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Running MM5 with the Noah LSM model

Before you can run MM5 with the Noah LSM model, you need to ensure that:

• You run TERRAIN with the correct settings
• You added SOIL TEMP / MOISTURE fields in the REGRID step

configure.user

ISOIL = 2 (Noah land-surface scheme)

IBLTYP = 4 or 5 (Eta M-Y or MRF)
         The Noah LSM model only works with one of these 2 PBL schemes

make clean
make

mm5.deck

Set ISTLYR & ISMLYR

These values represent the bottom of the input soil layers
These must be set to the levels you added in the REGRID step
 
Typical values will be:

• From AWIP data
  ISTLYR = 10,40,100,200,
  ISMLYR = 10,40,100,200,

• From AVN / NNRP data
  ISTLYR = 10,200,0,0,
  ISMLYR = 10,200,0,0,

• From ERA15 / ERA40 data
  ISTLYR = 7,28,100,255,
  ISMLYR = 7,28,100,255,

Set RDMAXALB & RDBRDALB

These values indicate the albedo values which should be used by the model

Setting both to false (default): use the albedo values in the landuse table (LANDUSE.TBL inside MM5/Run/ directory)

RDMAXALB=.TRUE.: use climate maximum snow albedo (must have added the ALMX_FILE field in REGRID)

RDBRDALB=.TRUE.: use monthly climate background albedo (must have added the ALxx_FILE fields in REGRID)