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Eight Mile Lake Research Watershed, Carbon in Permafrost Experimental Heating Research (CiPEHR): Methane chamber flux data, 2016 - 2018

General Information
Data Package:
Local Identifier:knb-lter-bnz.727.2
Title:Eight Mile Lake Research Watershed, Carbon in Permafrost Experimental Heating Research (CiPEHR): Methane chamber flux data, 2016 - 2018
Alternate Identifier:DOI PLACE HOLDER
Abstract:

The Carbon in Permafrost Experimental Heating Research (CiPEHR) project addresses the following questions: 1) Does ecosystem warming cause a net release of C from the ecosystem to the atmosphere?, 2) Does the decomposition of old C, that comprises the bulk of the soil C pool, influence ecosystem C loss?, and 3) How do winter and summer warming alone, and in combination, affect ecosystem C exchange? We are answering these questions using a combination of field and laboratory experiments to measure ecosystem carbon balance and radiocarbon isotope ratios at a warming experiment located in an upland tundra field site near Healy, Alaska in the foothills of the Alaska Range. This dataset includes methane flux data from winter warming, summer, warming, and control treatment plots.

Short Name:knb-lter-bnz.727.2
Publication Date:2019-10-22
For more information:
Visit: http://www.lter.uaf.edu/data/data-detail/id/727

Time Period
Begin:
2016-08-01
End:
2018-08-01

People and Organizations
Contact:Data Manager (Bonanza Creek LTER) [  email ]
Creator:Taylor, Meghan A. (Postdoctoral Researcher )
Creator:Celis, Gerardo (Postdoctoral Research Associate)
Creator:Ledman, Justin (Site Technician)
Creator:Mauritz, Marguerite (Research Associate Professor)
Creator:Natali, Susan M.N. (Affiliate Scientist)
Creator:Pegoraro, Elaine F. (Ph.D. Student)
Creator:Schaedel, Christina (Assistant Research Professor)
Creator:Schuur, Edward A.G. (Senior Investigator)
Organization:Bonanza Creek LTER

Data Entities
Data Table Name:
727_EML_AK_CiPEHR_MethaneChamberFlux_2016-2018.csv
Description:
This dataset contains methane fluxes measured hourly on a weekly - biweekly basis
Detailed Metadata

Data Entities

Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/knb-lter-bnz/727/2/12ad3cb34ab9b2ac388382e4c0475693
Name:727_EML_AK_CiPEHR_MethaneChamberFlux_2016-2018.csv
Description:This dataset contains methane fluxes measured hourly on a weekly - biweekly basis
Number of Columns:9

Table Structure
Object Name:727_EML_AK_CiPEHR_MethaneChamberFlux_2016-2018.csv
Text Format:
Number of Header Lines:1
Record Delimiter:\n
Line Delimiter:\n
Orientation:column
Simple Delimited:
Field Delimiter:,

Table Column Descriptions
 yearmonthweekfenceplotgroupflux_mg_m2_hrflux_mg_m2_dayflux_mg_m2_week
Column Name:year  
month  
week  
fence  
plot  
group  
flux_mg_m2_hr  
flux_mg_m2_day  
flux_mg_m2_week  
Definition:year measuredmonth measuredweek measuredfence IDplot IDdata groupinghourly flux ratecumulative daily flux cumulative weekly flux
Storage Type:integer  
integer  
integer  
string  
string  
string  
float  
float  
float  
Measurement Type:ratioratiorationominalnominalnominalratioratioratio
Measurement Values Domain:
Unityyyy
Typereal
Unitdimensionless
Typereal
Unitdimensionless
Typereal
Definitionfence ID
Definitionplot ID
Allowed Values and Definitions
Enumerated Domain 
Code Definition
Codemg
Definition miligrams; hr = hour
Source
Unitdimensionless
Typereal
Unitdimensionless
Typereal
Unitdimensionless
Typereal
Missing Value Code:                  
Accuracy Report:                  
Accuracy Assessment:                  
Coverage:                  
Methods:                  

Data Package Usage Rights

Data Use

This work has been produced as part of the Long Term Ecological Research Program and data users should adhere to the Data Use Agreement of the Long Term Ecological Research Network.

Citation

It is considered a matter of professional ethics to acknowledge the work of other scientists. Thus, the Data User should properly cite the Data Set in any publications or in the metadata of any derived data products that were produced using the Data Set. Citation should take the following general form: Creator(s), Year of Data Publication, Title of Dataset, Publisher, Dataset identifier, Dataset URL, Dataset DOI. For Example: Van Cleve, Keith; Chapin, F. Stuart; Ruess, Roger W. 2016. Bonanza Creek Experimental Forest: Hourly Temperature (sample, min, max) at 50 cm and 150 cm from 1988 to Present, Bonanza Creek LTER - University of Alaska Fairbanks. BNZ:1, http://www.lter.uaf.edu/data/data-detail/id/1. doi:10.6073/pasta/725db90d86686be13e6d6b2da5d61217.

