[Values for these three sites were obtained using the mgn_data
and anc_data programs, whose output is presented in app. 1
and 2. The first table presents
information on image location, pixel scale (),
number of pixels used in the backscatter calculation (N), range
of incidence angles, and radius. The second table provides the
backscatter and physical properties data: backscatter cross section
(), rms slope
(), Fresnel
reflectivity (),
emissivity, and calculated dielectric constants for the smooth-surface
(_{s})
and rough-surface (_{r})
cases discussed in the text. Note that latitude, longitude boundaries
are listed in both the body of the unit description and here.
For the backscatter cross section, values in parentheses represent
the value
(in dB) at plus and minus one standard deviation. For all other
data, values in parentheses represent the minimum and maximum
values of each parameter within the chosen sample box. The number
of significant digits used for each value are reasonable guides
to their accuracy]