Data Package Metadata View Summary

Biogeochemical and physical controls on methane fluxes from two ferruginous meromictic lakes

General Information

Data Package:
Local Identifier:	edi.318.1
Title:	Biogeochemical and physical controls on methane fluxes from two ferruginous meromictic lakes
Alternate Identifier:	DOI PLACE HOLDER
Abstract:	Data was collected at Brownie Lake in Minneapolis, MN, USA and at Canyon Lake in the Upper Peninsula of MI, USA. The methane flux, or the amount of methane entering the atmosphere over a given area per time, was assessed at Brownie Lake and Canyon Lake. Sampling of Brownie Lake during geochemical characterization revealed that the methane flux out of the lake was much higher than Canyon Lake, as well as other ferruginous meromictic lakes used as geochemical analogs for early Earth’s ferruginous oceans. The dataset here was used to discern why the methane flux out of Brownie Lake was high. Brownie Lake was sampled in May, July and September of 2017 and June 2018. Canyon Lake was sampled in June and September 2017 and May 2018. We used various limnological probes and sensors (LDO sensor, Hydrolab multiprobe) to collect water column profiles (temperature, dissolved oxygen, specific conductance, chlorophyll a, pH). We also analyzed water samples (cations, anions, CH4, DIC) using ion chromatography and ICP-MS and measured isotopes (CH4, DIC) utilizing isotope ratio mass spectrometry. The methane flux was constrained in two ways: taking direct samples from the surface of each lake using floating static flux chambers, which were measured by gas chromatography, and estimated from geochemical reaction-transport modeling based on the diffusional profiles of methane and other dissolved species throughout the water column.
Publication Date:	2019-09-04

Time Period

Begin:

2017-04-01

End:

2018-06-01

People and Organizations
Contact:	Lambrecht, Nicholas (Iowa State University) [ email ]
Creator:	Lambrecht, Nicholas (Iowa State University)
Creator:	Katsev, Sergei (University of Minnesota Duluth; Large Lakes Observatory)
Creator:	Wittkop, Chad (Minnesota State University Mankato)
Creator:	Hall, Steven J. (Iowa State University)
Creator:	Sheik, Cody S. (University of Minnesota Duluth; Large Lakes Observatory)
Creator:	Picard, Aude (University of Nevada Las Vegas)
Creator:	Fakhraee, Mojtaba (Yale University)
Creator:	Swanner, Elizabeth D. (Iowa State University)

Data Entities
Data Table Name:	Methane flux data from two Midwestern lakes
Description:	Methane flux data from two Midwestern lakes

Detailed Metadata

Data Entities

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/318/1/d980808bf9436bff6aa8441c16ae0c33
Name:	Methane flux data from two Midwestern lakes
Description:	Methane flux data from two Midwestern lakes
Number of Records:	174
Number of Columns:	27

Table Structure

Object Name:

methane_data_Lambrecht.csv

Size:

25826 bytes

Authentication:

f01b835dde03a0e5daee372a981ad9d3 Calculated By MD5

Text Format:

Number of Header Lines:

Record Delimiter:

\r\n

Orientation:

column

Simple Delimited:

Field Delimiter:

Table Column Descriptions

Column Name:

Lake

Latitude_Direction

Latitude_Degrees

Latitude_Minutes

Latitude_Seconds

Longitude_Direction

Longitude_Degrees

Longitude_Minutes

Longitude_Seconds

Sampling_Month

Sampling_Year

Depth

Oxygen

Chlorophyll_a

Dissolved_Iron

Dissolved_Manganese

Sulfate

Nitrate

Dissolved_Methane

13_Carbon_Isotope_Dissolved_Methane

DIC

13_Carbon_Isotope_DIC

Euryarchaeota_Relative_Abundance

Bathyarchaeota_Relative_Abundance

Gammaproteobacteria_Relative_Abundance

Alphaproteobacteria_Relative_Abundance

Methylacidiphilaceae_Relative_Abundance

Definition:

