B. Foster 6/20/05:
Current Model (tiegcm1.8): Fields in the Zp vertical coordinate:


Fields		Routines	Vertical coord		LBC		UBC
-----------------------------------------------------------------------------------

TN,UN,VN	dt, duv		Midpoints		-7.0		6.75
		(trsolv)				(in nlevp1)

O2,O		comp		Midpoints		-6.75		7.25

N4S,NO,N2D	comp_xxx	Midpoints		-6.75		7.25
		(minor)

OP		oplus		Midpoints		-6.75		zp7.25==0.
		(trsolv)

O2P		elden		Midpoints		-6.75		zp7.25==0.
		(vquart)

TE,TI		settei		Midpoints		-6.75		zp7.25==0.
		(trsolv)

NE		elden		Interfaces		-7.0		7.0
		(vquart)

Z,W,POTEN	addiag,swdot	Interfaces		-7.0		7.0
		dynamo