Data Package Metadata View Summary

Baltimore Ecosystem Study: Stream metabolism data for core sites in Gwynns Falls

General Information

Data Package:
Local Identifier:	knb-lter-bes.2070.190
Title:	Baltimore Ecosystem Study: Stream metabolism data for core sites in Gwynns Falls
Alternate Identifier:	DOI PLACE HOLDER
Abstract:	An ongoing component of the Baltimore urban long-term ecological research (LTER) project (Baltimore Ecosystem Study, BES) is the use of the watershed approach and monitoring of stream water quality to evaluate the integrated ecosystem functioning of Baltimore. The LTER research has focused on the Gwynns Falls watershed, which spans a gradient from highly urban, urban-residential, and suburban zones. In addition, a forested watershed serves as a reference. The long-term sampling network includes four longitudinal sampling sites along the Gwynns Falls mainstem, as well as several small (40-100 ha) watershed within or near the Gwynns Falls, providing data on water quality in different land use zones of the watersheds. Each study site is continuously monitored for discharge and is sampled weekly for water chemistry. Those data are available elsewhere on the BES website. We are interested in studying the bioreactivity of streams in our watersheds in an attempt to quantify how streams themselves may affect or be affected by water quality. To assess the bioreactivity of streams, we measure whole stream metabolism, which is an integrative metric which quantifies the production and consumption of energy by a stream ecosystem. Stream metabolism represents how energy is created (primary production) and used (respiration) within a stream; it can be thought of as a stream breathing, with primary production being similar to an inhale, and respiration as an exhale. We are monitoring stream metabolism in each of our long-term water quality monitoring stations by deploying sensors that record dissolve oxygen and temperature of the stream every five minutes, and we also have deployed light sensors to record irradiance every five minutes at long-term BES water chemistry streams, which is needed for metabolism modeling. In addition, each dissolved oxygen sensor is located near a USGS gage which estimates discharge every 15 minutes. We used USGS manual discharge estimations linked with channel geometry measurements to develop a unique discharge-stream depth relationship (contact AJ Reisinger for details). The combination of the USGS discharge data and our discharge-depth relationship allows us to estimate average daily discharge and depth. We have included these data as well as dissolved oxygen, temperature, and PAR, allowing metabolism to be scaled on an areal basis. Primary production and respiration of streams integrate all biological activity in a stream, and therefore are good metrics to assess the state of an ecosystem. These metrics can also be used to predict other ecosystem functions. This dataset includes all information needed for whole-stream metabolism modeling using the streammetabolizer R package. Data will updated as it becomes available from the core stream study sites (see http://md.water.usgs.gov/BES for a detailed description of these sites).
Publication Date:	2020-03-31

Time Period

Begin:

2012-10-24

End:

2016-11-19

People and Organizations
Contact:	Cary Institute Of Ecosystem Studies [ email ]
Creator:	Reisinger, Alexander (Cary Institute Of Ecosystem Studies)
Creator:	Rosi, Emma (Cary Institute Of Ecosystem Studies)

Data Entities
Data Table Name:	Stream metabolism data for core sites
Description:	Stream metabolism data for core sites

Detailed Metadata

Data Entities

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/knb-lter-bes/2070/190/2779d4f6e6af590c9916c2e42c1a5320
Name:	Stream metabolism data for core sites
Description:	Stream metabolism data for core sites
Number of Records:	574304
Number of Columns:	11

Table Structure

Object Name:

stream-metabolism-core-sites-bes.csv

Size:

43833330 bytes

Authentication:

9104d7bf121f757e5a0f683e6a973c5f Calculated By MD5

Text Format:

Number of Header Lines:

Record Delimiter:

\r\n

Orientation:

column

Simple Delimited:

Field Delimiter:

Table Column Descriptions

Column Name:

Site

Date

Time

tempC

DO_meas

DO_sat

atmo_pressure

salinity

Definition:

Sampling Site

Date

Time of day

Photosynthetically active radiation

temperature

measured dissolved oxygen concentration (mg/l)

concentration of dissolved oxygen at 100% saturation with the atmosphere (mg/l)

atmospheric pressure (atm) - if this is not known it can be estimated based upon elevation

salinity - expressed in grams/kg (Parts per thousand) - this should be negligible for freshwater (less than 0.5 ppt)

discharge expressed in liters per second

Depth in meters

Storage Type:

string

date

float

string

float

Measurement Type:

nominal

dateTime

ratio

nominal

ratio

Measurement Values Domain:

