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using Oceananigans | ||
using Oceananigans.ImmersedBoundaries: mask_immersed_field! | ||
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using GLMakie | ||
using Printf | ||
using ClimaOcean | ||
using ClimaOcean.DataWrangling.ECCO: ECCO_field, ECCOFieldTimeSeries | ||
using CFTime | ||
using Dates | ||
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arch = CPU() | ||
Nx = 360 ÷ 4 | ||
Ny = 160 ÷ 4 | ||
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z = ClimaOcean.DataWrangling.ECCO.ECCO_z | ||
z = z[20:end] | ||
Nz = length(z) - 1 | ||
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grid = LatitudeLongitudeGrid(arch; z, | ||
size = (Nx, Ny, Nz), | ||
latitude = (-80, 80), | ||
longitude = (0, 360)) | ||
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bottom_height = regrid_bathymetry(grid; | ||
minimum_depth = 10, | ||
interpolation_passes = 5, | ||
major_basins = 1) | ||
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grid = ImmersedBoundaryGrid(grid, GridFittedBottom(bottom_height)) | ||
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T = CenterField(grid) | ||
S = CenterField(grid) | ||
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using SeawaterPolynomials: TEOS10EquationOfState | ||
using Oceananigans.BuoyancyModels: buoyancy | ||
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equation_of_state = TEOS10EquationOfState() | ||
sb = SeawaterBuoyancy(; equation_of_state) | ||
tracers = (T=T, S=S) | ||
b = Field(buoyancy(sb, grid, tracers)) | ||
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start = DateTimeProlepticGregorian(1993, 1, 1) | ||
stop = DateTimeProlepticGregorian(1999, 1, 1) | ||
dates = range(start; stop, step=Month(1)) | ||
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Tmeta = ECCOMetadata(:temperature; dates) | ||
Smeta = ECCOMetadata(:salinity; dates) | ||
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Tt = ECCOFieldTimeSeries(Tmeta, grid; time_indices_in_memory=length(dates)) | ||
St = ECCOFieldTimeSeries(Smeta, grid; time_indices_in_memory=length(dates)) | ||
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fig = Figure(size=(900, 1050)) | ||
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axT = Axis(fig[1, 1]) | ||
axS = Axis(fig[2, 1]) | ||
axb = Axis(fig[3, 1]) | ||
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Nt = length(dates) | ||
grid = T.grid | ||
Nz = size(grid, 3) | ||
kslider = Slider(fig[1:3, 0], range=1:Nz, startvalue=Nz, horizontal=false) | ||
nslider = Slider(fig[4, 1:2], range=1:Nt, startvalue=1) | ||
k = kslider.value | ||
n = nslider.value | ||
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Tk = @lift view(Tt[$n], :, :, $k) | ||
Sk = @lift view(St[$n], :, :, $k) | ||
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Δb = @lift begin | ||
parent(T) .= parent(Tt[$n]) | ||
parent(S) .= parent(St[$n]) | ||
compute!(b) | ||
mask_immersed_field!(b, NaN) | ||
Δb = interior(b, :, :, Nz) .- interior(b, :, :, $k) | ||
Δb | ||
end | ||
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hmT = heatmap!(axT, Tk, nan_color=:lightgray, colorrange=(-2, 30), colormap=:thermal) | ||
hmS = heatmap!(axS, Sk, nan_color=:lightgray, colorrange=(31, 37), colormap=:haline) | ||
hmb = heatmap!(axb, Δb, nan_color=:lightgray, colorrange=(0, 1e-3), colormap=:magma) | ||
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Colorbar(fig[1, 2], hmT, label="Temperature (ᵒC)") | ||
Colorbar(fig[2, 2], hmS, label="Salinity (g kg⁻¹)") | ||
Colorbar(fig[3, 2], hmb, label="Buoyancy difference (m s⁻²)") | ||
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display(fig) | ||
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using ClimaOcean | ||
using ClimaOcean.Diagnostics: MixedLayerDepthField | ||
using ClimaOcean.DataWrangling.ECCO: ECCO_field, ECCOFieldTimeSeries | ||
using Oceananigans | ||
using GLMakie | ||
using Printf | ||
using CFTime | ||
using Dates | ||
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using SeawaterPolynomials: TEOS10EquationOfState | ||
using Oceananigans.BuoyancyFormulations: buoyancy | ||
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arch = CPU() | ||
Nx = 360 ÷ 1 | ||
Ny = 160 ÷ 1 | ||
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z = ClimaOcean.DataWrangling.ECCO.ECCO_z | ||
z = z[20:end] | ||
Nz = length(z) - 1 | ||
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grid = LatitudeLongitudeGrid(arch; z, | ||
size = (Nx, Ny, Nz), | ||
latitude = (-80, 80), | ||
longitude = (0, 360)) | ||
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bottom_height = regrid_bathymetry(grid; | ||
minimum_depth = 10, | ||
interpolation_passes = 5, | ||
major_basins = 1) | ||
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grid = ImmersedBoundaryGrid(grid, GridFittedBottom(bottom_height)) | ||
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start = DateTimeProlepticGregorian(1993, 1, 1) | ||
stop = DateTimeProlepticGregorian(2003, 1, 1) | ||
dates = range(start; stop, step=Month(1)) | ||
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Tmeta = ECCOMetadata(:temperature; dates) | ||
Smeta = ECCOMetadata(:salinity; dates) | ||
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Tt = ECCOFieldTimeSeries(Tmeta, grid; time_indices_in_memory=2) | ||
St = ECCOFieldTimeSeries(Smeta, grid; time_indices_in_memory=2) | ||
ht = FieldTimeSeries{Center, Center, Nothing}(grid, Tt.times) | ||
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equation_of_state = TEOS10EquationOfState() | ||
