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WDM6 SBUYLIN

Lake Effect Period Total

Precip

Why is Graupel so different?

The calculation?Answer within variables in the scheme.

The relationship chosen?Answer may be in the literature or code.No aha moment yet…

Is the species affecting distribution and amount of precip?

Fall velocities are variables within the scheme.

My Goal

• Visualize Microphysics source/sink terms

qsten(k) = qsten(k) + (prs_iau(k) + prs_sde(k) & + prs_sci(k) + prs_scw(k) + prs_rcs(k) & + prs_ide(k) - prs_ihm(k) - prr_sml(k)) & * orho

Where are Microphysics?WRFV3/…drwxr-xr-x 2 u0758091 steenbur 8192 Feb 1 10:34 dyn_emdrwxr-xr-x 2 u0758091 steenbur 20480 Feb 1 10:32 physdrwxr-xr-x 2 u0758091 steenbur 4096 Feb 1 10:23 Registry….

In module_mp_thompson.F:qsten(k) = qsten(k) + (prs_iau(k) + prs_sde(k) & + prs_sci(k) + prs_scw(k) + prs_rcs(k) & + prs_ide(k) - prs_ihm(k) - prr_sml(k)) & * orho

Heirarchy

solve_em.F {grid/domain operations}solve_em calls microphysics_driver

module_microphysics_driver.Fmicrophysics_driver calls mp_gt_driver

module_mp_thompson.F mp_gt_driver calls mp_thompson {prs_iau locally defined}

Registry• In the Registry folder is a file called Registry.EM_COMMON

– Variables are declared there (memory and grid)

<Table><Type><Sym><Dims><Use><NumTLev><Stagger><IO><DNAME><DESCRIP><UNITS>

My Variable <Table><Type><Sym><Dims><Use><NumTLev><Stagger><IO><DNAME><DESCRIP><UNITS>state real iausn ikj dyn_em - - h "Ice Auto Snow" "Ice autoconverted to snow" "kg kg-1"

Exploit existing code

Calls declarations and assignments all the way through the hierarchy

After the subroutine prs_iau is created in is called!do k = kts, kte {EXISTING CODE}

iausn(i,k,j) = prs_iau(k)… {EXISTING CODE}enddo {EXISTING CODE}

Simple right?

Scheme variable is local and 1 D?DOUBLE PRECISION, DIMENSION(kts:kte):: prs_iau

• Registry variables are all REAL, and I want 3D non-local (dummy) variable ala:

REAL,DIMENSION(ims:ime,kms:kme,jms:jme),INTENT(INOUT):: iausn

After Editing

• ./clean -a– mv configure.wrf.backup configure.wrf

• ./configure• ./compile >& compile.txt

Victory

Important

• Variable characteristics• Every subroutine connection to grid• Where edits are made in the code• Indices• Easy to blindly correct compiler errors to get a

clean compile– Keep and eye on the big picture