Strontium Isotope Dynamics Reveal Streamflow Contributions from Shallow Flow Paths During Snowmelt in a Montane Watershed, Provo River, Utah, USA

2021 ◽  
Author(s):  
Colin A. Hale ◽  
Gregory T. Carling ◽  
Stephen T. Nelson ◽  
Diego P. Fernandez ◽  
Paul D. Brooks ◽  
...  
Keyword(s):  
Strontium Isotope ◽  
Shallow Flow ◽  
Flow Paths ◽  
Provo River

scholarly journals Groundwater surface mapping informs sources of catchment baseflow

2015 ◽  
Vol 19 (4) ◽  
pp. 1599-1613 ◽  
Author(s):  
J. F. Costelloe ◽  
T. J. Peterson ◽  
K. Halbert ◽  
A. W. Western ◽  
J. J. McDonnell
Keyword(s):  
Digital Filter ◽  
Groundwater Discharge ◽  
Independent Data ◽  
Groundwater Extraction ◽  
Shallow Flow ◽  
Surface Mapping ◽  
Flow Paths ◽  
Data Set ◽  
Groundwater Mapping ◽  
Regional Groundwater

Abstract. Groundwater discharge is a major contributor to stream baseflow. Quantifying this flux is difficult, despite its considerable importance to water resource management and evaluation of the effects of groundwater extraction on streamflow. It is important to be able to differentiate between contributions to streamflow from regional groundwater discharge (more susceptible to groundwater extraction) compared to interflow processes (arguably less susceptible to groundwater extraction). Here we explore the use of groundwater surface mapping as an independent data set to constrain estimates of groundwater discharge to streamflow using traditional digital filter and tracer techniques. We developed groundwater surfaces from 88 monitoring bores using Kriging with external drift and for a subset of 33 bores with shallow screen depths. Baseflow estimates at the catchment outlet were made using the Eckhardt digital filter approach and tracer data mixing analysis using major ion signatures. Our groundwater mapping approach yielded two measures (percentage area intersecting the land surface and monthly change in saturated volume) that indicated that digital filter-derived baseflow significantly exceeded probable groundwater discharge during most months. Tracer analysis was not able to resolve contributions from ungauged tributary flows (sourced from either shallow flow paths, i.e. interflow and perched aquifer discharge, or regional groundwater discharge) and regional groundwater. Groundwater mapping was able to identify ungauged sub-catchments where regional groundwater discharge was too deep to contribute to tributary flow and thus where shallow flow paths dominated the tributary flow. Our results suggest that kriged groundwater surfaces provide a useful, empirical and independent data set for investigating sources of fluxes contributing to baseflow and identifying periods where baseflow analysis may overestimate groundwater discharge to streamflow.

scholarly journals Groundwater surface mapping informs sources of catchment baseflow

2014 ◽  
Vol 11 (11) ◽  
pp. 12405-12441 ◽  
Author(s):  
J. F. Costelloe ◽  
T. J. Peterson ◽  
K. Halbert ◽  
A. W. Western ◽  
J. J. McDonnell
Keyword(s):  
Digital Filter ◽  
Water Resource Management ◽  
Groundwater Discharge ◽  
Groundwater Extraction ◽  
Shallow Flow ◽  
Surface Mapping ◽  
Flow Paths ◽  
Independent Dataset ◽  
Groundwater Mapping ◽  
Regional Groundwater

Abstract. Groundwater discharge is a major contributor to stream baseflow. Quantifying this flux is difficult, despite its considerable importance to water resource management and evaluation of the effects of groundwater extraction on streamflow. It is important to be able to differentiate between contributions to streamflow from regional groundwater discharge (more susceptible to groundwater extraction) compared to interflow processes (arguably less susceptible to groundwater extraction). Here we explore the use of unconfined groundwater surface mapping as an independent dataset to constrain estimates of groundwater discharge to streamflow using traditional digital filter and tracer techniques. We developed groundwater surfaces from 98 monitoring bores using Kriging with external drift. Baseflow estimates at the catchment outlet were made using the Eckhardt digital filter approach and tracer data mixing analysis using major ion and stable isotope signatures. Our groundwater mapping approach yielded two measures (percentage area intersecting the land surface and monthly change in saturated volume) that indicated that digital filter-derived baseflow significantly exceeded probable groundwater discharge during the high flow period of spring to early summer. Tracer analysis was not able to resolve contributions from ungauged tributary flows (sourced from either shallow flow paths, i.e. interflow and perched aquifer discharge, or regional groundwater discharge) and regional groundwater. Groundwater mapping was able to identify ungauged sub-catchments where regional groundwater discharge was too deep to contribute to tributary flow and thus where shallow flow paths dominated the tributary flow. Our results suggest that kriged unconfined groundwater surfaces provide a useful, empirical and independent dataset for investigating sources of fluxes contributing to baseflow and identifying periods where baseflow analysis may overestimate groundwater discharge to streamflow.

A CASE STUDY OF SHALLOW FLOW PATHS IN A STEEP ZERO-ORDER BASIN

1991 ◽  
Vol 27 (4) ◽  
pp. 679-685 ◽  
Author(s):  
J. J. McDonnell ◽  
Ian F Owens ◽  
M. K. Stewart
Keyword(s):  
Zero Order ◽  
Shallow Flow ◽  
Flow Paths

Proper flow paths in vertex-weighted communication nets

1968 ◽  
Vol 115 (3) ◽  
pp. 376 ◽  
Author(s):  
B.R. Myers ◽  
B.R. Myers ◽  
E.A. Davila
Keyword(s):  
Flow Paths

Critical energy flow paths for SEA models

1999 ◽  
Author(s):  
Ed O'Keefe ◽  
Matt Berge
Keyword(s):  
Energy Flow ◽  
Critical Energy ◽  
Flow Paths

Flow paths and waterbottom gradients across a stepped slope profile, offshore Brunei

2018 ◽  
Author(s):  
T.A. McGilvery (Mac)
Keyword(s):  
Flow Paths
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