Sample output from the create_mapping function for observations
from September 1993-2007. It is a list of four objects. The first two items
in the list, start_year and end_year, give the first and last
year that were mapped. The second two items, obs_list and
pred_list, are lists of arrays with one 3-dimensional array for each
region. The first dimension is for the year. The other two dimensions are
for the fixed points' y-coordinates, the mapped points' x-coordinates, the
mapped points' y-coordinates, the length of the mapping vectors in the
x-direction, the length of the vectors in the y-direction, and the angles of
the mapping vectors.