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Metompkin Farm - Redox Potential - Jul 2022-Jul 2024


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Created: Oct 24, 2022 at 12:47 p.m.
Last updated: Sep 26, 2024 at 3:56 p.m.
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Sharing Status: Discoverable
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Abstract

This dataset includes redox potential (mV) at 6 different depths from 2 redox probes each at the Virginia Agricultural site (Metompkin Farm) 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:
Metompkin Farm
North Latitude
37.7448°
East Longitude
-75.5833°
South Latitude
37.7427°
West Longitude
-75.5838°

Temporal

Start Date:
End Date:

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 Metompkin Farm Data 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, E. S. Bacmeister (2024). Metompkin Farm - Redox Potential - Jul 2022-Jul 2024, HydroShare, http://www.hydroshare.org/resource/fa1109c6b6f1482b934169ae4e45dd99

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

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

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