Geoscience Reference
In-Depth Information
a
b
c
d
e
f
Fig. 1.2
Sampling schemes.
a
Regular sampling
on an evenly-spaced rectangular grid,
b
uniform
sampling
by obtaining samples randomly located within regular grid squares,
c
random
sampling
using uniformly-distributed
xy
coordinates,
d
clustered sampling
constrained by
limited access in a quarry, and
traverse sampling
along
e
river valleys and
f
road cuts.