sb = SeawaterBuoyancy(; equation_of_state) | ||
tracers = (T=Tt[1], S=St[1]) | ||
h = MixedLayerDepthField(sb, grid, tracers) | ||
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Nt = length(ht) | ||
for n = 1:Nt-1 | ||
local tracers | ||
tracers = (T=Tt[n], S=St[n]) | ||
h.operand.buoyancy_perturbation = buoyancy(sb, grid, tracers) | ||
@show n | ||
@time compute!(h) | ||
parent(ht[n]) .= parent(h) | ||
end | ||
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function titlestr(n) | ||
d = dates[n] | ||
yr = year(d) | ||
mn = monthname(d) | ||
return string("ECCO mixed layer depth on ", mn, " ", yr) | ||
end | ||
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fig = Figure(size=(1500, 800)) | ||
axh = Axis(fig[2, 1], xlabel="Longitude", ylabel="Latitude") | ||
n = Observable(1) | ||
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str = @lift titlestr($n) | ||
Label(fig[1, 1], str, tellwidth=false) | ||
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hn = @lift ht[$n] | ||
hm = heatmap!(axh, hn, colorrange=(0, 500), colormap=:magma, nan_color=:lightgray) | ||
Colorbar(fig[2, 2], hm, label="Mixed layer depth (m)") | ||
display(fig) | ||
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record(fig, "ecco_mld.mp4", 1:Nt-1, framerate=4) do nn | ||
@info "Drawing frame $nn of $Nt..." | ||
n[] = nn | ||
end |
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experiments/three_degree_simulation/three_degree_simulation.jl
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using ClimaOcean | ||
using OrthogonalSphericalShellGrids | ||
using Oceananigans | ||
using Oceananigans.Units | ||
using CFTime | ||
using Dates | ||
using Printf | ||
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arch = CPU() | ||
Nx = 120 | ||
Ny = 60 | ||
Nz = 50 | ||
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z_faces = exponential_z_faces(; Nz, depth=6000, h=34) | ||
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underlying_grid = TripolarGrid(arch; size=(Nx, Ny, Nz), z=z_faces) | ||
bottom_height = regrid_bathymetry(underlying_grid) | ||
grid = ImmersedBoundaryGrid(underlying_grid, GridFittedBottom(bottom_height)) | ||
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gm = Oceananigans.TurbulenceClosures.IsopycnalSkewSymmetricDiffusivity(κ_skew=4000, κ_symmetric=4000) | ||
catke = ClimaOcean.OceanSimulations.default_ocean_closure() | ||
viscous_closure = Oceananigans.TurbulenceClosures.HorizontalScalarDiffusivity(ν=4000) | ||
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dates = DateTimeProlepticGregorian(1993, 1, 1) : Month(1) : DateTimeProlepticGregorian(1993, 12, 1) | ||
temperature = ECCOMetadata(:temperature, dates, ECCO4Monthly()) | ||
salinity = ECCOMetadata(:salinity, dates, ECCO4Monthly()) | ||
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restoring_rate = 1/2days | ||
mask = LinearlyTaperedPolarMask(southern=(-80, -70), northern=(70, 90)) | ||
FT = ECCORestoring(temperature, grid; mask, rate=restoring_rate) | ||
FS = ECCORestoring(salinity, grid; mask, rate=restoring_rate) | ||
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ocean = ocean_simulation(grid; | ||
momentum_advection = VectorInvariant(), | ||
tracer_advection = Centered(order=2), | ||
closure = (gm, catke, viscous_closure), | ||
forcing = (T=FT, S=FT), | ||
tracers = (:T, :S, :e)) | ||
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set!(ocean.model, T=ECCOMetadata(:temperature; dates=first(dates)), | ||
S=ECCOMetadata(:salinity; dates=first(dates))) | ||
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radiation = Radiation(arch) | ||
atmosphere = JRA55PrescribedAtmosphere(arch; backend=JRA55NetCDFBackend(20)) | ||
coupled_model = OceanSeaIceModel(ocean; atmosphere, radiation) | ||
simulation = Simulation(coupled_model; Δt=20minutes, stop_time=30days) | ||
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wall_time = Ref(time_ns()) | ||
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function progress(sim) | ||
ocean = sim.model.ocean | ||
u, v, w = ocean.model.velocities | ||
T = ocean.model.tracers.T | ||
Tmax = maximum(interior(T)) | ||
Tmin = minimum(interior(T)) | ||
umax = (maximum(abs, interior(u)), maximum(abs, interior(v)), maximum(abs, interior(w))) | ||
step_time = 1e-9 * (time_ns() - wall_time[]) | ||
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@info @sprintf("Time: %s, n: %d, Δt: %s, max|u|: (%.2e, %.2e, %.2e) m s⁻¹, \ | ||
extrema(T): (%.2f, %.2f) ᵒC, wall time: %s \n", | ||
prettytime(sim), iteration(sim), prettytime(sim.Δt), | ||
umax..., Tmax, Tmin, prettytime(step_time)) | ||
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wall_time[] = time_ns() | ||
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return nothing | ||
end | ||
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add_callback!(simulation, progress, IterationInterval(10)) | ||
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run!(simulation) | ||
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using ClimaOcean | ||
using NCDatasets | ||
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cachepath = ClimaOcean.DataWrangling.JRA55.download_jra55_cache | ||
filename = "RYF.tas.1990_1991.nc" | ||
filepath = joinpath(cachepath, filename) | ||
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ds = Dataset(filepath) | ||
Nx, Ny, Nt = size(ds["tas"]) | ||
ds["tas"][1, 1, [Nt, 1]] | ||
close(ds) |
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