Acknowledgement

The Data User should acknowledge any institutional support or specific funding awards referenced in the metadata accompanying this dataset in any publications where the Data Set contributed significantly to its content. Acknowledgements should identify the supporting party, the party that received the support, and any identifying information such as grant numbers. For example: Data are provided by the Bonanza Creek LTER, a partnership between the University of Alaska Fairbanks, and the U.S. Forest Service. Significant funding for collection of these data was provided by the National Science Foundation Long-Term Ecological Research program (NSF Grant numbers DEB-1636476, DEB-1026415, DEB-0620579, DEB-0423442, DEB-0080609, DEB-9810217, DEB-9211769, DEB-8702629) and by the USDA Forest Service, Pacific Northwest Research Station (Agreement # RJVA-PNW-01-JV-11261952-231).

Notification

The Data User will notify the Data Set Contact when any derivative work or publication based on or derived from the Data Set is distributed.

Collaboration

The Data Set has been released in the spirit of open scientific collaboration. Data Users are thus strongly encouraged to consider consultation, collaboration and/or co-authorship with the Data Set Creator.

Disclaimer

While substantial efforts are made to ensure the accuracy of data and documentation contained in this Data Set, complete accuracy of data and metadata cannot be guaranteed. All data and metadata are made available in its present condition. The Data User holds all parties involved in the production or distribution of the Data Set harmless for damages resulting from its use or interpretation.

Keywords

By Thesaurus:
Vegetationmethane, fluxes

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:

Experimental Design

The study site at the Eight Mile Lake (EML) watershed is located in the northern foothills of the Alaska Range. While permafrost thaw can sometimes result in water ponding, depending on local topography, this landscape consists largely of relatively well-drained uplands. The CiPEHR experiments were established in 2008 to complement research along a natural permafrost thaw gradient, at an adjacent site. At the permafrost-thaw gradient site permafrost temperature has been monitored annually in a 30-m-deep borehole since1985, before the permafrost started to thaw. There are two experimental warming treatments at the CiPEHR project: Winter warming (WW) increases soil temperature and ground thaw using snow fences; Summer warming (SW) increases growing season air temperature using open top chambers. The warming treatments are applied in a blocked split-plot design to evaluate the seperate and combined effects of winter and summer warming. Permafrost thaw induced by experimental soil (winter) warming has caused subsidence within the footprint of the experiment. Heterogeneous microtopography as a result of subsidence has caused variable moisture conditions with some plots periodically or continuously flooded during the thawed period and some plots remaining dry.

Methods

FIELD: Methane flux measurements were made at collars adjacent to CO2 autochambers within the same plot footprint. Collars are made of 25 cm PVC that were permanently installed 8 cm into the soil layer. Surface flux measurements were made with a Los Gatos Research (LGR), Ultra-Portable Methane Analyzer (UMA), (Model number 915-0001, Los Gatos, Research, Palo Alto, CA, USA). We sealed the collars with an opaque 10 L chamber and recirculated air between the UMA and chamber via inlet and outlet tubing for 15 minutes.

Sampling Area and Study Extent
Sampling Description:

Sampling Frequency

Weekly

Sampling Extent:
Sampling Site: 
Description:EML -- Tussock tundra at treeline with permafrost thaw and thermokarst. This site is in the Eight Mile Lake Watershed, west of the town of Healy on Stampede Road, Interior Alaska. This area contains three sites on a permafrost thaw gradient and a nearby experimental snow fence manipulation.. Site alternate names:
Site Coordinates:
Longitude (degree): -149.239569Latitude (degree): 63.880708

