Common Conditions

• 2-D Configuration
• Bell-Shape Mountain at the middle of the Domain Lower Boundary
• Horizontal Domain Size : 2000*dx (dx: horizontal grid increment)
• Height of the Domain Top : > 15 km (plus sponge layer if needed)
• Constant Horizontal Wind (10 m/s)
• Constant Brunt-Vaisala Freq.

Table of Conditions

Liner Waves

Ser.	a (m)	h (m)	l (m-1)	dx, dz (m)	T (min)		angle(deg)	a*l	h*l		Sample Fig
A1	5000	100	2*10-3	1000, 250	300		0.57	10	0.2		Fig. A1
A2	500	100	2*10-3	100, 100	100		5.7	1	0.2		Fig. A2
A3	100	100	2*10-3	20, 20	20		26.5	0.2	0.2		Fig. A3
A4	50	100	2*10-3	5, 5	10		45	0.1	0.2		Fig. A4

Large Amplitude Waves

Ser.	a (m)	h (m)	l (m-1)	dx, dz (m)	T (min)		angle(deg)	a*l	h*l		Sample Fig
D1	500	500	1*10-3	50, 50	100		26.5	0.5	0.5		Fig. D1
D2	250	500	1*10-3	50, 50	100		45	0.25	0.5		Fig. D2

a : Half Width of the Mountain
h : Mountain Height
l : Scorer Parameter = N/U
T : Final Integration Time

Outputs

IEEE big_endian 32bit UNIX binary
Direct Access Format Files

1. Grid Information
   • Grid Size : dx, dz
   • Grid Numbers : nx, nz
   • Grid Position : x(i,k), z(i,k)
2. Physical Variables : All Variables are interpolated to the Grid Position
   • Wind : u(i,k), w(i,k)
   • Thermo-dynamical variables : potential temperature, pressure, air density, etc.
   • Coefficients of Eddy Viscousity
3. Output Time
   • Only the Final Time
4. Model Documentation
   • Governing Equations
   • Grid Distribution & Variable Distribution
   • Spatial & Temporal Integration Schemes
   • Parameterizations Used in Simulations

Results of Participants' Models

• CReSS (in Japanese)
• ARPS (in Japanese)
• MRI/JMA (in Japanese)

Published Articles of St-MIP

• Satomura, T., and Iwasaki, T., Saito, K., Muroi, C., and Tsuboki, K., 2003: Accuracy of terrain following coordinates over isolated mountain: Steep mountain model intercomparison project (St-MIP), Ann. Dis. Prev. Res. Inst., 46 B, 337-346.
  Abstract and PDF file