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Data from Malenda et al. (2019), Floodplain hydrostratigraphy from sedimentology, geophysics, and remote sensing


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Resource type: Composite Resource
Storage: The size of this resource is 13.3 MB
Created: Nov 20, 2019 at 11:32 p.m.
Last updated: Feb 12, 2020 at 3:31 p.m.
DOI: 10.4211/hs.394a6900a0bd4911b642f9ba94046780
Citation: See how to cite this resource
Content types: Single File Content 
Sharing Status: Published
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Abstract

This file includes the data published in: Malenda, H.F., Sutfin, N.A., Stauffer, S., Guryan. G., Rowland, J.C., Williams, K.H., and Singha, K. (2019). From Grain to Floodplain: Evaluating heterogeneity of floodplain hydrostatigraphy using sedimentology, geophysics, and remote sensing. Earth Surface and Planetary Landforms, doi:10.1002/esp.4613.

Floodplain stratigraphy, a major structural element of alluvial aquifers, is a fundamental component of floodplain heterogeneity, hydraulic conductivity, and connectivity. Watershed-scale hydrological models often simplify floodplains by modeling them as largely homogeneous, which inherently overlooks natural floodplain heterogeneity and anisotropy and their effects on hydrologic processes such as groundwater flow and transport and hyporheic exchange. This study, conducted in the East River Basin, Colorado, USA, combines point-, meander-, and floodplain-scale data to explore the importance of detailed field studies and physical representation of alluvial aquifers. We combine sediment core descriptions, hydraulic conductivity estimates from slug tests, ground-penetrating radar (GPR), historical maps of former channels, LiDAR-based elevation and Normalized Difference Vegetation Index data to infer 3-D fluvial stratigraphy. We compare and contrast stratigraphy of two meanders with disparate geometries to explore floodplain heterogeneity and connectivity controls on flow and transport. We identify buried point bars, former channels, and overbank deposits using GPR, corroborated by point sediment descriptions collected during piezometer installment and remotely sensed products. We map heterogeneous structural features that should control resultant flow and transport; orientation and connectivity of these features would control residence times important in hydrologic models.

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Resource Level Coverage

Spatial

Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
Place/Area Name:
East River Basin, Crested Butte, Colorado
North Latitude
38.9242°
East Longitude
-106.9462°
South Latitude
38.9207°
West Longitude
-106.9518°

Temporal

Start Date:
End Date:

Content

References

Related Resources

The content of this resource is part of: Malenda, H.F., Sutfin, N.A., Stauffer, S., Guryan. G., Rowland, J.C., Williams, K.H., and Singha, K. (2019). From Grain to Floodplain: Evaluating heterogeneity of floodplain hydrostatigraphy using sedimentology, geophysics, and remote sensing. Earth Surface and Planetary Landforms, doi:10.1002/esp.4613.

Credits

Funding Agencies

This resource was created using funding from the following sources:
Agency Name Award Title Award Number
National Science Foundation GRFP‐2014183364
The U.S. Department of Energy (DOE), Office of Science, Office of Biological Env. Research (BER) DE‐AC02‐05CH11231

How to Cite

Malenda, H., K. Singha, J. Randell (2020). Data from Malenda et al. (2019), Floodplain hydrostratigraphy from sedimentology, geophysics, and remote sensing, HydroShare, https://doi.org/10.4211/hs.394a6900a0bd4911b642f9ba94046780

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

 http://creativecommons.org/licenses/by-nc/4.0/
CC-BY-NC

Comments

Jackie Randell 4 months, 2 weeks ago

Remote Sensing Data owned by Los Alamos National Laboratory (LANL)

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