Summary:

Adjustable Parameters and Physical Constants

The article discusses the adjustable parameters and physical constants used in the biogeophysical and biogeochemical parameterizations of the coupled modeling system.

Adjustable Parameters:
- Values of certain adjustable parameters have been obtained from the literature or calibrated based on comparisons with observations.
- These adjustable parameters are described in the text.

Physical Constants:
- Physical constants are generally shared by all components in the coupled modeling system.
- These constants are presented in Table 2.2.7, which includes values for various physical quantities such as Pi, acceleration of gravity, Stefan-Boltzmann constant, and others.
- The table also includes descriptions, names, values, and units for each physical constant.

The article highlights that some of the physical constants, such as thermal conductivity of water, ice, and air, are not shared by other components of the coupled modeling system.