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	barn
Definition	Baisman Run at Ivy Hill Road
Source

Code Definition

Code	drkr
Definition	Dead Run at Kernan Drive
Source

Code Definition

Code	gfcp
Definition	Gwynns Falls at Caroll Park
Source

Code Definition

Code	gfgb
Definition	Gwynns Falls at Gwynnbrook Avenue (Delight)
Source

Code Definition

Code	pobr
Definition	Pond Branch forested reference site
Source

Code Definition

Code	gfvn
Definition	Gwynns Falls at Villanova
Source

Code Definition

Code	gfgl
Definition	Gwynns Falls at Glyndon
Source

Code Definition

Code	mcdn
Definition	Gwynns Falls Tributary at McDonogh
Source

Format	YYYY-MM-DD
Precision

Format	hh:mm
Precision

Unit	centimeter
Type	real
Min	0
Max	2432.95

Unit	celsius
Type	real
Min	0.46
Max	36.53

Definition

measured dissolved oxygen concentration (mg/l)

Unit	milligramsPerLiter
Type	real
Min	6.68
Max	14.15

Unit	atmosphere
Type	real
Min	0.98
Max	1

Unit	gramsPerKilogram
Type	whole
Min	0
Max	0

Unit	litersPerSecond
Type	real
Min	0
Max	114400.06

Unit	meter
Type	real
Min	0
Max	1.75

Missing Value Code:

Code	.
Expl	This code signifies a missing value

Code	.
Expl	This code signifies a missing value

Code	.
Expl	This code signifies a missing value

Code	.
Expl	This code signifies a missing value

Code	NA
Expl	NA Indicates a value was not obtained

Code	NA
Expl	NA Indicates a value was not obtained

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Package Usage Rights

This information is released under the Creative Commons license - Attribution - CC BY (https://creativecommons.org/licenses/by/4.0/). The consumer of these data ("Data User" herein) is required to cite it appropriately in any publication that results from its use. The Data User should realize that these data may be actively used by others for ongoing research and that coordination may be necessary to prevent duplicate publication. The Data User is urged to contact the authors of these data if any questions about methodology or results occur. Where appropriate, the Data User is encouraged to consider collaboration or co-authorship with the authors. The Data User should realize that misinterpretation of data may occur if used out of context of the original study. While substantial efforts are made to ensure the accuracy of data and associated documentation, complete accuracy of data sets cannot be guaranteed. All data are made available "as is." The Data User should be aware, however, that data are updated periodically and it is the responsibility of the Data User to check for new versions of the data. The data authors and the repository where these data were obtained shall not be liable for damages resulting from any use or misinterpretation of the data. Thank you.

Keywords

By Thesaurus:
LTER Controlled Vocabulary	streams, metabolism, oxygen, gross primary production, respiration, light , discharge, depth
BES Vocabulary	Baltimore, MD, Maryland , DC, Baltimore-Washington , Chesapeake Bay

Methods and Protocols

These methods, instrumentation and/or protocols apply to all data in this dataset:

Methods and protocols used in the collection of this data package

Description:

Dissolved oxygen and temperature are logged every five minutes on a miniDOT (PME, Inc.) deployed at a representative location in the stream. Irradiance (I) is recorded as photosynthetically active radiation (PAR) using either Odyssey loggers (Dataflow Systems Limited, Christchurch, NZ) or HOBO Pendant Temperature/Light loggers (Onset Computer Corporation, Bourne, MA, USA) deployed at a representative location near the stream. Elevation is estimated using Google Earth.

Average daily discharge is downloaded from USGS gauging stations located at each individual study site. We developed site-specific depth-discharge relationships using USGS manual discharge measurements with channel geometry. These specific relationships are then used to back-calculate average stream depth from daily average Q downloaded from USGS.

Beginning in 2016, miniDOTs were deployed continuously at each long-term BES water chemistry site. During continuous deployment, miniDOTs are cleaned weekly, and downloaded quarterly. miniDOTs are calibrated annually per manufacturer recommendation. miniDOTs are logged together in supersaturated water for one hour prior to and after deployment. This equilibration period allows for any drift correction over the course of the deployment.

