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Review of data for Deception AOI. A comparison of the eDTM, trim and Lidar dem - showing two transect within Deception (location on which isat points fall.
Trim is consistently closer to TRIM as compared to eDTM
Lidar subtract eDTM (left) and TRIM (right) for Deception AOI. Range of colours from red (-ve to green/blue (+ve). transparent is where delta is within 5m (-ve or +ve) ]
Overall thoughts
TRIM estimates showed larger proportion of data with -5m to +5m than eDTM.
eDTM showed bias to under estimate of elevation.
eDTM sensitive to cutblocks
both TRIM and EDTM showed higher error in areas with high hillshade.
Compare the ensemble DTM to current data sources:
calc stats for elevations in lakes in both DEMs.
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