Relationships between elevation (horizontal axes) and estimated model coefficients (vertical axes).

Plotted points are values from Tables 1 and 2. Solid lines represent interpolations as discussed in the text. The first eight plots are for estimates x₀, p₁–p₇; the second eight plots are for y₀, q₁–q₇. Note the horizontal axis is the same for each plot; the vertical axis is different for each plot.