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GroMoPo Metadata for Byrds Mill Spring chemograph model

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Created: Feb 07, 2023 at 7:18 p.m.
Last updated: Feb 07, 2023 at 7:18 p.m.
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Rhythmic springs occur when a groundwater flowpath that supplies a spring's discharge form a hydraulic siphon. The hydraulic siphon brings the spring varying fluxes of water that cycle over time. If these flows are only one flowpath in the total spring system, the influx of water from the siphon may have strong effects on water quality, but be difficult to detect in hydrograph data during spring storm response. Oscillations in electrical conductivity data were observed at Byrds Mill Spring, Pontotoc County, Oklahoma (USA). Byrds Mill Spring is the largest spring in Oklahoma by volume, and oscillations in electrical conductivity were observed during a set of extreme precipitation events in May 2015. A data logger placed at the spring's outflow recorded the electrical conductivity of the spring's oscillating between 520 ?S/cm and 10 ?S/cm multiple times while discharge remained steady. A numerical tank model was developed to simulate the electrical conductivity chemograph of Byrds Mill Spring to test hypotheses about the geometry of the siphoning system. The model simplified the karst system as a tank connected to a siphoning drain and a tank connected to a non-siphoning drain joined together by mixing at a T-junction. Using this approach, the model was able to reproduce key features of the Byrds Mill Springs chemograph. The model results provide controls on where the siphon may be located and the dimensions of the siphon system.

Subject Keywords



Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
Place/Area Name:
United States
North Latitude
East Longitude
South Latitude
West Longitude


Additional Metadata

Name Value
Scale < 10 km²
Layers 1 layer
Purpose Groundwater resources;Groundwater contamination
GroMoPo_ID 99
IsVerified True
Model Code Custom made in excel
Model Link
Model Time 15-May
Model Year 2020
Model Authors J. Richins
Model Country United States
Data Available Report/paper only
Developer Email
Dominant Geology Carbonate (including karst)
Developer Country United States
Publication Title Analytical Modeling of Conductivity Chemographs of Byrds Mill Spring
Original Developer Yes
Additional Information Karst flow model of rhythmic spring
Integration or Coupling Surface water;Geochemical
Evaluation or Calibration Groundwater chemistry
Geologic Data Availability

How to Cite

GroMoPo, J. Richins (2023). GroMoPo Metadata for Byrds Mill Spring chemograph model, HydroShare,

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


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