Okay, one more question and then I should be done.
Is there any documentation of the legend for the inundation frequency output? There doesn't appear to be an option to look at this map (and therefore its legend) in the during-run mapping window analysis tools, and I can't find any mention in documentation aside from 30, 60, and 90 days. The GIS output has 0, 1, 4, 5, 6, and 7. 0 is clearly always-wet and 6 appears to be always-dry, but the other numbers are unclear.
Sorry about the deficiency in documentation. This is from some metadata we created when running the model:
Inundation maps were created by running SLAMM for 5 different inundation elevations (H1-H5 in the subsite parameters)
Raster values are: 0 (zero) - open water, 1 - inundated at H1 level (we often set this to the 30-day inundation level), 2 - inundated at H2 (we have used 60 days), 3 - inundated at H3 (90 days) 4 - inundated by H4 (we often set this to the 10 years storm), 5 - inundated at H5 (100 years storm), 6 - above H5, 7 - below H5 but not connected, 8 - protected by dikes, -99 no data/blank