Secondary Forest was classified using the SVVI MVC product. A
threshold of 50 was used, and values less than or equal to this value
were classified as potentially Secondary Forest in the same manner as
potentially Built was implemented. An example of how the thresholdbased
classification of SVVI was applied to classify Secondary Forest is
shown in Fig. 7. While classifying 2010 Secondary Forest, we found
that SLC-off effects lowered SVVI MVC values in some areas near scene
edges, and caused areas classified as Agriculture for 2000 to be classified
as Secondary Forest for 2010. Because this was found to be a SLC-off artifact
and because transition fromAgriculture to Secondary Forest is unlikely,
Savanna was classified based on two inputs, SVVI MVC texture and
the SVVI texture MVC. For SVVI MVC texture, texture was computed
after creating the SVVI MVC. For SVVI texture MVC, texture was computed
for each date's SVVI image and then the MVC of SVVI texture
values was created (Fig. 6). If either of the two products described
above indicated Savanna, then a layer indicating potentially Savanna
was created.