[RegCNET] surface roughness

[Martin Todd]

Hello,

I would like to change the surface roughness parameter for desert soil 
surfaces. According to the RegCM users guide the roughness length (Z0) is 
defined for each of the 20 BATS landuse categories (Table 2). The value 
for desert surfaces is 0.05m. For certain desert types this may be too 
high by an oerder of magnitude. Is there a way to change the Z0 values 
for a particular landuse category in  Table 2?

Many thanks


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Martin Todd
Reader
Department of Geography
UCL (University College London)
Pearson Building
Gower Street
London
WC1E 6BT

email m.todd at geog.ucl.ac.uk
tel: +44 (0)20 7679 0571
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