Central Valley Aquifer, Chapters A and B - MAE Class Websites

28 Groundwater Availability of the Central Valley Aquifer, California
Table A2. Distribution of statistical properties for the percentage of coarse-grained deposits for the Central Valley, Calfornia, by domain, including variogram and variogram
models.
-
Spatial
Spatial
Valley
province
province
number2 Variogram Variogram models
Area
Domain (square
miles)
3
Model 1 - Exponential Model 2 - Gaussian
Num-
Anisotropy/
ber of Mean Variance rotation Nugget
Directional scales
Directional scales
Sill
Sill
samples
(degrees)
1 2 3 1 2 3
10 597 1,010 39 1,348 0 1,300 2,400 5,000 15,000 500 800 98,000 328,000 700
Western 11 3,524 6,423 25 820 10 1,100 1,200 16,000 21,000 400 300 131,000 656,000 2,300
12 2,588 4,632 32 1,069 15 1,300 1,600 20,000 28,000 400 500 164,000 492,000 500
20 1,198 1,466 45 1,029 20 1,000 2,300 16,000 59,000 800
508 433 29 820 20 0 2,700 16,000 8,000 200
Westside 21 - 844 1,343 30 982 47 1,000 2,200 20,000 30,000 500
384 481 33 1,012 47 1,300 2,000 17,000 39,000 500
absent
22 865 4,470 51 876 31 1,600 1,200 459,000 33,000 600
Joaquin
2,373 8,931 34 936 31 300 2,100 3,000 4,000 200 600 66,000 164,000 300
375 330 37 691 35 0 2,200 30,000 20,000 200
488 1,119 36 878 35 1,100 1,500 21,000 21,000 600
498 1,157 46 577 30 1,000 900 26,000 39,000 200
1,027 1,560 47 837 30 1,000 1,600 39,000 30,000 500
2,788 2,562 43 1,042 28 500 2,100 11,000 8,000 300 900 164,000 295,000 2,000
2,500 2,775 41 1,314 28 1,200 2,000 16,000 25,000 700
6,568 374 26 874 33 0 2,900 20,000 20,000 0 9,800 197,000 656,00 197,000
6,568 4,685 35 1,138 33 900 1,400 6,000 4,000 400 1,400 180,000 558,000 400
23
24
absent
30
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