Hello Angel, you could have a look at GSLIB (see software listed at www.ai-geostats.org) and at the following paper:
Computers & Geosciences Volume 28, Issue 2 February 2002 Pages 205-212 Title: "FORTRAN programs for space-time modeling" Authors: L. De Cesare, D. E. Myers, and D. Posa Abstract "Modified GSLIB FORTRAN 77 routines are given in this paper for estimating and modeling space-time variograms. Two general families of models are incorporated in the programs: these are the product model and the product-sum model, both based on the decomposition of the space-time covariance in terms of a space covariance and a time covariance. The GSLIB kriging program has also been modified to incorporate these space-time models. One of the programs detects and removes temporal periodicities in the data. The program removes them and generates residuals for all monitoring stations, in order to estimate and model the spatial-temporal variogram using residuals. The modified kriging program also allows the use of cross-validation in conjunction with fitting of space-time variogram models. The trend component and the residual variogram model can be used for prediction. To illustrate the use of the programs, hourly averages of NO2 for the first ten months of 1998 in Lombardy were used. " Author Keywords: Geostatistics; Space-time models; Time series; Product models; Product-sum models Hope this helps. Gregoire PS: could you send next time your question to the ai-geostats mailing list instead of me ? "Angel Fernandez" <[EMAIL PROTECTED]> wrote: > --------------------------------------------- > Attachment:� > MIME Type:�multipart/alternative > --------------------------------------------- > Dear Sir: > > I�m a PhD. Student linked to the �Water Resources and Environmental > Geology� investigation group of the Department of Hydrogeology of the > University of Almer�a (Spain). My doctoral thesis is about the climatic > control of tourist caves for its possible opening to the public. For the > realisation of my investigation I have work with space-time data > (temperature and CO2), collected by dataloggers that I have installed > inside several caves of southern of Spain. I have begun to consult texts > on space-time models of time series. It has been consulting bibliography > like I founded your web page. > > I would be very grateful if you could inform me about software for > Spatiotemporal Analysis. > > > Cordially, > > > �ngel Fern�ndez Cort�s > Dpto de Hidrogeolog�a y Qu�mica Anal�tica > Edificio Central. Universidad de Almer�a > E-04120 Almer�a > <mailto:[EMAIL PROTECTED]> [EMAIL PROTECTED] > Tlfno: 950015989 > Fax: 950015465 > G.I. "Recursos H�dricos y Geolog�a Ambiental" > <http://www.ual.es/GruposInv/RecHid/> > http://www.ual.es/GruposInv/RecHid/ > -- * 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
