wolfcamp {georob}

Wolfcamp Aquifer Data

Description

Piezometric head measurements taken at the Wolfcamp Aquifer, Texas, USA. See Cressie (1993, p. 212–214) for description of the scientific problem and the data. Original data were converted to SI units: coordinates are given in kilometers and pressure heads in meters.

Usage

data(wolfcamp)

Format

A data frame with 85 observations on the following 3 variables:

x

a numeric vector with the easting coordinate in kilometers.

y

a numeric vector with the northing coordinate in kilometers.

pressure

a numeric vector with the piezometric head in meters.

Note

The data were imported from the package geoR.

Source

Harper, W.V. and Furr, J.M. (1986) Geostatistical analysis of potentiometric data in the Wolfcamp Aquifer of the Palo Duro Basin, Texas. Technical Report BMI/ONWI-587, Bettelle Memorial Institute, Columbus, OH.

References

Cressie, N. A. C. (1993) Statistics for Spatial Data, Wiley, New York, doi:10.1002/9781119115151.

Papritz, A. and Moyeed, R. (2001) Parameter uncertainty in spatial prediction: checking its importance by cross-validating the Wolfcamp and Rongelap data sets, GeoENV 2000: Geostatistical for Environmental Applications. Eds P. Monestiez, D. Allard, R. Froidevaux. Kluwer, doi:10.1007/978-94-010-0810-5.

Examples

data(wolfcamp)
summary(wolfcamp)