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Table of Contents - The Atmospheric Studies Group at TRC

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Section 8: CALMET Model Files<br />

<strong>Table</strong> 8-3 (Continued)<br />

Sample CALMET Control File (CALMET.INP)<br />

Input <strong>Group</strong> 5<br />

Units: km<br />

Rel<strong>at</strong>ive weighting <strong>of</strong> the first<br />

guess field and observ<strong>at</strong>ions in the<br />

SURFACE layer (R1) No default ! R1 = 50. !<br />

(R1 is the distance from an Units: km<br />

observ<strong>at</strong>ional st<strong>at</strong>ion <strong>at</strong> which the<br />

observ<strong>at</strong>ion and first guess field are<br />

equally weighted)<br />

Rel<strong>at</strong>ive weighting <strong>of</strong> the first<br />

guess field and observ<strong>at</strong>ions in the<br />

layers ALOFT (R2) No default ! R2 = 50. !<br />

(R2 is applied in the upper layers Units: km<br />

in the same manner as R1 is used in<br />

the surface layer).<br />

Rel<strong>at</strong>ive weighting parameter <strong>of</strong> the<br />

prognostic wind field d<strong>at</strong>a (RPROG) No default ! RPROG = 54. !<br />

(Used only if IPROG = 1)<br />

Units: km<br />

------------------------<br />

Maximum acceptable divergence in the<br />

divergence minimiz<strong>at</strong>ion procedure<br />

(DIVLIM) Default: 5.E-6 ! DIVLIM= 5.0E-06 !<br />

Maximum number <strong>of</strong> iter<strong>at</strong>ions in the<br />

divergence min. procedure (NITER) Default: 50 ! NITER = 50 !<br />

Number <strong>of</strong> passes in the smoothing<br />

procedure (NSMTH(NZ))<br />

NOTE: NZ values must be entered<br />

Default: 2,(mxnz-1)*4 ! NSMTH =<br />

2 , 8 , 8 , 12 , 12 , 12 , 0 , 0 , 0 , 0 !<br />

Maximum number <strong>of</strong> st<strong>at</strong>ions used in<br />

each layer for the interpol<strong>at</strong>ion <strong>of</strong><br />

d<strong>at</strong>a to a grid point (NINTR2(NZ))<br />

NOTE: NZ values must be entered Default: 99. ! NINTR2 =<br />

99 , 99 , 99 , 99 , 99 , 99 , 0 , 0 , 0 , 0 !<br />

Critical Froude number (CRITFN) Default: 1.0 ! CRITFN = 1. !<br />

Empirical factor controlling the<br />

influence <strong>of</strong> kinem<strong>at</strong>ic effects<br />

(ALPHA) Default: 0.1 ! ALPHA = 0.1 !<br />

8-20

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