CCPP SciDoc for UFS-SRW v3.0.0  SRW v3.0.0
Common Community Physics Package Developed at DTC
GFS Noah LSM Model

This is Noah LSM driver module, with the functionality of preparing variables to run Noah LSM gfssflx(), calling Noah LSM and post-processing variables for return to the parent model suite including unit conversion, as well as diagnotics calculation. More...

Modules

module  namelist_soilveg
 

Functions/Subroutines

subroutine, public lsm_noah::lsm_noah_run (im, km, grav, cp, hvap, rd, eps, epsm1, rvrdm1, ps, t1, q1, soiltyp, vegtype, sigmaf, sfcemis, dlwflx, dswsfc, delt, tg3, cm, ch, prsl1, prslki, zf, land, wind, slopetyp, shdmin, shdmax, snoalb, sfalb, flag_iter, flag_guess, lheatstrg, isot, ivegsrc, bexppert, xlaipert, vegfpert, pertvegf, albdvis_lnd, albdnir_lnd, albivis_lnd, albinir_lnd, adjvisbmd, adjnirbmd, adjvisdfd, adjnirdfd, rhonewsn1, exticeden, weasd, snwdph, tskin, tprcp, srflag, smc, stc, slc, canopy, trans, tsurf, zorl, sncovr1, qsurf, gflux, drain, evap, hflx, ep, runoff, cmm, chh, evbs, evcw, sbsno, snowc, stm, snohf, smcwlt2, smcref2, wet1, lai, rca, errmsg, errflg)
 
subroutine sflx::gfssflx (nsoil, couple, icein, ffrozp, dt, zlvl, sldpth, swdn, swnet, lwdn, sfcems, sfcprs, sfctmp, sfcspd, prcp, q2, q2sat, dqsdt2, th2, ivegsrc, vegtyp, soiltyp, slopetyp, shdmin, alb, snoalb, rhonewsn, exticeden, bexpp, xlaip, lheatstrg, tbot, cmc, t1, stc, smc, sh2o, sneqv, ch, cm, z0, nroot, shdfac, snowh, albedo, eta, sheat, ec, edir, et, ett, esnow, drip, dew, beta, etp, ssoil, flx1, flx2, flx3, runoff1, runoff2, runoff3, snomlt, sncovr, rc, pc, rsmin, xlai, rcs, rct, rcq, rcsoil, soilw, soilm, smcwlt, smcdry, smcref, smcmax, errmsg, errflg)
 This is the entity of GFS Noah LSM model of physics subroutines. It is a soil/veg/snowpack land-surface model to update soil moisture, soil ice, soil temperature, skin temperature, snowpack water content, snowdepth, and all terms of the surface energy balance and surface water balance (excluding input atmospheric forcings of downward radiation and precipitation). More...
 
subroutine alcalc
 This subroutine calculates albedo including snow effect (0 -> 1). More...
 
subroutine canres
 This subroutine calculates canopy resistance which depends on incoming solar radiation, air temperature, atmospheric water vapor pressure deficit at the lowest model level, and soil moisture (preferably unfrozen soil moisture rather than total). More...
 
subroutine csnow
 This subroutine calculates snow termal conductivity. More...
 
subroutine nopac
 This subroutine calculates soil moisture and heat flux values and update soil moisture content and soil heat content values for the case when no snow pack is present. More...
 
subroutine penman
 This subroutine calculates potential evaporation for the current point. various partial sums/products are also calculated and passed back to the calling routine for later use. More...
 
subroutine redprm (errmsg, errflg)
 This subroutine internally sets default values or optionally read-in via namelist i/o, all soil and vegetation parateters requied for the execusion of the Noah LSM. More...
 
subroutine sfcdif
 This subroutine calculates surface layer exchange coefficients via iterative process(see Chen et al.(1997) [39]). More...
 
subroutine snfrac
 This subroutine calculates snow fraction (0->1). More...
 
subroutine snopac
 This subroutine calculates soil moisture and heat flux values and update soil moisture content and soil heat content values for the case when a snow pack is present. More...
 
subroutine snow_new
 This subroutine calculates snow depth and densitity to account for the new snowfall. new values of snow depth & density returned. More...
 
subroutine snowz0
 This subroutine calculates total roughness length over snow. More...
 
subroutine tdfcnd (smc, qz, smcmax, sh2o, df)
 This subroutine calculates thermal diffusivity and conductivity of the soil for a given point and time. More...
 
subroutine evapo (nsoil, nroot, cmc, cmcmax, etp1, dt, zsoil, sh2o, smcmax, smcwlt, smcref, smcdry, pc, shdfac, cfactr, rtdis, fxexp, eta1, edir1, ec1, et1, ett1)
 This subroutine calculates soil moisture flux. The soil moisture content (smc - a per unit volume measurement) is a dependent variable that is updated with prognostic equations. The canopy moisture content (cmc) is also updated. Frozen ground version: new states added: sh2o, and frozen ground correction factor, frzfact and paramter slope. More...
 
