Forward mode This mode needs to know the projectile details
L: projectile diameter (m)
r_proj: projectile density (kg/m^3)
Vi: Projectile velocity (km/s)
theta: projectile impact angle (degrees) for Gault scaling law (flag2)
Solid_rock or not (1 or 0) for Gault scaling law (flag2)
Backward modeThis mode needs to know the crater details
Below is explanation from the Meloch Fortran code (not included because of copyright)
Three different estimates are presented, but the pi-scaling method is currently considered the best!
Impact conditions: argv[1]: enter the impact velocity in km/sec argv[2]: enter the impact angle in degrees
Target descriptors: argv[3]: enter the target density in kg/m^3 argv[4]: enter the acceleration of gravity in m/sec^2
argv[5]: enter the target type, (1-3): type 1 = liquid water type 2 = loose sand type 3 = competent rock or saturated soil argv[6]: enter the projectile density in kg/m^3
argv[7]: enter the type of computation desired (1 or 2): Mode 1, crater size Mode 2, projectile size
Mode 1: Estimate crater diameter from projectile size Mode 1 case: Projectile descriptors: argv[8]: enter the projectile diameter in m
Mode 2: Estimate crater size from crater diameter*/ Mode 2 case: Crater descriptor: argv[8]: enter the transient crater diameter in m (if the final, not the transient crater diameter is known, enter zero (0.0) here) argv[9]: [optional] enter the final crater diameter in m
Last changed: $Date$