over very large areas. Multiple compositing functions could
be used over different areas with spatial masks or ancillary
data used to determine the proper algorithm for each pixel.
For example, in agricultural areas, a maximum NDVI or other
spectral index-based function could be used while the current
algorithm retained in forested areas. Alternatively, those areas
with too few valid pixels to use the similarity approach could
use a different algorithm, while those areas with many valid
pixels the similarity approach may still be appropriate.
Acknowledgments
The authors would like to thank the
LANDFIRE
disturbance
mapping team for their help in developing and evaluating the
image products. We also thank the reviewers for their helpful
comments to improve this manuscript.
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