This column describes which lake the data in the row represents

Latitude direction of the lake

Latitude partial coordinates

Longitude direction of the lake

Longitude partial coordinates

Month during which sampling took place

Year during which sampling took place

Depth (from the surface) at which samples were collected

Dissolved oxygen

Concentration of chlorophyll a at depth

Concentration of dissolved iron at depth

Concentration of dissolved manganese at depth

Concentration of sulfate at depth

Concentration of nitrate at depth

Concentration of dissolved methane at depth

13C isotope signature of methane in the water column at depth

Concentration of Dissolved Inorganic Carbon at depth

13C isotope signature of Dissolved Inorganic Carbon in the water column at depth

Relative abundance of the phylum Euryarchaeota at depth

Relative abundance of the phylum Bathyarchaeota at depth

Relative abundance of the class Gammaproteobacteria at depth

Relative abundance of the class Alphaproteobacteria at depth

Relative abundance of the family Methylacidiphilaceae at depth

Storage Type:

string

float

string

float

string

date

float

Measurement Type:

nominal

ratio

nominal

ratio

nominal

dateTime

ratio

Measurement Values Domain:

Definition

This column describes which lake the data in the row represents

Definition

Latitude direction of the lake

Unit	dimensionless
Type	natural
Min	44
Max	46

Unit	dimensionless
Type	natural
Min	49
Max	58

Unit	dimensionless
Type	real
Min	4.48
Max	58.07

Definition

Longitude direction of the lake

Unit	dimensionless
Type	natural
Min	87
Max	93

Unit	dimensionless
Type	natural
Min	19
Max	55

Unit	dimensionless
Type	real
Min	14.86
Max	26.67

Definition

Month during which sampling took place

Format	YYYY
Precision

Unit	meter
Type	real
Min	1
Max	21.5

Unit	microMolar
Type	real
Min	0
Max	338.77

Unit	microgramsPerLiter
Type	real
Min	1.09
Max	73.98

Unit	microMolar
Type	real
Min	0
Max	1689.06

Unit	microMolar
Type	real
Min	0.06
Max	142.44

Unit	microMolar
Type	real
Min	0
Max	86.5

Unit	microMolar
Type	real
Min	0
Max	8.1

Unit	microMolar
Type	real
Min	0
Max	1982.5

Unit	perMill
Type	real
Min	-73.5
Max	0

Unit	microMolar
Type	real
Min	0.2
Max	14.1

Unit	perMill
Type	real
Min	-20.81
Max	1.64

Unit	percent
Type	real
Min	0
Max	12.72

Unit	percent
Type	real
Min	0
Max	1.45

Unit	percent
Type	real
Min	0.12
Max	10.47

Unit	percent
Type	real
Min	0
Max	1.14

Unit	percent
Type	real
Min	0
Max	0.48

Missing Value Code:

Code	NA
Expl	Not Available

Code	NA
Expl	Not Available

Code	NA
Expl	Not Available

Code	NA
Expl	Not Available

Code	NA
Expl	Not Available

Code	NA
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Code	NA
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Code	NA
Expl	Not Available

Code	NA
Expl	Not Available

Code	NA
Expl	Not Available

Code	NA
Expl	Not Available

Code	NA
Expl	Not Available

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:
(No thesaurus)	methane flux, meromictic, ferruginous
LTER Controlled Vocabulary	lakes

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:

Methods can be found in a previous paper entitled, “Geochemical Characterization of Two Ferruginous Meromictic Lakes in the Upper Midwest, USA” (Lambrecht, N., Wittkop, C., Katsev, S., Fakhraee, M., & Swanner, E. D. (2018). Geochemical Characterization of Two Ferruginous Meromictic Lakes in the Upper Midwest, USA.

Journal of Geophysical Research: Biogeosciences

123

(10), 3403-3422.), as well as a paper that has been accepted in Geobiology, “Biogeochemical and physical controls on methane fluxes from two ferruginous meromictic lakes” (citation to follow).

