This model sends the following fields to the coupler (via message passing):
The SST data is obtained from the input SST dataset and linearly interpolated in time (and possibly spatially interpolated to the model domain grid). SST data is converted from degrees Celsius to degrees Kelvin before being sent to the coupler. Currently, the remaining fields are set to zero. The data ocean model must send these fields to the coupler due to the coupler/ocean interface requirement. The fields are set to zero because we must assume they might be used by the coupler (or perhaps another component model) and it would seem that zero values are reasonable in this context. The coupler has no way of knowing whether the components it is connected to are active models or data models.