Bayesian Analysis

Optimal Design in Geostatistics under Preferential Sampling

Gustavo da Silva Ferreira and Dani Gamerman

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Abstract

This paper analyses the effect of preferential sampling in Geostatistics when the choice of new sampling locations is the main interest of the researcher. A Bayesian criterion based on maximizing utility functions is used. Simulated studies are presented and highlight the strong influence of preferential sampling in the decisions. The computational complexity is faced by treating the new local sampling locations as a model parameter and the optimal choice is then made by analysing its posterior distribution. Finally, an application is presented using rainfall data collected during spring in Rio de Janeiro. The results showed that the optimal design is substantially changed under preferential sampling effects. Furthermore, it was possible to identify other interesting aspects related to preferential sampling effects in estimation and prediction in Geostatistics.

Article information

Source
Bayesian Anal., Volume 10, Number 3 (2015), 711-735.

Dates
First available in Project Euclid: 20 February 2015

Permanent link to this document
https://projecteuclid.org/euclid.ba/1424441439

Digital Object Identifier
doi:10.1214/15-BA944

Mathematical Reviews number (MathSciNet)
MR3420820

Zentralblatt MATH identifier
1336.62217

Keywords
optimal design Geostatistics preferential sampling point process

Citation

Ferreira, Gustavo da Silva; Gamerman, Dani. Optimal Design in Geostatistics under Preferential Sampling. Bayesian Anal. 10 (2015), no. 3, 711--735. doi:10.1214/15-BA944. https://projecteuclid.org/euclid.ba/1424441439


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See also

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