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Trace gas data for Dead Run, Baltimore County, MD, USA


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Created: Apr 26, 2022 at 9:19 p.m.
Last updated: Mar 03, 2024 at 12:36 a.m.
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Sharing Status: Discoverable
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Abstract

This resource includes trace gas data collected at three locations in the Dead Run stream network in Woodlawn, Baltimore County, MD. Dissolved gas species include CH4, N2O, CO2, and N2:Ar. Stream grab samples and ambient air samples are collected biweekly and analyzed for trace gas concentrations at the Cary Institute of Ecosystem Studies. Sampling stations are co-located with USGS stream gaging stations 01589312 (DR5), 01589315 (DR4), and 01589330 (DRKR). Protocols for sampling and analysis follow those of the National Ecological Observatory Network (NEON) and Cary Institute of Ecosystem Studies.

Dissolved gas measurements of streams coupled with groundwater can provide information on integrated source/sink dynamics within the urban critical zone. CO2 concentrations are driven by weathering reactions and biological activity. Nitrous oxide (N2O) is an index of nitrogen enrichment in the landscape. Methane (CH4) and dissolved nitrogen:argon (N2:Ar) indicate presence of anaerobic conditions and nitrogen sinks. Gas data can help determine the interplay between nitrogen inputs and processing in the urban critical zone. For example, high N2O (and nitrate) can provide evidence of a shift from a source-controlled to transport-controlled system. Low N2O (and low nitrate) along with high CH4 and high dissolved N2:Ar also can provide evidence of a similar shift but would suggest the presence of significant anaerobic sinks with implications about water pathways through the urban critical zone.

Subject Keywords

Coverage

Spatial

Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
North Latitude
39.3388°
East Longitude
-76.7143°
South Latitude
39.2837°
West Longitude
-76.7675°

Temporal

Start Date:
End Date:

Content

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Related Resources

This resource belongs to the following collections:
Title Owners Sharing Status My Permission
Dead Run Data Collection Claire Welty · John Lagrosa IV  Discoverable &  Shareable Open Access

Credits

Funding Agencies

This resource was created using funding from the following sources:
Agency Name Award Title Award Number
National Science Foundation Frameworks:Collaborative Proposal: Software Infrastructure for Transformative Urban Sustainability Research 1931283
National Science Foundation Collaborative Research: Network Cluster: Urban Critical Zone processes along the Piedmont-Coastal Plain transition 2012340
National Science Foundation Collaborative Research: Network Cluster: Urban Critical Zone processes along the Piedmont-Coastal Plain transition 2012336

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
Daniel Sebrosky University of Maryland Baltimore County MD, US
Maryam Rishehri University of Maryland Baltimore County Maryland, US
Mitchell Richards University of Maryland, Baltimore County Maryland, US
Amalie Rebstock University of Maryland, Baltimore County Baltimore, MD, USA

How to Cite

Groffman, P., M. McWilliams, L. Martel, C. Welty (2024). Trace gas data for Dead Run, Baltimore County, MD, USA, HydroShare, http://www.hydroshare.org/resource/b170dbd129c54a628da8e199fd23c6a4

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

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

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