DOY

• Label: Day of Year
• Definition:
• Type: Nominal
• Missing values: None specified

,
hr

• Label: Hour
• Definition: The hour of the day the sample was taken.
• Type: Nominal
• Missing values: None specified

,
min

• Label: Minute
• Definition: The minute of the hour that the sample was taken.
• Type: Nominal
• Missing values: None specified

,
Site

• Label: Site
• Definition: Site in my data means either AAS, FAS, AOS, or FOS. These sites labels used to identify soil pits and are described in the documentation for the data.
• Type: Nominal
• Missing values: None specified

,
Cs

• Label: CO2 content of the soil
• Definition: Cs is measured in PPM
• Type: Nominal
• Missing values: None specified

,
k

• Label: Soil diffusion parameter
• Definition: k is a derived parameter of soil CO2 efflux. It is derived through a MATLAB nonlinear curve fitting algorithm.
• Type: Nominal
• Missing values: None specified

,
efflux

• Label: Soil CO2 Efflux
• Definition: Efflux in my data is a derived variable using a MATLAB nonlinear curve fitting algorithm. It is defined as mmol of CO2 released per square meter of soil per second (mmol/m2*s).
• Type: Physical quantity
• Unit: mmol/m2*s
• Maximum: Not specified
• Minimum: Not specified
• Precision: Not specified
• Missing values: None specified

,
yes/no

• Label: QA/QC Result
• Definition: yes/no in my data is the result of my quality analysis / quality control (QAQC)procedure and can take values of either 0, 0.5, or 1. 1 means the data point is good; either 0 or 0.5 mean the data point does not meet minimum standards for QAQC.
• Type: Nominal
• Missing values: None specified