| 87 | | The '''ESMF''' [[span(style=color: #FF0000, '''!RunSequence''')]] configuration file sets how the '''ESM''' components are connected and coupled. All the components interact with the same or different coupling time step. Usually, the connector from '''ROMS''' to '''ATM''' is explicit, whereas the connector from '''ATM''' to '''ROMS''' is semi-implicit. Often, the timestep of the atmosphere kernel is smaller than that for the ocean. Therefore, it |
| | 87 | The '''ESMF''' [[span(style=color: #FF0000, '''!RunSequence''')]] configuration file sets how the '''ESM''' components are connected and coupled. All the components interact with the same or different coupling time step. Usually, the connector from '''ROMS''' to '''ATM''' is explicit, whereas the connector from '''ATM''' to '''ROMS''' is semi-implicit. Often, the timestep of the atmosphere kernel is smaller than that for the ocean. Therefore, it is advantageous for the '''ATM''' model to export time-averaged fields over the coupling interval, which is the same as the '''ROMS''' timestep. It is semi-implicit because '''ROMS''' right-hand-side terms are forced with n+1/2 '''ATM''' fields because of the time-averaging. The following diagram shows the explicit and semi-implicit coupling for a '''DATA'''-'''ATM'''-'''ROMS''' system: |
