Hydraulic Architecture of the Brazos River Alluvial Aquifer

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Created: Jan 23, 2020 at 10:38 p.m.
Last updated: Jan 23, 2020 at 10:45 p.m.
DOI: 10.4211/hs.2258c447dfbc47b485262639f67faf10
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Geophysical and hydrogeological data can be used to estimate aquifer hydraulic parameters and test alternative conceptual models of subsurface hydrology. Here we confirm the existence of a relic sand-dominated channel-belt in an alluvial floodplain using electrical resistivity tomography and time-domain electromagnetics. After converting the bulk resistivity structure to porosity, we use hydrological modeling to gain new insights into the hydraulics and compartmentalization of a heterogeneous alluvial floodplain aquifer system. We discovered that rainwater infiltration fills the initially dry channel-belt laterally rather than from direct infiltration from above. This new understanding of preferential flow paths around and into sand-dominated channel-belts outlines how the architecture of an alluvial floodplain determines its response to natural hydrologic disturbances, thereby providing an improved basis for making informed decisions about water management strategies.

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Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
Place/Area Name:
Texas A&M Research Farm
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This resource updates and replaces previous version: http://www.hydroshare.org/resource/05970e87da794057baf1e41b9a0b48e1



People or Organizations that contributed technically, materially, financially, or provided general support for the creation of the resource's content but are not considered authors.

Name Organization Address Phone Author Identifiers
Gretchen R. Miller Texas A&M University;Texas Water Observatory Texas, US 9796761273 ORCID , ResearchGateID , GoogleScholarID
Al Nelson Texas A&M Research Farm
Charles Stroyer Interpex Limited

How to Cite

Martin, J. M., M. Everett, Texas Water Observatory (2020). Hydraulic Architecture of the Brazos River Alluvial Aquifer, HydroShare, https://doi.org/10.4211/hs.2258c447dfbc47b485262639f67faf10

This resource is shared under the Creative Commons Attribution CC BY.



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