Usage History of 'geohydrologic'

The following chart shows how frequently 'geohydrologic' appeared in printed materials over time. For example, the word 'geohydrologic' occurred 2 times in books in 1945 and 85 times in 2008. From 1945 to 2008, the word 'geohydrologic' was used a total of 4,649 times in books scanned by Google. See Reference: Google Ngram project.

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