.0 [software]. tools.html#et
  • Flynn, T. (2026). Frost depth. In: Tools for researchers: soil and environmental analysis in the browser, version 1.0 [software]. tools.html#frost
  • Flynn, T. (2026). Day length and solar radiation. In: Tools for researchers: soil and environmental analysis in the browser, version 1.0 [software]. tools.html#sun
  • Flynn, T. (2026). Pedodiversity. In: Tools for researchers: soil and environmental analysis in the browser, version 1.0 [software]. tools.html#pedodiv

Check a result

Each check also lists the method it is based on; please cite that as well.

Soil classification keys

Please also cite the classification itself: IUSS Working Group WRB (2022), World Reference Base for Soil Resources, 4th edition, International Union of Soil Sciences, Vienna; Santos, H.G. dos et al. (2018), Sistema Brasileiro de Classificação de Solos, 5th edition, Embrapa, Brasília; or Soil Classification Working Group (2018), Soil Classification: A Natural and Anthropogenic System for South Africa, ARC-Institute for Soil, Climate and Water, Pretoria.

Soil Colour Reader

Homeowner tools

Some of the homeowner calculators (areas and volumes of irregular shapes, roof catchment, drainage) are also useful in research and fieldwork. Cite the collection:

or a single tool:

For frost depth in research, the researcher version in Tools for researchers gives more control.

BibTeX

Show BibTeX entries 
@software{flynn2026tools,
  author  = {Flynn, Trevan},
  title   = {Tools for researchers: soil and environmental analysis in the browser},
  year    = {2026},
  version = {1.0},
  doi     = {10.5281/zenodo.23742278},
  url     = {https://rafikiardhi.earth/tools.html}
}

@software{flynn2026checks,
  author  = {Flynn, Trevan},
  title   = {Check a result: plausibility checks for soil and environmental results},
  year    = {2026},
  version = {1.0},
  doi     = {10.5281/zenodo.23736495},
  url     = {https://rafikiardhi.earth/checks.html}
}

@software{flynn2026wrb,
  author  = {Flynn, Trevan and Rasaei, Zahra},
  title   = {WRB 2022 soil key (English, Farsi and Kiswahili editions)},
  year    = {2026},
  version = {1.0},
  doi     = {10.5281/zenodo.23739387},
  url     = {https://rafikiardhi.earth/soil-keys.html#wrb}
}

@software{flynn2026sibcs,
  author  = {Flynn, Trevan},
  title   = {SiBCS soil key (English and Portuguese editions)},
  year    = {2026},
  version = {1.0},
  doi     = {10.5281/zenodo.23744444},
  url     = {https://rafikiardhi.earth/soil-keys.html#br}
}

@software{flynn2026sakey,
  author  = {Flynn, Trevan},
  title   = {South African soil classification key (2018)},
  year    = {2026},
  version = {1.0},
  doi     = {10.5281/zenodo.23738161},
  url     = {https://rafikiardhi.earth/soil-keys.html#sa}
}

@software{flynn2026colour,
  author  = {Flynn, Trevan and Swafo, Seome Michael},
  title   = {Soil Colour Reader: Munsell soil colour from a photo, with uncertainty},
  year    = {2026},
  version = {1.0},
  doi     = {10.5281/zenodo.23737366},
  url     = {https://rafikiardhi.earth/soil-colour.html}
}

@software{flynn2026homeowner,
  author  = {Flynn, Trevan},
  title   = {Homeowner tools: yard and garden calculators},
  year    = {2026},
  version = {1.0},
  doi     = {10.5281/zenodo.23741943},
  url     = {https://rafikiardhi.earth/homeowners.html}
}