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The MM5 vertical coordinate system by Cristina Lozej Archer
 

Summary: The MM5 vertical coordinate system
by Cristina Lozej Archer
Department of Civil and Environmental Engineering
Stanford University
California, USA
lozej@stanford.edu
30 April 2003
The MM5 vertical coordinate system is based on the definition of a
reference state, hydrostatic and constant with time. The reference state is
determined by a constant temperature profile defined as follows:
T0(z) = TSFC0 + A ln
p0(z)
p00
(1)
where three constants need to be defined. Sea-level pressure p00 is set
to 105 Pa. The constant reference temperature at pressure p00 (i.e., TSFC0)
is frequently set to 270, 280, 290, 300 K in polar, midlatitude winter, mid-
latitude summer, and tropical conditions, respectively. The temperature
difference between p00 and p00/e (i.e., A) is usually taken as 50 K, but
should be extracted from typical domain soundings. Reference pressure

  

Source: Archer, Cristina Lozej - Department of Civil and Environmental Engineering, Stanford University

 

Collections: Geosciences; Renewable Energy