subroutine shflx (nsoil, smc, smcmax, dt, yy, zz1, zsoil, zbot, psisat, bexp, df1, ice, quartz, csoil, vegtyp, shdfac, lheatstrg, stc, t1, tbot, sh2o, ssoil)
 This subroutine updates the temperature state of the soil column based on the thermal diffusion equation and update the frozen soil moisture content based on the temperature. More...
 
subroutine smflx (nsoil, dt, kdt, smcmax, smcwlt, cmcmax, prcp1, zsoil, slope, frzx, bexp, dksat, dwsat, shdfac, edir1, ec1, et1, cmc, sh2o, smc, runoff1, runoff2, runoff3, drip)
 This subroutine calculates soil moisture flux. The soil moisture content (smc - a per unit vulume measurement) is a dependent variable that is updated with prognostic equations. The canopy moisture content (cmc) is also updated. Frozen ground version: new states added: sh2o and frozen ground correction factor, frzx and parameter slope. More...
 
subroutine snowpack (esd, dtsec, tsnow, tsoil, snowh, sndens)
 This subroutine calculates compaction of a snowpack under conditions of increasing snow density, as obtained from an approximate solution of E. Anderson's differential equation (3.29),NOAA technical report NWS 19, by Victor Koren, 03/25/95. subroutine will return new values of snowh and sndens . More...
 
subroutine devap (etp1, smc, shdfac, smcmax, smcdry, fxexp, edir1)
 This subrtouine calculates direct soil evaporation. More...
 
subroutine frh2o (tkelv, smc, sh2o, smcmax, bexp, psis, liqwat)
 This subroutine calculates amount of supercooled liquid soil water content if temperature is below 273.15K (t0). It requires Newton-type iteration to solve the nonlinear implicit equation given in eqn 17 of Koren et al.(1999) [110]. More...
 
subroutine hrt (nsoil, stc, smc, smcmax, zsoil, yy, zz1, tbot, zbot, psisat, dt, bexp, df1, quartz, csoil, vegtyp, shdfac, lheatstrg, sh2o, rhsts, ai, bi, ci)
 This subroutine calculates the right hand side of the time tendency term of the soil thermal diffusion equation. Also to compute (prepare) the matrix coefficients for the tri-diagonal matrix of the implicit time scheme. More...
 
subroutine hrtice (nsoil, stc, zsoil, yy, zz1, df1, ice, tbot, rhsts, ai, bi, ci)
 This subroutine calculates the right hand side of the time tendency term of the soil thermal diffusion equation for sea-ice (ice = 1) or glacial-ice (ice). More...
 
subroutine hstep (nsoil, stcin, dt, rhsts, ai, bi, ci, stcout)
 This subroutine calculates/updates the soil temperature field. More...
 
subroutine rosr12 (nsoil, a, b, d, c, p, delta)
 This subroutine inverts (solve) the tri-diagonal matrix problem. More...
 
subroutine snksrc (nsoil, k, tavg, smc, smcmax, psisat, bexp, dt, qtot, zsoil, sh2o, tsrc)
 This subroutine calculates sink/source term of the termal diffusion equation. More...
 
subroutine srt (nsoil, edir, et, sh2o, sh2oa, pcpdrp, zsoil, dwsat, dksat, smcmax, bexp, dt, smcwlt, slope, kdt, frzx, sice, rhstt, runoff1, runoff2, ai, bi, ci)
 This subroutine calculates the right hand side of the time tendency term of the soil water diffusion equation. Also to compute (prepare) the matrix coefficients for the tri-diagonal matrix of the implicit time scheme. More...
 
subroutine sstep (nsoil, sh2oin, rhsct, dt, smcmax, cmcmax, zsoil, sice, cmc, rhstt, ai, bi, ci, sh2oout, runoff3, smc)
 This subroutine calculates/updates soil moisture content values and canopy moisture content values. More...
 
subroutine tbnd (tu, tb, zsoil, zbot, k, nsoil, tbnd1)
 This subroutine calculates temperature on the boundary of the layer by interpolation of the middle layer temperatures. More...
 
subroutine tmpavg (tup, tm, tdn, zsoil, nsoil, k, tavg)
 This subroutine calculates soil layer average temperature (tavg) in freezing/thawing layer using up, down, and middle layer temperature (tup, tdn, tm), where tup is at top boundary of layer, tdn is at bottom boundary of layer. tm is layer prognostic state temperature. More...
 
subroutine transp (nsoil, nroot, etp1, smc, smcwlt, smcref, cmc, cmcmax, zsoil, shdfac, pc, cfactr, rtdis, et1)
 This subroutine calculates transpiration for the veg class. More...
 
subroutine wdfcnd (smc, smcmax, bexp, dksat, dwsat, sicemax, wdf, wcnd)
 This subroutine calculates soil water diffusivity and soil hydraulic conductivity. More...
 
subroutine, public set_soilveg_mod::set_soilveg (me, isot, ivet, nlunit, errmsg, errflg)
 This subroutine initializes soil and vegetation. More...
 

Detailed Description

Argument Table

Noah LSM General Algorithm