Message-ID: <4D825AAD.30400@uni-muenster.de>
Date: 2011-03-17T19:02:05Z
From: Edzer Pebesma
Subject: using IDW with anisotropy
In-Reply-To: <OF8BC890CA.DD7B9CA4-ON85257856.00537D48-05257856.00546289@worldbank.org>
Are you interpolating in 3D (x,y,t)?
On 03/17/2011 04:21 PM, smurray at worldbank.org wrote:
> hello,
>
> I have a timseries dataset of monthly precip data from rain guages. The coverage
> is relatively sparse (approx 30 stations covering the country) and there is
> strong anisotropy in the data - at the monthly timestep data is strongly
> correlated in the E-W direction. Is there any way to use modify the IDW
> interpolation in gstat, to incorporate a directional bias in the distance weight?
>
> many thanks for any suggestions
>
>
>
>
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--
Edzer Pebesma
Institute for Geoinformatics (ifgi), University of M?nster
Weseler Stra?e 253, 48151 M?nster, Germany. Phone: +49 251
8333081, Fax: +49 251 8339763 http://ifgi.uni-muenster.de
http://www.52north.org/geostatistics e.pebesma at wwu.de