The temperature and sea-level graphs enable the user to view on-screen the calculated global-mean temperature and sea-level changes for the chosen emissions scenarios and the selected model parameter settings. The default period shown is from 1990 to 2100, but two other pre-defined periods may also be selected: 1765-1990 (i.e., the historical period) and 1765-2100 (i.e., the full period over which MAGICC operates under default settings). It is also possible for the user to define their own period for viewing. Locate the mouse in the year selection boxes and enter the required years. For example, if the chosen Emissions Scenario contains emissions to the year 2200 and the Last year for climate model run was set to 2200 in the Output years sub-menu, then you may also wish to view concentrations to the year 2200.
The graphs initially display only the curves for the Reference best guess
case. Additional curves can be added or removed by selectively turning them
on or off using the buttons on the left hand side of the plotting area. In
addition to displaying Reference (Ref) and Policy (Pol) scenarios
and default (best) and user model (user) calculations, MAGICC
also calculates temperature and sea-level uncertainties assuming low and
high values for the climate sensitivity (which affects both global-mean temperature
and oceanic thermal expansion) and low and high values for the various non-expansion
components of sea level rise.
If you wish to produce a hard copy plot of any graph the Print button
will generate a print of your screen directly on an attached printer. Note
that this direct print option will not work with all printers. The EPS
file button (used to produce an encapsulated postscript (EPS) file in
earlier versions of MAGICC/SCENGEN) is not working in the current version.
A further alternative is to use the Windows Alt-Prnt Scrn facility to port the graphics window to a Word document.
When you have finished viewing these graphs select OK to return to the main menu.