Chapter 5. Data Set Development
Six gridded DEMs, and five cartographic sources, were adapted for use in GLOBE. Several of these sources were processed in more than one way (sometimes involving several different organizations) to create 30-second grids. This resulted in 18
combinations of source/lineage used in GLOBE. The source materials are discussed in this chapter, followed by discussions of regional quality control assessments and merges of the data. Thirty histograms showing distribution values for all
source/lineage combinations are presented.