People and Organizations

Creators:

Individual:

Nicholas Lambrecht

Organization:

Iowa State University

Email Address:

nlambrec@iastate.edu

Individual:

Sergei Katsev

Organization:

University of Minnesota Duluth; Large Lakes Observatory

Email Address:

skatsev@d.umn.edu

Individual:

Chad Wittkop

Organization:

Minnesota State University Mankato

Email Address:

Chad.wittkop@mnsu.edu

Individual:

Steven J. Hall

Organization:

Iowa State University

Email Address:

stevenjh@iastate.edu

Individual:

Cody S. Sheik

Organization:

University of Minnesota Duluth; Large Lakes Observatory

Email Address:

cssheik@d.umn.edu

Individual:

Aude Picard

Organization:

University of Nevada Las Vegas

Email Address:

Audeamelie.picard@unlv.edu

Individual:

Mojtaba Fakhraee

Organization:

Yale University

Email Address:

Mojtaba.fakhraee@yale.edu

Individual:

Elizabeth D. Swanner

Organization:

Iowa State University

Email Address:

eswanner@iastate.edu

Contacts:

Individual:

Nicholas Lambrecht

Organization:

Iowa State University

Email Address:

nlambrec@iastate.edu

Temporal, Geographic and Taxonomic Coverage

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

Time Period

Begin:

2017-04-01

End:

2018-06-01

Geographic Region:

Description:

Two Midwestern ferruginous meromictic lakes

Bounding Coordinates:

Northern:	46.835316	Southern:	44.966088
Western:	-87.919807	Eastern:	-93.326025

Project

Parent Project Information:

Title:

Biosignatures of coupled iron and carbon cycling in ferruginous lakes

Personnel:

Individual:

Elizabeth D. Swanner

Organization:

Iowa State University

Email Address:

eswanner@iastate.edu

Role:

Principal Investigator

Funding:

NSF: EAR - 1660691

Related Project:

Title:

Biosignatures of coupled iron and carbon cycling in ferruginous lakes

Personnel:

Individual:

Chad Wittkop

Organization:

Minnesota State University Mankato

Email Address:

Chad.wittkop@mnsu.edu

Role:

Principal Investigator

Funding:

NSF: EAR - 1660761

Related Project:

Title:

Biosignatures of coupled iron and carbon cycling in ferruginous lakes

Personnel:

Individual:

Sergei Katsev

Organization:

University of Minnesota Duluth; Large Lakes Observatory

Email Address:

skatsev@d.umn.edu

Role:

Principal Investigator

Funding:

NSF: EAR - 1660873

Related Project:

Title:

No project title to report

Personnel:

Individual:

Chad Wittkop

Organization:

Minnesota State University Mankato

Email Address:

Chad.wittkop@mnsu.edu

Role:

Principal Investigator

Funding:

Huron Mountain Wildlife Foundation: 2016

Related Project:

Title:

No project title to report

Personnel:

Individual:

Elizabeth D. Swanner

Organization:

Iowa State University

Email Address:

eswanner@iastate.edu

Role:

Principal Investigator

Funding:

Huron Mountain Wildlife Foundation: 2017

Related Project:

Title:

Facility Support: National Lacustrine Core Facility (LacCore)

Personnel:

Individual:	Emi Ito
Role:	Principal Investigator

Funding:

NSF: IF-0949962

Maintenance

Maintenance:

Description:	complete
Frequency:

Other Metadata

Additional Metadata

additionalMetadata
        |___text '\n    '
        |___element 'metadata'
        |     |___text '\n      '
        |     |___element 'unitList'
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'microMolar'
        |     |     |     |  \___attribute 'multiplierToSI' = '1000000'
        |     |     |     |  \___attribute 'name' = 'microMolar'
        |     |     |     |  \___attribute 'parentSI' = 'molar'
        |     |     |     |  \___attribute 'unitType' = 'concentration'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'microMolar'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |        \___attribute 'id' = 'perMill'
        |     |     |        \___attribute 'name' = 'perMill'
        |     |     |        \___attribute 'unitType' = 'concentration'
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |        \___attribute 'id' = 'percent'
        |     |     |        \___attribute 'name' = 'percent'
        |     |     |___text '\n      '
        |     |___text '\n    '
        |___text '\n  '

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Data Package Metadata View Summary

Biogeochemical and physical controls on methane fluxes from two ferruginous meromictic lakes

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

Biogeochemical and physical controls on methane fluxes from two ferruginous meromictic lakes

+/- 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