
Arctic Ocean Bayesian Analysis 113
FIGURE 5.6
The top row figures are the patterns in the p osterior mean of salinity of sea
water, at various longitude and depth values, over Latitudes 60-70 North, and
70-75 North. The bottom row contains corresponding figures for Latitudes
75-80 North, and 80-90 No rth.
for ex ample. One common theme that emerges fr om these graphics is that the
posterior is neither simple, nor smooth over space, and standard summary
measures like posterior location or scale parameters may be misleading.
We now present some evidence about the performance of the Markov
Chain Monte Carlo procedure we adopted. In Figure 5.8 we show the