[Qgis-user] Processing of Groundwater Databases with QGIS

[G. Allegri]

Spatial interpolation can be realized in many ways. There are lot
different methods, which fit different needs.

 - Inverse Distance Weighting (IDW)
 - B-Splines
 - Kriging
 - Statistical simulations
 - etc.

As you know, none of them is correct without a knowledge of the
groundwater structure and stratygraphy. Anyway, in general, for this
kind of elaborations, IDW and kriging are mostly used.

AFAIK, QGis can do IDW [1], while the other methods will need external
softwares like GRASS and R. In this case the related QGis plugins can
be used.

If you can give us more details on the kind of interpolation you nedd,
we could give more advices.
Giovanni

[1] http://www.gistutor.com/quantum-gis/20-intermediate-quantum-gis-tutorials/51-inverse-distance-weighting-idw-interpolation-using-qgis.html

2011/5/25 Christine Schmidt <c.schmidt at geotguide.de>:
> Hi Bob,
> thanks for the feed back.
> Do you capture groundwater level data in boreholes and in monitoring wells
> with this plugin to store it in a database? Sounds interesting although I
> wasn't searching exactly for that.
>
> Want to process data of existing groundwater databases with QGIS. Processing
> means precisely the interpolation of groundwater level data and laboratory
> analysis data for groundwater monitoring wells.
>
> I am checking what is already present in this field and what could perhaps
> be contributed for an efficient workflow.
>
> Regards,
> Christine
>
>
>
> ________________________________
> Von: "Bob and Deb" <bobdebm at gmail.com>
> Gesendet: 25.05.2011 18:31:57
> An: "Christine Schmidt" <c.schmidt at geotguide.de>
> Betreff: Re: [Qgis-user] Processsing of Groundwater Databases with QGIS
>
> Hi Christine,
> I've been working on a borehole data entry plugin.  We are using it to
> record historical high groundwater for use in liquefaction zone mapping.
>
> Are you looking for this kind of use cases?
>
> Regards,
> Bob
>
> On May 25, 2011 9:03 AM, "Christine Schmidt" <c.schmidt at geotguide.de> wrote:
>> Dear QGIS community,
>>
>> would like to post my first question in this mailing list as follows:
>> a.. Does anybody know something about a project or use case of processing
>> groundwater databases with QGIS, exspecially in order to make interpolations
>> of point data (well data) ?
>> Got to know something similar in the context of GRASS (Carrera-Hernandez,
>> 2007). But what about QGIS in this application field ?
>>
>> Thanks a lot for any feedback,
>> warm regards,
>> Christine
>
>
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