Code and Data: Analytic parameterization of longwave optical properties of bulk vegetation layer permitting non-zero leaf reflectivity and its implementation in CLM5

These source codes provide the means to calculate and analyze longwave optical properties for both the land surface and bulk vegetation layer. The analysis leads to the development of a new scheme, designed specifically for use in land surface models to derive optical properties. In addition, the CLM5 experiments with the new scheme impliemented are assessed.