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Full-Text Articles in Earth Sciences
Effect Of Rivers On Groundwater Temperature In Heterogeneous Buried-Valley Aquifers: Extent, Attenuation, And Phase Lag Of Seasonal Variation, Nathan Lee Young
Effect Of Rivers On Groundwater Temperature In Heterogeneous Buried-Valley Aquifers: Extent, Attenuation, And Phase Lag Of Seasonal Variation, Nathan Lee Young
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The temperature of groundwater in aquifers is relatively stable when compared to the water temperature in surface-water bodies. However, in aquifers that are hydraulically connected to rivers that have water flux into the aquifer, the local aquifer temperature can show seasonal variation. This project focused on the thermally-altered, near-river zone of such an aquifer, and used numerical methods to examine the extent of seasonal variation in temperature into the aquifer, and the attenuation and phase shift of the signal with distance from the river. The results show that the extent of alteration by diffusive heat flow is negligible compared to …