Spinup before simulation loop

[dschlaep]

Implement spin-up capabilities

• before the simulation loops over years and days
• run a “spin-up” (without producing “outputs”) and pass resulting states (values of soil moisture, soil temperature, etc.) into the simulation loop
• Inputs to the “spin-up” consist of a subset of inputs for the simulation; the subset is determined by new user inputs
  • spin-up scope: use first n year(s) of simulation inputs
  • spin-up duration: sample m year(s) out of the first n year(s)
  • spin-up mode
  • randomly sample m out of the first n years
    • “repeated random resample”
  • use a sequence of m years out of the first n years, i.e., 1:m if m <= n else {1:n, 1:n, …}_m
  • “repeated sequence subset”
  • rng seed (0 means use current time, i.e., no replicable)
• defaults (backwards compatible, i.e., no spin-up): scope n = 1, duration m = 0, mode = “repeated random resample”, seed = 11