Dear Alison
Thanks a lot for your work.
I do agree with your points 1 to 6.
For 7. resistances names, I would be in favour of keeping as submitted
(see my explanations below)
--------------------
aerodynamic_resistance (m-1 s)
"The "aerodynamic_resistance" is the resistance to mixing through the boundary
layer toward the surface by means of the dominant process, turbulent transport. Reference: Wesely,
M. L., 1989, doi:10.1016/0004-6981(89)90153-4."
Do we need to add anything further to the definition? I am wondering if the
name could be made more self explanatory by making it
aerodynamic_resistance_to_turbulent_deposition. This is then more similar to
the canopy resistance name and makes clear what is being resisted!
I would argue that the "aerodynamic_resistance" is already self explanatory in
the field of air modelling. So I would keep as it is.
canopy_resistance_to_ozone_dry_deposition (m-1 s)
" The "canopy_resistance" is the resistance of a compound to uptake by the
vegetation canopy. It varies both with the surface and the chemical species or physical state (gas
or particle)."
Is canopy_resistance due only to stomatal resistance or are there other
components? Is there another reference where canopy_resistance is defined as a
term?
The generic term is 'bulk surface resistance' (Rc, s m-1), which
describes the resistance of a surface (land/vegetation) to gas/particle
flux.
The surface here is the canopy. The "canopy resistance" is also a
commonly used terminology. It isa function of the canopy stomatal
resistance (Rstom),the canopy cuticle resistance (Rcuticle), and the
soil resistance (Rsoil). Note that in the case of ozone the uptake by
the cuticle is small compared to the uptake through the stomata
[Kerstiens and Lendzian, 1989], which means that the cuticle transfer
pathway can be neglected in the model parameterization [see Ganzeveld
and Jos Lelieveld , 1995;
http://onlinelibrary.wiley.com/doi/10.1029/95JD02266/pdf].
These names are still under discussion.
Best wishes,
Alison
------
Alison Pamment Tel: +44 1235 778065
NCAS/British Atmospheric Data Centre Email: [email protected]
STFC Rutherford Appleton Laboratory
R25, 2.22
Harwell Oxford, Didcot, OX11 0QX, U.K.
--
Brigitte Koffi, Ph.D. Scientific/Technical Project Officer European
Commission, Joint Research Centre, Institute for Environment and
Sustainability, Air and Climate Unit Office 2414, TP123,Via E. Fermi,
2749 I-21027 Ispra (VA), Italy Tel: +390332786704 Fax: +390332785837 Tel
secretary: +390332783080 https://ec.europa.eu/jrc/ http://www.htap.org/
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