People and Organizations

Creators:

Individual:

Alexander Reisinger

Organization:

Cary Institute Of Ecosystem Studies

Email Address:

reisingera@caryinstitute.org

Id:

https://orcid.org/0000-0003-4096-2637

Individual:

Emma Rosi

Organization:

Cary Institute Of Ecosystem Studies

Email Address:

rosie@caryinstitute.org

Id:

https://orcid.org/0000-0002-3476-6368

Contacts:

Organization:

Cary Institute Of Ecosystem Studies

Email Address:

besim@caryinstitute.org

Temporal, Geographic and Taxonomic Coverage

Temporal, Geographic and/or Taxonomic information that applies to all data in this dataset:

Time Period

Begin:

2012-10-24

End:

2016-11-19

Sampling Site:

Description:

GFGL

Site Coordinates:

Longitude (degree):

-76.81749283

Latitude (degree):

39.471791

Sampling Site:

Description:

GFCP

Site Coordinates:

Longitude (degree):

-76.64855683

Latitude (degree):

39.27149083

Sampling Site:

Description:

GFVN

Site Coordinates:

Longitude (degree):

-76.733236

Latitude (degree):

39.34579883

Sampling Site:

Description:

GFGB

Site Coordinates:

Longitude (degree):

-76.783488

Latitude (degree):

39.44296583

Sampling Site:

Description:

POBR

Site Coordinates:

Longitude (degree):

-76.6875

Latitude (degree):

39.480297

Sampling Site:

Description:

BARN

Site Coordinates:

Longitude (degree):

-76.677969

Latitude (degree):

39.47942783

Sampling Site:

Description:

MCDN

Site Coordinates:

Longitude (degree):

-76.77044383

Latitude (degree):

39.400435

Sampling Site:

Description:

DRKR

Site Coordinates:

Longitude (degree):

-76.71676383

Latitude (degree):

39.311207

Geographic Region:

Description:

Baltimore County

Bounding Coordinates:

Northern:	39.722	Southern:	39.19
Western:	-76.528	Eastern:	-76.33

Project

Parent Project Information:

Title:

LTER: Baltimore Ecosystem Study Phase III: Adaptive Processes in the Baltimore Socio-Ecological System from the Sanitary to the Sustainable City

Personnel:

Individual:

Steward Pickett

Organization:

Baltimore Ecosystem Study

Email Address:

picketts@caryinstitute.org

Id:

https://orcid.org/0000-0002-1899-976x

Role:

Principal Investigator

Funding:

NSF: 1027188

Maintenance

Maintenance:

Description:	ongoing
Frequency:

Other Metadata

Additional Metadata

additionalMetadata
        |___text '\n    '
        |___element 'metadata'
        |     |___text '\n      '
        |     |___element 'unitList'
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'gramsPerKilogram'
        |     |     |     |  \___attribute 'multiplierToSI' = ''
        |     |     |     |  \___attribute 'name' = 'gramsPerKilogram'
        |     |     |     |  \___attribute 'parentSI' = ''
        |     |     |     |  \___attribute 'unitType' = 'massPerMass'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'grams per kilogram'
        |     |     |     |___text '\n        '
        |     |     |___text '\n      '
        |     |___text '\n    '
        |___text '\n  '

Copyright 2024 Environmental Data Initiative. This material is based upon work supported by the National Science Foundation under grants #2223103 and #2223104. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation. Please contact us with questions, comments, or for technical assistance regarding this web site or the Environmental Data Initiative. Please read our privacy policy to know what information we collect about you and to understand your privacy rights.

EDI is a collaboration between the University of New Mexico and the University of Wisconsin – Madison, Center for Limnology:

Data Package Metadata View Summary

Baltimore Ecosystem Study: Stream metabolism data for core sites in Gwynns Falls

Data Entities

Data Table

Data Package Usage Rights

Keywords

Methods and Protocols

These methods, instrumentation and/or protocols apply to all data in this dataset:

People and Organizations

Temporal, Geographic and Taxonomic Coverage

Project

Parent Project Information:

Maintenance

Additional Metadata

Recently Added

Recently Updated

Data Package Metadata View Summary

Baltimore Ecosystem Study: Stream metabolism data for core sites in Gwynns Falls

+/- Data Entities

Data Table

+/- Data Package Usage Rights

+/- Keywords

+/- Methods and Protocols

These methods, instrumentation and/or protocols apply to all data in this dataset:

+/- People and Organizations

+/- Temporal, Geographic and Taxonomic Coverage

+/- Project

Parent Project Information:

+/- Maintenance

+/- Additional Metadata

Data Entities

Data Package Usage Rights

Keywords

Methods and Protocols

People and Organizations

Temporal, Geographic and Taxonomic Coverage

Project

Maintenance

Additional Metadata