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, using both conditional and unconditional simulations using GSTAT. However, I get negative values as well as (mostly) positive values. The simulated fields otherwise look very reasonable. The data I used (and must use) to estimate my variogram has zero values where no rainfall occurs. What does this suggest to you? I am using gaussian simulation.

I have seen some references to more exotic geostatistcal simulation methods using bayesian or some other methods. Is this what I need?

From reading the literature, I have seen that some researchers have successfully used indicator kriging and simulation. With GSTAT I can successfully do simulations using 'method : is' rather than 'method : gs', how using GSTAT do I model a continuous (non-binary) variable using the GSTAT syntax?

Regards to all,
Tom

--
Thomas E Adams
National Weather Service
Ohio River Forecast Center
1901 South State Route 134
Wilmington, OH 45177

EMAIL:  [EMAIL PROTECTED]

VOICE:  937-383-0528
FAX:    937-383-0033

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