APPENDIX 4-C 



HOW TO USE THE SLAMM COMPUTER PROGRAM 



The IBM PC-executable code is SLAMM.COM, so the model is called by entering 

 "SLAMM" in response to the system prompt. The model responds with SIMULATION 

 OPTIONS, which provides defaults for the few parameters required by the model (Figure 4-C-l). 

 In order to change a parameter, the user types the first letter of the desired choice, and then 

 picks the appropriate first letter from among the choices provided. Because we want to use the 

 defaults, we type "C" to continue; "Q" is used to quit the model. The next screen provides 

 OUTPUT OPTIONS with defaults (Figure 4-C-2). We type "T" to change the time step for 

 plotting maps; then we enter "50" in order to increase the interval from 25 years (the default) to 

 50 years. (The model actually plots those years divisible by the specified number without a 

 remainder; so to plot only the year 2050 in addition to the initial and final years, which are 

 always plotted, the user types "2050.") We also type "P" to plot the input data on the screen so 

 that it can be edited. 



FIGURE 4-C-l 



OPTIONS AVAILABLE FOR SLAMM SIMULATIONS 



SIMULATION OPTIONS 



Initial year = 1975 



Last year = 2100 



Rate of sea level rise = High (2.166 m by 2100) 



Subsidence rate for region = 1.20 mm/yr 



Decrease sediment with engineering projects on rivers = TRUE 



Protect developed areas = TRUE 



Waves from the east 



Continue 



Quit 



FIGURE 4-C-2 



OPTIONS AVAILABLE FOR SLAMM OUTPUT 



OUTPUT OPTIONS 



Dump input data to printer = FALSE 



Plot input data on screen = FALSE 



Legend = FALSE 



Automatically print maps = TRUE 



Time step for plotting map = 25.0 



Summarize output = TRUE 



Continue 



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