Milford Neck - Redox Potential - Mar 2022-Jul 2024

Authors:

Dannielle Pratt Holly Michael Amanda Sprague-Getsy Julia A. Guimond Eva Snell Bacmeister

Owners:

Rachel McQuiggan Dannielle Pratt

Type:

Resource

Storage:

The size of this resource is 15.7 MB

Created:

Oct 20, 2022 at 6:04 p.m.

Last updated:

Feb 03, 2025 at 5:55 p.m.

Citation:

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Sharing Status:	Public
Publication Status:	Pending Metadata Review This resource is under review for minimum metadata and to ensure that it adheres to community guidelines.
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Abstract

This dataset includes redox potential (mV) at 6 different depths from 4 redox probes each at the Delaware Forested site (Milford Neck) for the CZNet Coastal Cluster. Redox potential was measured continuously in the field at 15-minute intervals with SWAP Instrument ORP-120-B redox probes installed into the ground. The probes each have 6 platinum electrode sensors that measure soil redox potential at 5 cm, 15 cm, 25 cm, 35 cm, 45 cm, and 120 cm from the ground surface. Each probe was connected to a Campbell CR1000X datalogger with a SWAP Instrument REF-12-0-A Ag/AgCl reference electrode. The reference electrode was installed below the ground surface at a depth that was always in contact with groundwater. The reference probes were installed into capped PVC surrounded by a 3 M KCl gel with holes drilled at the bottom of the PVC for contact with the groundwater. Redox potential values were corrected to the standard hydrogen electrode value by adding +200 mV to the measured potentials. Due to regular replacement of external data logger batteries and data downloads, there may be gaps in the data.

Subject Keywords

Coverage

Spatial

Coordinate System/Geographic Projection:

WGS 84 EPSG:4326

Coordinate Units:

Decimal degrees

Place/Area Name:

Milford Neck

North Latitude

38.9689°

East Longitude

-75.3703°

South Latitude

38.9668°

West Longitude

-75.3726°

Temporal

Start Date:	03/18/2022
End Date:	07/09/2024

Streets Terrain Satelite

Spatial Extent

Content

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Additional Metadata

Name	Value
Units	Redox Potential - millivolts (mV)
Method	Data collected using a SWAP Instrument ORP-120-B redox probe
Frequency	15-minute intervals
TimeStamp	Times in this dataset are in Eastern Standard Time (EST); YYYY-MM-DD HH:MM:SS; UTC Offset - 5 hours
Variables	Redox Potential
Dataset Type	Multi-time series
Sample Medium	Soil
Processing Level	Millivolt values have had +200mV added to them to adjust for the estimated value had a standard hydrogen electrode been used and based on the reference electrode deployed (Ag/AgCl in saturated KCl solution).

Related Resources

This resource belongs to the following collections:

Title	Owners	Sharing Status	My Permission
CCZN Milford Neck Data	Rachel McQuiggan · Dannielle Pratt	Discoverable & Shareable	Open Access

Credits

Funding Agencies

This resource was created using funding from the following sources:

Agency Name	Award Title	Award Number
NSF	Collaborative Research: Network Cluster: The Coastal Critical Zone: Processes that transform landscapes and fluxes between land and sea	2012484

Contributors

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
Rachel McQuiggan	University of Delaware;Delaware Geological Survey	Delaware, US

How to Cite

Pratt, D., H. Michael, A. Sprague-Getsy, J. A. Guimond, E. S. Bacmeister (2025). Milford Neck - Redox Potential - Mar 2022-Jul 2024, HydroShare, http://www.hydroshare.org/resource/a67d5e40ec0043b79cbc3e1fb7034578

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

http://creativecommons.org/licenses/by/4.0/

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