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The
program methodology is a continuous process throughout the year.
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The first step Seg Prep establishes the
training segments, digitizes the perimeters, and distributes software and
data to the field offices, this goes from February to late May
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Seg digitizing begins during the JAS and
continues until all fields and all segments are completely digitized, this
may run thru July or even until mid-October in some states depending on human
resource availability.
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Scene selection begins in early summer, and
could run into the late fall depending on image availability.
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Seg cleanup analyzes the newly digitized
segments with the newly acquired imagery.
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Fields that are bad either by digitizing or
cover type are corrected or removed from training.
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Scene processing fits each segment onto a scene
by shifting and cloud influenced segments are removed.
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The cluster/classification process runs in
concert with the scene processing step, as segments are shifted they can be
clustered.
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Estimation can be performed as early as August,
once an entire state is finished classification, and the outputs are
satisfactory.
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The mosaic process runs once estimation is
completed. The mosaic for a particular state is released once the county
estimates are released for that state.
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