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ARIS_lite

ARIS models plant growth based on environmental parameter. The model draws on the references at the bottom.

🌱 state

The model has been validated against the orignal ARIS model. This is not a stable software - future changes may break your work, but I will try not to.

🪛 usage

  1. python water_budget.py -m snow 2019 2020 2021 2022 2023
  2. python phenology.py
  3. python water_budget.py -m soil
  4. python yield_expectation.py

✨ features

  • calculate water up-take coefficients ("Kc factors") for Winter Wheat, Spring Barley, Maize, and Grassland based on the daily air surface temperature
  • calculate soil water content and evapotranspiration
  • compute daily crop-specific stress index based on maximum surface air temperature and soil water saturation
  • estimate yield expectations based on stress index

📑 API documentation

https://aris-lite.readthedocs.io

🔗 dependencies

  • dask, numpy, pandas, snowmaus, xarray, zarr
  • meteorological data
  • soil water capacity data

🐛 known issues

  • hard-coded observable names, e.g. "max_air_temp"

💸 funding

The implementation of ARIS_lite in Python, this repository, is funded by the Austrian Research Promotion Agency (FFG, www.ffg.at) as part of CropShift.

Logo FFG

📚 references

[1] Allen, R. G. (Ed.). (2000). Crop evapotranspiration: Guidelines for computing crop water requirements (repr). Food and Agriculture Organization of the United Nations.
[2] Eitzinger, J., Daneu, V., Kubu, G., Thaler, S., Trnka, M., Schaumberger, A., Schneider, S., & Tran, T. M. A. (2024). Grid based monitoring and forecasting system of cropping conditions and risks by agrometeorological indicators in Austria – Agricultural Risk Information System ARIS. Climate Services, 34, 1. https://doi.org/10.1016/j.cliser.2024.100478.
[3] Schaumberger, A. (2011). Räumliche Modelle zur Vegetations- und Ertragsdynamik im Wirtschaftsgrünland [Dissertation, Graz University of Technology]. https://repository.tugraz.at/publications/npc97-y3058.