Sample submission to the ICC

Notes on the COLA GSWP data tape:
Model: Simplified SiB (SSiB, Xue et al 1991). 0-Dimensional version modified to 2-D for this project.
Contact: 

	Paul A. Dirmeyer
	COLA/IGES
	4041 Powder Mill Road, Suite 302
	Calverton, MD 20705 USA
	(301) 902-1254 fax: (301) 595-9793
	dirmeyer@cola.iges.org
Header(1): COLA
File extension: .cola

Wilting point (mm) is a function of soil AND vegetation, calculated as: 

  	WP = n * D*(-exp(c1)/psi_s)**(-1/b)
n = porosity from GSWP Table 1
psi_s = soil tension at saturation (GSWP Table 1)
b = soil wetness exponent (GSWP Table 1)
D = depth of soil (mm)
c1 = from Xue et al 1991, Table 2 (function of vegetation)

Field capacity:
Calculated by saturating the soil at every point and draining for 120 hours (5 days).

Convergence:
This is what I got for the number of unconverged points out of 14637 points:
After
year:		 Points unconverged:
at 5% or 5 mm 10% or 10 mm
4 3007 1118
5 2226 883
6 1637 795
7 1489 673
8 1365 653
9 1356 641
10 1289 560
Areas which did not fully spin up were almost all in arid regions where slow drainage was occuring. In most of these areas the soil moisture was below wilting point by year 10, so little impact on surface moisture or energy fluxes is expected.