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. Author manuscript; available in PMC: 2011 Jun 1.
Published in final edited form as: J Agric Biol Environ Stat. 2010 Jun 1;15(2):176–197. doi: 10.1007/s13253-009-0004-z

Table 1.

Mean square error (MSE), mean absolute error (MAE), empirical coverage, average length of 90% predictive intervals (PI) and predictive variance for ordinary kriging, Bayesian melding and the downscaler method for three days in the 2001 high-ozone season.

Day Method MSE MAE Empirical
coverage of
90% PI		 Average
length of
90% PI		 Average
predictive
variance
06/21/2001 Ordinary kriging 37 4.9 90% 21 40
Bayesian melding 35 4.8 78% 14 19
Downscaler 10 2.5 99% 19 35
07/10/2001 Ordinary kriging 39 4.7 96% 23 48
Bayesian melding 32 4.3 88% 17 26
Downscaler 16 2.9 97% 21 43
08/11/2001 Ordinary kriging 31 4.4 91% 21 41
Bayesian melding 15 3.0 79% 12 13
Downscaler 6 1.9 97% 17 29