[GRASSLIST:5415] Re: s.vol.rst

[Jaro Hofierka]

Christoph Hoesli wrote:

>hi
>
>I've interpolated precipitation data with r.vol.rst.
>what is the advantage of this volumetric interpolation over a 2D
>interpolation
>(e.g. s.surf.rst) for precipitation data? s.vol.rst does not consider the
>orography, does it? Is there a benefit using s.vol.rst instead of s.surf.rst
>if I only need a 2D raster output?
>
>thanks
>christoph
>
Hi,

details about volumetric interpolation of precipitation data using 
s.vol.rst can be found in this paper:

Hofierka J., Parajka J., Mitasova H., Mitas L., (2002): Multivariate 
Interpolation of Precipitation Using Regularized Spline with Tension. 
Transactions in GIS  6, pp. 135-150.

Examples and short explanation is also in GRASS book written by Markus 
and Helena:

Neteler, M., Mitasova, H.: Open Source GIS: A GRASS GIS Approach. Kluwer 
Academic Publishers Boston, 2002, 464 p. 

Jaro