#
# The covariance matrix has one term:
#    1. Linearly decreasing, std. dev. 5 (K) and correlation length 0.3
#
# The correlation lengths are given in decades (1 decade is about 16 km).
#
2       
2 1     
1      
0     
2 3     
 6  5  0.3
-4  5  0.3