Summary of the Article:

### Atmospheric Coupling

The land model uses the current state of the atmosphere to force its calculations. This atmospheric state is provided by an atmospheric model in coupled mode or from an observed dataset in land-only mode.

The land model calculates surface energy, constituent, momentum, and radiative fluxes using the previous time step's snow and soil hydrologic states. It then updates the soil and snow hydrology based on these fluxes and passes the updated fields back to the atmosphere.

### Atmospheric Input to Land Model

The land model receives various atmospheric inputs, including wind, temperature, humidity, precipitation, radiation, and other parameters, as detailed in Table 2.2.4.

### Land Model Output to Atmospheric Model

The land model outputs several key fields to the atmospheric model, such as energy fluxes, momentum fluxes, albedos, and other relevant variables, as described in Table 2.2.5.

The summary covers the main points of the article, including the atmospheric coupling process, the inputs received by the land model from the atmosphere, and the outputs from the land model to the atmospheric model. The key details are concisely presented, following the guidelines provided in the prompt.