1,1,1 out1,out2,out3 259.13440 236.01870 209.75790 207.86090 207.31050 221.03530 233.33480 243.99810 253.30600 261.44590 temperatures for 18 layers and surface 268.55370 274.71560 279.98590 284.40550 287.99090 290.73930 292.62710 293.60710 293.73510 .318,23.00,5.00 ozone parameters for timetm3 4800 tm3 500,60.0,1.0,.0001,2000 So/2,zen. angle,step size,low,run length 6.5,2.5 critical lapse rate, ocean depth 320,640,2000 Carbon Dioxide conc (ppmv) C20,C21,tm2 1.6,3.2,2400 Methane conc (ppmv) C40, C41, tm4 .30,.45,3600 Nitrous Oxide conc (ppmv) N20, N21, tm1 275.0 F-11 conc (pptv) 468.0 F-12 conc (pptv) 0,11 Ac, Cloud layer .10,8.5 surface albedo, cloud optical depth 0 Initial time (usually 0) 0 # of step between output 12000 after this time the water vapor content of the atmosphere is held fixed Notes: *out1,out2,out3 determine if output files 'out1', 'out2', 'out3' are generated see list of output files *aoz,boz,coz are used in the equation below (see Lacis and Hansen 1974) to calculate the total ozone amount above level z(i) (units are cm-STP) uo(i)=(aoz+aoz*exp(-boz/coz))/(1+exp((z(i)-boz)/coz)) * after the time reaches tm3 the parameters change to the values of a1z,b1z,c1z * Step size of 2.0 days max for good results. Larger step sizes can be used but the user should explore the consequences before trusting the results too much. * When you get this file the runlength will be set to zero. We suggest that you try a 100 day run to see how long it takes on your machine. * If the critical lapse rate is less than 0.0 the program uses the moist adiabatic lapse rate as the critical lapse rate * for carbon dioxide, methane, and nitrous oxide: the initial concentration of the gas is given, followed by the new concetration. The third number is the time in days at which the concentration of the gas makes the stepwise change from the initial concentration to the new concentration. For example, to calculated the change in surface due to doubling of co2 use 320,640,1200 an ocean mixed layer depth of 2.5 m and a runlength of 2400 days. After 1200 days equilibrium will be reached with [co2]=320 and then [co2] will change to 640 ppmv at 1200days and a new equilibrium will be achieved by 2400 days.