RE: AI-GEOSTATS: validation of Simulation

2006-07-25 Thread Pierre Goovaerts
Hi Stefano, First, I am not sure that stochastic simulation is necessary in your case since you seem to be only interested in what I would call a measure of local (or location-specific) uncertainty. MultiGaussian kriging would in theory give you exactly the same results at less computational

AI-GEOSTATS: geostatistical simulation questions

2006-07-25 Thread Thomas Adams
List: I am interested in doing some geostatistical simulations using GSTAT and have some theoretical questions. I am attempting to model hourly rainfall accumulations over a large region, so there will almost always be zero rainfall somewhere. I can generate random fields of precipitation,

RE: AI-GEOSTATS: geostatistical simulation questions

2006-07-25 Thread Pierre Goovaerts
Hi Thomas, I am assuming that you transform your data before conducting your (sequential?) Gaussian simulation. In this case, the backtransform would yield only positive values, assuming of course that like S-GeMS Gstat asks the user to specify the minimum and maximum of the target histogram.