Program description:
Drones have been used for photogrammetry and high-resolution LIDAR surveys for several years. Recently magnetometers have been deployed from drones. This presentation will provide a general overview of drones and drone-based mapping, but will focus on geophysical mapping with drone-based systems. Case histories will be presented that demonstrate drone-based magnetic surveys to locate abandoned well casings and pipelines. Two case histories will be presented demonstrating the use of drone-based magnetometry to explore the Crestone Crater in Great Sand Dunes National Park to determine the structure and vertical extent of the feature, and an example where a drone-based magnetometer survey was used to map basaltic bedrock for a reservoir siting study. The presentation will provide an overview of several developing electromagnetic instruments that will allow electrical conductivity mapping in depth ranges of a few meters to several hundred meters.

State-specific CEU recognition:

• Georgia Water Well Standards Advisory Council — 1 hour
• Louisiana Department of Natural Resources — 1 credit hour
• Maryland State Board of Well Drillers — 1 credit hour
• Mississippi Department of Environmental Quality — 1 hour
• New Jersey Department of Environmental Protection — 1 CEP (in effect through 03-31-2023)
• Oklahoma Water Resources Board — 1 CEU
• Vermont Department of Environmental Conservation — 1 hour
• Washington Department of Ecology — 1 CEU
• Wyoming State Engineer’s Office — 1 CPC