Dear friends and colleagues:

I ask your forgiveness for replying to all of you and in this way crowding
our Mail List.

Radiation balance equation, soil and atmospheric water balance equations,
and energy balance equation, can be combined in a handful of ways to derive
what could be called climatic and bioclimatic indexes. We have done this
around here to study large scale causes of meteorological droughts,
different aspects of meteorological and agricultural droughts, and as a
basis for drought surveillance and early warning systems. This kind of
analysis has also been done here for climate change impact assessments.
Sorry we have none of this in English and no available softwares.

These approaches seem to belong to a somewhat  relegated branch of
meteorology and climatology named Physical Climatology. You may find rather
detailed accounts of this branch of science in works and books made by the
former russian school (Budyko and Riabchikov) and western authors as Sellers
and Geiger.

I don't know of a specific use of these tools in modern biophysical crop
models.

With my very best wishes for all of you,

Roger E. Rivero Vega

----- Original Message -----
From: "vasiraju murthy" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, April 18, 2007 7:24 PM
Subject: Energy and water balance


> Dear members,
>
> Regards and best wishes,
>
> The following question is with reference to "Energy and water balance".
>
> When the energy balance Rn = H+LE+G+Mi and the water balance P =E+I+R+Mi,
> then a  study on the combined effect of these two balances would possibly
> provide some logical information useful as  operational agrometeorological
> service/s. Are any CGMs, GCMs etc., have components dealt in this
> direction?If so, the source of availability of software may kindly be
> informed.
>
> Sincerely,
>
> Murthy.
>
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