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TUW-GEO / ismn

Readers for the data from the International Soil Moisture Network
https://ismn.earth/en/
MIT License
31 stars 21 forks source link

Regarding issues and suggestions about metadata. #80

Closed lizhuoq closed 2 months ago

lizhuoq commented 4 months ago

First of all, thank you for your dedication to this project, which has been very helpful to me. However, I am not clear about the units of continuous variables in the metadata, such as clay_fraction, organic_carbon, and sand_fraction. I cannot intuitively obtain the units of these variables. Could you please provide me with the units of these variables in the metadata? Similar to the issue I mentioned earlier, I believe it is crucial to intuitively obtain the units of different variables, and this needs to be addressed urgently.

Therefore, I have a suggestion to address this issue. It would be helpful to add a function def get_unit() -> dict[str, str], which would directly return all the variables related to ISMN along with their units. This information could be stored as a JSON file, and when users call get_unit(), it would return a dictionary directly. I suggest using LaTeX formatting for the units.

I hope to receive your response soon. Thank you.

wpreimes commented 4 months ago

They are all expressed as a percentage value (% weight). Sand / Clay / silt fraction should add up to 100% and are taken from the Harmonized World Soil Database. image

lizhuoq commented 4 months ago

@wpreimes Thank you for your response, it's really timely. Please forgive my lack of knowledge in soil texture.

wpreimes commented 4 months ago

No problem, please also see Table 2 in the following article https://doi.org/10.5194/hess-25-5749-2021

lizhuoq commented 4 months ago

@wpreimes Thank you for your nice reply, it's very helpful to me! Wish you all the best!