Error: Failed to load processor EdGCMToc

No macro or processor named 'EdGCMToc' found

Running Simulations

Once a simulation has been set up, getting a run started is quite simple: just click the Play icon at the top of the toolbar (see, e.g., Figure 3-1). At this point, a new window will open, displaying some information that may appear a bit arcane (Figure 3-6). This window is actually the GCM itself, running under Fortran and separate from the EdGCM 4D interface. The first time a simulation is run, the model goes through one simulated hour and then stops. This “first-hour check” is designed to make certain that the correct input files have been selected. If successful, the window displays a success message and stops.

To continue the run at this point, click on the play button at the bottom of the GCM window, or in the toolbar. The model will pick up where it left off (Figure 3-7) and then run to completion (If a simulation crashes, which is a possibility when testing extreme combinations of forcings, error messages will be displayed in this window).

The model may be paused or stopped at any point by clicking on the buttons at the bottom of the GCM window or in the toolbar. Hitting Pause suspends the run temporarily, whereas the Stop button will end the run and close the GCM window.

Other run controls that appear only in the toolbar (Figure 3- 1) resemble “rewind” and “fast forward” buttons. The Rewind button does not simply step backwards within a run, but instead erases all previous output generated by a run and restarts the simulation from the beginning.

The Fast Forward button comes into play if the user wants to extend a run that has already successfully completed. (Runs that have crashed cannot be encouraged to restart with this button!) A popup window will ask for a new end date; once the new date is entered, pressing the play button again will start the model.

Since the model runs independently of the EdGCM interface, EdGCM can be quit to free up resources for the model, and later restarted to analyze output.