RE: [ai-geostats] KED

2005-11-29 Thread Pierre Goovaerts
Hi Rajni, You can find an application of KED to the mapping of hydraulic conductivity in my latest publication in mathematical Geology: Patriarche, D., Castro, M.C. and P. Goovaerts. 2005. Estimating regional hydraulic conductivity fields - A comparative study of geostatistical methods. Mathemat

[ai-geostats] standard error of E-type estimate

2005-11-29 Thread Noemi Barabas
Dear list, I have estimated local cdfs for a continuous variable using indicator kriging, and would like to go beyond the local variance of the random variable to estimate the standard error of the E-type estimate at each location. Is there a way to calculate this using GSLib programs? Simulation

RE: [ai-geostats] kriging interpolation time vs depth

2005-11-29 Thread Noemi Barabas
Dear Enzo,   It is possible to calculate a semivariogram for one-dimensional data with the same method used for two dimensional (spatial) data.  The problem arises in kriging because of the string effect, in which the data points at the extreme end of the search window are weighted too hi

[ai-geostats] KED

2005-11-29 Thread Rajni Gaur
Dear List members, Can anyone of the seniors of the geostatistical community, please give me some references regarding the application of kriging with external drift (KED) pertaining to the groundwater systems. I want to apply KED for the estimation of transmissivity values for an aquifer. Looking