Dear Jean-Philippe, Your question is somewhat puzzling. In fact, in all rigor factorial kriging is already a kind of cokriging since you are estimating a variable (i.e. spatial component) from another variable (raw measurements). Are you trying to estimate regionalized factors, that is perform multivariate factorial kriging, or do you want to filter your seimic data and use it as secondary information to estimate another variable? I used a similar approach in:
Goovaerts, P. 1999. Accounting for scale-dependent correlation in the spatial prediction of soil properties. In A. Soares, J. Gomez-Hernandez, and R. Froidevaux, editors, geoENV II - Geostatistics for Environmental Applications. Kluwer Academic Publishers, Dordrecht, pages 405-416. Regards, Pierre <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><> Dr. Pierre Goovaerts President of PGeostat, LLC Chief Scientist with Biomedware Inc. 710 Ridgemont Lane Ann Arbor, Michigan, 48103-1535, U.S.A. E-mail: [EMAIL PROTECTED] Phone: (734) 668-9900 Fax: (734) 668-7788 http://alumni.engin.umich.edu/~goovaert/ <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><> On Mon, 31 Mar 2003, [iso-8859-1] Jean-Philippe Goyen wrote: > > hello ai-geostatisticians, > > I am trying to program factorial co-kriging for filtering of seismic amplitudes. But > I didn't find anywhere the algorithm or even matrix formulation of the system to > solve. As I am more a computer-scientist than a geostatistician, I am not sure of > setting the rigth system to solve. > > So I was just wondering if it would be correct to perform factorial kriging of my > two sets of data (as I could obtain decomposed variograms), and then cokrige the > results ? (hope my question has a sense). > > Thank you very much for any advice or reference. > > Jean-Philippe Goyen > > > > --------------------------------- > Do You Yahoo!? -- Une adresse @yahoo.fr gratuite et en français ! > Testez le nouveau Yahoo! Mail -- * 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
