--- MITgcm/verification/MLAdjust/input.1.leith/data 2005/09/19 15:14:53 1.2 +++ MITgcm/verification/MLAdjust/input.1.leith/data 2005/09/27 14:35:30 1.3 @@ -4,28 +4,46 @@ # # Continuous equation parameters &PARM01 - viscAr=5.E-3, -# This is the minimum viscosity used total=viscah+viscleith -# Often U*deltaX/2 for grid noise (Griffies and Hallberg,2000) - viscAh=3.E1, + viscAr=5.E-5, +# This is the background viscosity used total=viscah+viscleith +# viscAh=1.E2, +# viscA4=1.E2, +# This is the background viscosity used on vorticity points +# viscAhZ=1.E2, +# viscA4Z=1.E2, +# This is the background viscosity used on divergence points +# viscAhD=1.E2, +# viscA4D=1.E2, +# viscAhd and viscahz are set to viscah if they are unset initially +# +# This is a maximum gridscale Reynolds number limiter +# ViscAhRemax=10, +# ViscA4Remax=10, +# This is a minimum autoscaling viscosity +# ViscAhGridMin=.01, +# ViscA4GridMin=.01, # This is the standard Leith Viscosity, prop to grad(curl v_h) - viscC2leith=5., +# viscC2leith=0.2, + viscC4leith=0.2, # This is an additional Leith Viscosity, prop to grad(div.v_h) # It traps instabilities that have no signal in grad(curl v_h) -# viscC2leithD=5., -# These are the minimum viscosities used with Smagorinsky -# total=viscastrain+viscsmag, etc. -# viscAstrain=3.E1, -# viscAtension=3.E1, +# viscC2leithD=0.2, + viscC4leithD=0.2, # This is harmonic Smagorinsky Coefficient -# 0.15=value from 3-d turbulence theory; -# 3-4=stable oceanic values (Griffies and Hallberg, 2000) -# viscC2Smag=4., +# 0.2-0.9=value from 3-d turbulence theory; Smagorinsky (1993) +# 2.2-4=stable oceanic values (Griffies and Hallberg, 2000) +# 0.7 c2smag is approximately the same as 0.12 c2leith+c2leithd +# 1.0 c2smag is approximately the same as 0.25 c2leith+c2leithd +# viscC2Smag=1.0, + viscC4Smag=1.0, # This is the max Viscosity used, be it Smag or Leith, and it scales # with grid size and timestep -# Often 0.5 for stability (Griffies and Hallberg,2000) - viscAhGridMax=0.5, +# viscAhGridMax=1.0, + viscA4GridMax=1.0, +# This uses the full grad(vort) and grad(div) useFullLeith=.TRUE., +# This uses the Strain-Tension form for calculating viscous terms +# useStrainTensionVisc=.TRUE., no_slip_sides=.FALSE., no_slip_bottom=.FALSE., ivdc_kappa=10., @@ -64,13 +82,16 @@ # Time stepping parameters &PARM03 niter0=36, - endTime=57600., +#endTime=86400., +#- for testing, only run for 12 iterations: + nTimeSteps=12, deltaT=1200., abEps=0.01, - pchkptFreq=7200., - taveFreq=7200., - dumpFreq=7200., - diagFreq=7200., +#- for testing, reduce amount of output by commenting out output frequencies: +# pchkptFreq=43200., +#taveFreq=7200., +#dumpFreq=7200., +#diagFreq=7200., monitorFreq=1200., cadjfreq=0., /