Research Blog
My research interests include high-resolution monitoring and modeling techniques to better understand groundwater flow in spatially and temporally complex geologic systems. Methods include geochemical sampling of groundwater after recharge events, fracture flow modeling, and the use of thermal imagery from drones. My study sites have included areas in Minnesota, Missouri, Pennsylvania, Florida, and now western Montana. |
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Two of the springs I'm monitoring more intensely have pressure loggers installed to record the water depth at the spring mouths. This was used as a proxy for discharge (in order to create hysteresis plots) and to better predict at what level to place the ISCO actuators for storm events. Last fall, the weirs at the the springs were repaired, giving me the opportunity to better measure the springs' discharge rather than the depth-at-spring-mouth proxy. Earlier this week I installed L-shaped stilling wells at the weirs with pressure loggers inside. Over the rest of the summer I'll be determining the relationship between the pressure logger values in the stilling well and the water height as it passes over the weir, allowing me to convert the values from the pressure logger to spring discharge. I'll also be able to correlate these measurements back to the pressure logger at the spring mouths in order to back-calculate discharge from before the stilling wells were installed.
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