Chris There are two ways of approaching data which has a time element:
(1) treat time as a co-variable and use co-kriging. You would probably want to do this if you have more than one variable anyway (2) treat time as a dimension -- as an additional co-ordinate. If your original data is two-dimensional, you can use any normal 3d geostat package for this. If your original data is already 3d, things get a little more complicated. Good place to start would be Geostat Congress Volumes or Noel Cressie's book. 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
