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i-adopt / examples

This is a repository of I-ADOPT variables
https://i-adopt.github.io/examples/
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Soil hydraulic conductivity #8

Open mabablue opened 3 months ago

mabablue commented 3 months ago

PID of Variable: http://vocabs.lter-europe.net/EnvThes/30319

Variable Description: Soil hydraulic conductivity is a measure of the efficiency of bulk flow through soil, and defined as the flow rate per unit pressure driving force.

Property (label): flow rate per unit pressure

Object of Interest (label): water

Matrix (label): soil

Context Object(s) (label):

Constraint(s) (label) and which Entity it constraints:

Dimension Information:

Applicable Unit(s): cm day-1

Link to a Publication of the Variable or Method:

Link to Turtle File (ttl) in this Repository (optional):

mabablue commented 3 months ago

I am not sure about the property and the unit. I have seen cm/day but also kg s-1 MPa-1 m. I found this as well: The unit pressure driving force for soil hydraulic conductivity is typically expressed as the hydraulic gradient, which is dimensionless. Therefore, soil hydraulic conductivity is often measured in units of length per time, such as meters per second (m/s), centimeters per second (cm/s), or meters per day (m/day), indicating the rate of water flow per unit hydraulic gradient. Should the definition then also be aligned?