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Water isotope data for Pond Branch at Oregon Ridge, Baltimore County, MD, USA

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Created: May 28, 2023 at 3:35 a.m.
Last updated: May 28, 2023 at 4:06 a.m.
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Sharing Status: Discoverable
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This resource includes water isotope data from Pond Branch at Oregon Ridge, Baltimore County, MD, USA. Stream grab samples are collected weekly to biweekly. Samples are analyzed for d18O and d2H on a Picarro L 2120-i water isotope analyzer at UMBC. Data are collected for the purpose of (1) providing a forested reference site for cross-site comparison with urban sites in the Urban CZ cluster; and (2) calculation of mean watershed transit times by analysis in combination with local precipitation water isotope data. The stream sampling site is co-located with USGS stream gaging station 01583570 This data set is part of the Urban Critical Zone Cluster in the NSF Critical Zone Collaborative Network.

Subject Keywords



Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
Place/Area Name:
Oregon Ridge Park, Hunt Valley, MD


Start Date:
End Date:


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Related Resources

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


Funding Agencies

This resource was created using funding from the following sources:
Agency Name Award Title Award Number
National Science Foundation Collaborative Research: Network Cluster: Urban Critical Zone processes along the Piedmont-Coastal Plain transition 2012340


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
Mary McWilliams University of Maryland Baltimore County Maryland, US
John J. Lagrosa IV Center for Urban Environmental Research and Education at the University of Maryland, Baltimore County Maryland, US
Michael Hanes Cary Institute of Ecosystem Studies Millbrook, NY

How to Cite

Welty, C., P. Groffman (2023). Water isotope data for Pond Branch at Oregon Ridge, Baltimore County, MD, USA, HydroShare,

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


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