Going Forward: Extending and Exploiting the DEMIX Database With MICRODEM

We show the power of the DEMIX database and the reference DEMs created to support it to analyze the properties and characteristics of 1 arc second global DEMs.  This allows us to see why COPDEM and FABDEM are best, and how they improve on the others.  The distributions of the differences from the reference DEMs in terms of elevation, slope, and roughness show that COPDEM and FABDEM consistently have the least bias compared the reference DEM, and the smallest standard deviations.

References:

1. Bielski, C.; López-Vázquez, C.; Guth. P.L.; Grohmann, C.H. and the TMSG DEMIX Working Group, 2023. DEMIX Wine Contest Method Ranks ALOS AW3D30, COPDEM, and FABDEM as Top 1” Global DEMs: https://arxiv.org/pdf/2302.08425.pdf  
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