StochasticStir.jl
Repository for the implementation of the stochastic stirring forcing and jet drag following Barnes and Hartmann, 2011 and Vallis et al. 2004 for SpeedyWeather.jl.
Background
See
- https://github.com/SpeedyWeather/SpeedyWeather.jl/issues/394
- Issue https://github.com/SpeedyWeather/StochasticStir.jl/issues/3
Installation
Via Julia's package manager (opened with ])
julia>]add https://github.com/SpeedyWeather/StochasticStir.jlor via using Pkg; Pkg.add("https://github.com/SpeedyWeather/StochasticStir.jl").
This package is not registered in Julia's general registry, so you have to specify
the whole URL as above. Requires SpeedyWeather.jl v0.8 or higher.
Usage
This package exports StochasticStirring and JetDrag. The respective terms can be added
to SpeedyWeather.jl's BarotropicModel or ShallowWaterModel as follows. Feel free to
raise an issue here for any related questions.
using SpeedyWeather
using StochasticStir
# model components
spectral_grid = SpectralGrid(trunc=42,nlev=1)
forcing = StochasticStirring(spectral_grid,latitude=45,strength=7e-11)
drag = JetDrag(spectral_grid,time_scale=Day(6))
initial_conditions = StartFromRest()
# construct the model and initialize
model = BarotropicModel(;spectral_grid,initial_conditions,forcing,drag)
simulation = initialize!(model)
# now run and store output
run!(simulation,period=Day(100),output=true)and you can get a list of options for JetDrag and StochasticStirring by typing
julia>?JetDrag
julia>?StochasticStirringwhere ? opens the help.
Gallery
A visualisation of the above simulation