Dear Noemi The handling of different support in a kriging system goes all the way back to Matheron's work in the 60's. In fact, that is probably why it caught on in mining so well. The length of drillcore can be handled quite simply, once you have a 'point' semi-variogram model.
There is a whole chapter on this in my old book, Practical Geostatistics (1979) which can be downloaded free from the Web at: http://uk.geocities.com/drisobelclark/practica.html The details on handling different support are also discussed in my 1977 paper "Practical kriging in three dimensions", Computers and Geosciences, Vol 3, pp.173- 180 which can be downloaded via my 'briefcase' at http://uk.geocities.com/drisobelclark/briefcase.html. Your biggest problem is that most (sic) software does not deal with this problem, but assumes all samples to be of equivalent support. Please feel free to contact me if you have any detailed questions Isobel Clark __________________________________________________ Do You Yahoo!? Everything you'll ever need on one web page from News and Sport to Email and Music Charts http://uk.my.yahoo.com -- * To post a message to the list, send it to [EMAIL PROTECTED] * As a general service to the users, please remember to post a summary of any useful responses to your questions. * To unsubscribe, send an email to [EMAIL PROTECTED] with no subject and "unsubscribe ai-geostats" followed by "end" on the next line in the message body. DO NOT SEND Subscribe/Unsubscribe requests to the list * Support to the list is provided at http://www.ai-geostats.org