Time Period
Begin:
2016-08-01
End:
2018-08-01

People and Organizations

Publishers:
Organization:Bonanza Creek LTER
Address:
Boreal Ecology Cooperative Research Unit ,
University of Alaska Fairbanks,
P.O. Box 756780 ,
Fairbanks, AK 99775 USA
Phone:
907-474-6364 (voice)
Phone:
907-474-6251 (fax)
Creators:
Individual: Meghan A. Taylor
Position:Postdoctoral Researcher
Address:
Yale School of Forestry & Environmental Science,
New Haven, CT 06511 United States
Email Address:
meghan.taylor@yale.edu
Web Address:
https://bradfordlab.yale.edu/lab-profiles
Individual: Gerardo Celis
Position:Postdoctoral Research Associate
Address:
Northern Arizona University: Ecosystem Science and Society Center (ECOSS) PO Box 5620,
Flagstaff, AZ 86011 United States
Phone:
352-328-5031 (voice)
Email Address:
gerardo.celis@nau.edu
Web Address:
https://www2.nau.edu/schuurlab-p/Schaedel.html
Individual: Justin Ledman
Position:Site Technician
Address:
PO Box 18 Healy, AK 99743,
Healy, AK 99743 United States
Phone:
651-895-0474 (voice)
Email Address:
justin.ledman@gmail.com
Individual: Marguerite Mauritz
Position:Research Associate Professor
Address:
University of Texas, El Paso, 500 W University,
El Paso, TX 79902 United States
Email Address:
memauritz@utep.edu
Web Address:
https://expertise.utep.edu/profiles/memauritz
Individual: Susan M.N. Natali
Position:Affiliate Scientist
Address:
Woods Hole Research Center, 149 Woods Hole Road,
Falmouth, MA 02540 United States
Phone:
508-444-1560 (voice)
Email Address:
snatali@whrc.org
Web Address:
http://www.whrc.org/about/cvs/snatali.html
Individual: Elaine F. Pegoraro
Position:Ph.D. Student
Address:
Center for Ecosystem Science and Society, bulding 17, room 310,
Flagstaff, AZ 86011 United States
Phone:
407-412-8881 (voice)
Email Address:
epegoraro89@gmail.com
Web Address:
https://www2.nau.edu/schuurlab-p/
Individual: Christina Schaedel
Position:Assistant Research Professor
Address:
Northern Arizona University: Ecosystem Science and Society Center (ECOSS) PO Box 5620,
Flagstaff, AZ 86011 United States
Phone:
928-523-9588 (voice)
Email Address:
christina.schaedel@nau.edu
Web Address:
https://www2.nau.edu/schuurlab-p/Schaedel.html
Individual: Edward A.G. Schuur
Position:Senior Investigator
Address:
Northern Arizona University: Ecosystem Science and Society Center (ECOSS) PO Box 5620,
Flagstaff, AZ 86011 United States
Phone:
(928) 523-8344 (voice)
Email Address:
Ted.Schuur@nau.edu
Web Address:
https://www2.nau.edu/schuurlab-p/
Organization:Bonanza Creek LTER
Address:
Boreal Ecology Cooperative Research Unit ,
University of Alaska Fairbanks,
P.O. Box 756780 ,
Fairbanks, AK 99775 USA
Phone:
907-474-6364 (voice)
Phone:
907-474-6251 (fax)
Email Address:
uaf-bnz-im-team@alaska.edu
Web Address:
http://www.lter.uaf.edu
Contacts:
Organization:Bonanza Creek LTER
Position:Data Manager
Address:
Boreal Ecology Cooperative Research Unit ,
University of Alaska Fairbanks,
P.O. Box 756780 ,
Fairbanks, AK 99775 USA
Phone:
907-474-6364 (voice)
Phone:
907-474-6251 (fax)
Email Address:
uaf-bnz-im-team@alaska.edu
Web Address:
http://www.lter.uaf.edu
Metadata Providers:
Organization:Bonanza Creek LTER
Position:Data Manager
Address:
Boreal Ecology Cooperative Research Unit ,
University of Alaska Fairbanks,
P.O. Box 756780 ,
Fairbanks, AK 99775 USA
Phone:
907-474-6364 (voice)
Phone:
907-474-6251 (fax)
Email Address:
uaf-bnz-im-team@alaska.edu
Web Address:
http://www.lter.uaf.edu

Temporal, Geographic and Taxonomic Coverage

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

Time Period
Begin:
2016-08-01
End:
2018-08-01
Sampling Site: 
Description:Dataset geographic description information is unavailable. {datafile/geoCoverage is empty}
Site Coordinates:
Longitude (degree): -149.225556Latitude (degree): 63.883056

Project

Parent Project Information:

Title:The Bonanza Creek LTER
Personnel:
Individual: Keith Van Cleve
Organization:Bonanza Creek LTER
Position:Lead Principal Investigator
Role:Principal Investigator
Individual: F.S. Stuart Chapin
Organization:Bonanza Creek LTER
Position:Lead Principal Investigator
Address:
Department of Biology and Wildlife; Institute of Arctic Biology: University of Alaska Fairbanks 193 Arctic Health P.O. Box 757000,
Fairbanks, AK 99775 United States
Phone:
(907) 455-6408 (voice)
Phone:
(907) 474-6967 (fax)
Email Address:
terry.chapin@alaska.edu
Web Address:
http://terrychapin.org/
Role:Principal Investigator
Individual: Roger W. Ruess
Organization:Bonanza Creek LTER
Position:Lead Principal Investigator
Address:
Institute of Arctic Biology University of Alaska Fairbanks P.O. Box 757000,
Fairbanks, AK 99775-0180 United States
Phone:
(907) 474-7153 (voice)
Phone:
(907) 474-6967 (fax)
Email Address:
rwruess@alaska.edu
Web Address:
http://www.iab.uaf.edu/~roger_ruess/
Role:Principal Investigator
Funding:

NSF Grant numbers DEB-1636476, DEB-1026415, DEB-0620579, DEB-0423442, DEB-0080609, DEB-9810217, DEB-9211769, DEB-8702629

USDA Forest Service, Pacific Northwest Research Station (Agreement # RJVA-PNW-01-JV-11261952-231)

Maintenance

Maintenance:
Description:

corrections

Methane fluxes were calculated using a linear slope fitting technique of 5 minutes of the measured data.

additional

Instrumentation: Los Gatos Research (LGR), Ultra-Portable Methane Analyzer (UMA), (Model number 915-0001, Los Gatos, Research, Palo Alto, CA, USA)

Status

Completed

Frequency:
Other Metadata

Additional Metadata

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