Ohio Geological Society Webinar – Morphological Karst Mapping in Ohio (Douglas Aden, Ohio Geological Survey)
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Ohio Geological Society Webinar- Morphological Karst Mapping in Ohio (Douglas Aden)
January 21, 2021
1:00 pm - 2:00 pm
The Ohio Geological Society
Thursday, January 21st
1:00 PM (EST)
WEBINAR
Registration Link: https://zoom.us/webinar/register/WN_59t704XMS72iKcNlqux1TA [zoom.us]
Morphological Karst Mapping in Ohio
Douglas Aden
Ohio Geological Survey
The Ohio Geological Survey has mapped karst in Ohio since 2009. Field mapping of sinkholes has suggested that geomorphological parameters vary between the Bellevue, Delaware, Hillsboro, and Springfield karst regions. Statistical tests confirm that these parameters distinguish the four regions. An understanding of how they differ and what causes those differences can be used to better manage these karst features. Differences between sinkholes within each region were quantified using nine parameters derived from digital elevation model (DEM) analysis. These parameters included: depth, perimeter, area, volume, length of major and minor axes, eccentricity, circularity index, and orientation of karst features. Improved knowledge of the differences between these regions will assist in mitigating and avoiding these geologic hazards.
