| Summary: | From the Proceedings of the 1982 Meetings of the Arizona Section - American Water Resources Assn. and the Hydrology Section - Arizona - Nevada Academy of Science - April 24,1982, Tempe, Arizona === Log-transmissivity, specific capacity, and water-level data from the Tajo River basin surrounding Madrid, Spain, are analyzed by geostatistical methods. The existing log-transmissivity data base is augmented with the aid of regression on log-specific capacities. The augmented set of data is used to obtain estimates of mean log- transmissivities over finite sub-regions of the aquifer by kriging. Kriging of water-level data at selected points in the aquifer is accomplished by removing the drift through an iterative generalized least squares procedure. The covariance matrices of the log-transmissivity and water-level estimation errors are used to investigate the structure of these errors.
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