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Crisfield Farm - DTW, Water Temperature, Specific conductance - May 2021-ongoing


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Created: Jan 27, 2022 at 3:58 p.m.
Last updated: Jan 16, 2024 at 6:37 p.m.
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Sharing Status: Discoverable
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Abstract

This dataset includes depth to water (m, from ground surface), water temperature (degrees C) and specific conductance (uS/cm) measurements from four monitoring wells at the Maryland Agricultural site (Crisfield Farm) for the CZNet Coastal Cluster. Pressure, temperature and electrical conductivity were measured continuously in the field at 15-minute intervals with Solinst Levelogger 5 Model 3001s installed in each monitoring well. The Leveloggers were attached to a nylon cord and installed at the approximate depth of the well screen mid-point. Depth to water measurements were converted from Levelogger-measured pressure values. Pressure values were corrected for barometric pressure fluctuations and converted to depth to water values using reference manual depth to water measurements collected at the start and stop of each Levelogger deployment. No correction was done to the temperature values. Specific conductance values were calculated from Levelogger-measured electrical conductivity using the equation given by Standard Method 2510B. Between deployments, each Levelogger was submerged in a calibration solution with a known SC and the real-time reading was recorded. If the real-time reading was +/-5% of the calibration solution concentration, the sensor was calibrated according to manufacturer specifications. SC values were adjusted for sensor drift by adding a correction factor to the sensor-measured value. Leveloggers were occasionally swapped between wells to allow for sensor maintenance and calibration. Because the Leveloggers were periodically stopped to download data before being redeployed, there may be gaps in the record between deployments.

Subject Keywords

Coverage

Spatial

Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
Place/Area Name:
Crisfield Farm
North Latitude
37.9931°
East Longitude
-75.8207°
South Latitude
37.9918°
West Longitude
-75.8218°

Temporal

Start Date:
End Date:

Content

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Additional Metadata

Name Value
Units Depth to water - meters (m); Temperature - degrees Celsius (C); Specific conductance - microSiemens per centimeter (uS/cm)
Method Data collected using a Solinst Levelogger 5 Model 3001
Frequency 15-minute intervals
Timestamp Times in this dataset are in Eastern Standard Time (EST); MM-DD-YYYY HH:MM:SS; UTC Offset - 5 hours
Variables Depth to Water; Temperature; Specific Conductance
Dataset Type Multi-time series
Sample Medium Water
Processing Level Depth to water has been converted from pressure, corrected for barometric pressure fluctuations, and set to reference depth to water manual measurements made at the start and stop of each logger deployment. Specific conductance has been converted from logger-measured electrical conductivity.

Related Resources

This resource belongs to the following collections:
Title Owners Sharing Status My Permission
CCZN Crisfield Farm Data Rachel McQuiggan  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 (2024). Crisfield Farm - DTW, Water Temperature, Specific conductance - May 2021-ongoing, HydroShare, http://www.hydroshare.org/resource/24ae4ba3490346e088c5fca5a745b0b9

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

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

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