Hi Marco
Considering that you are dealing with 5 years
average data, likely there should be some spatial continuity in your data...so,
in a first instance, you should follow a
geostatistical approach and see what data are telling you.
But from a perspective of an hydrogeologist,
first, I'll try to build a groundwater model with contaminant
transport and maybe I'll try to do an inversion exercise.
Then consider that likely you will find a trend on your data.
As final consideration, geostatistical tools to
be used safely require a deep knowledge of the matter:
a precise answer to your question is in some way not possible.
Anyway I hope this is useful,
Bye
Sebastiano
At 21.23 19/04/2010, Marco Branzi wrote:
Hi all,
I should evaluate the spreading of a pollutant
with geostatistical tools (trichloroethylene and
degradation products) in groundwater. I have 100
sampling points that represent the average
pollutant concentration over 5 years,
distributed on the surface of 800 km². I use
geostatistical tools for the first time, i'm sorry, and i need some advice.
In your experience, which could be the best
method of interpolation to apply in this kind of
situation (kriging, IDW ,...)?
Thank you in advance.
Marco
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