Arctic LTER

Weather at Toolik

Arctic LTER Database

Conditions of Use

The re-use of scientific data has the potential to greatly increase communication, collaboration and synthesis within and among disciplines, and thus is fostered, supported and encouraged. Permission to use this dataset is granted to the Data User free of charge subject to the following terms:

1) Acceptable use. Use of the dataset will be restricted to academic, research, educational, government, recreational, or other not-for-profit professional purposes. The Data User is permitted to produce and distribute derived works from this dataset provided that they are released under the same license terms as those accompanying this Data Set. Any other uses for the Data Set or its derived products will require explicit permission from the dataset owner.
2 ) Redistribution. The data are provided for use by the Data User. The metadata and this license must accompany all copies made and be available to all users of this Data Set. The Data User will not redistribute the original Data Set beyond this collaboration sphere.
3 ) Citation. It is considered a matter of professional ethics to acknowledge the work of other scientists. Thus, the Data User will 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, Year of Data Publication, Title of Dataset, Publisher, Dataset identifier. For example:

Shaver, G. 1989. Above ground biomass in acidic tussock tundra experimental site, 1989, Arctic LTER, Toolik, Alaska. Arctic LTER, Marine Biological Lab, Woods Hole, Ma 02543. 1989gsttbm http://ecosystems.mbl.edu/arc/terrest/biomass/index.shtml

4 ) 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 sets were provided by the Arctic LTER. This material is based upon work supported by the National Science Foundation under Grants #DEB-981022, 9211775, 8702328; #OPP-9911278, 9911681, 9732281, 9615411, 9615563, 9615942, 9615949, 9400722, 9415411, 9318529; #BSR 9019055, 8806635, 8507493.

5 ) 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. The Data User will provide the data contact with two reprints of any publications resulting from use of the Data Set and will provide copies, or on-line access to, any derived digital products. Notification will include an explanation of how the Data Set was used to produce the derived work.
6 ) 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.

By accepting this Data Set, the Data User agrees to abide by the terms of this agreement. The Data Owner shall have the right to terminate this agreement immediately by written notice upon the Data User's breach of, or non-compliance with, any of its terms. The Data User may be held responsible for any misuse that is caused or encouraged by the Data User's failure to abide by the terms of this agreement.

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 "as is". 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.

Dataset URLs:	METADATA: HTML, Rich Text, XML(EML compliant) DATA: Comma Delimited, Excel file with Metadata and data
Dataset ID:	91scpt17.3
Dataset Title:	Arctic LTER 1991: Percent moisture, bulk density, percent loss on ignition, percent organic carbon, del 13C and percent modern were measured for peat collected from soils in the Imnavait Creek watershed.
Investigator 1:
First Name:	Donald
Last Name:	Schell
Organization:
Address line 2:
Address line 3:
City:
State:
Zip Code:
Country:
Investigator 2:
First Name:	Bruce
Last Name:	Barnett
Associate Investigators:
Keywords:	Imnavait Creek, peat, percent moisture, percent organic carbon, bulk density, del 13C, percent
Abstract:	Percent moisture, bulk density, percent loss on ignition, percent organic carbon, del 13C and percent modern were measured for peat collected from soils in the Imnavait Creek watershed.
For questions about the Metadata and data contact the Investigators. For information about this web site contact:	Arctic LTER Information Manager The Ecosystems Center Marine Biological Lab 7 MBL St Woods Hole, MA 02543 Phone (508) 289 7496 Email: arc_im@mbl.edu Online URL: http://ecosystems.mbl.edu/ARC/
DATA FILE INFORMATION:
Data File URL	http://metacat.lternet.edu/das/dataAccessServlet?docid=knb-lter-arc.1460&urlTail=terrest/delC-13/data/91scpt17.csv
Data File Name	91scpt17
Beginning Date	5/1/1991
End Date	9/1/1991
Number of Data Records	11
Other Files to Reference
Availability Status
Quality Control Information
Maintenance Description
Log of Changes:	Log of changes: For Archival Use: DATE RECEIVED: DATA FILE ENTERED BY: DATA FILE VALIDATION: NAME: DATE:
	Version 3: Updated to newer metadata form (with sites sheet). Fixed discrepency with variable names. Units updated to current standards. CH March 2013.

RESEARCH LOCATION:

Location Name

Imnavait Creek

Select Site or enter New One

Geographic Description

Imnavait Creek, Alaska, U.S.A. 68o 37' N, 149o 17' W.

Enter Description

Location Bounding Box

West Bounding Coordinate

East Bounding Coordinate

North Bounding Coordinate

South Bounding Coordinate

OR if single point location

Latitude

68.616

In Decimal Degrees

Longitude

-149.283

In Decimal Degrees

Elevation

884

In Meters

Link to Google Map

View on Google Map


TAXONOMIC COVERAGE:
Organisms studied

Methods:	A soil core was collected from the flood plain of Imnavait Creek. The core was section at 1 to 2 cm intervals for measurements of percent moisture, bulk density, percent loss on ignition, del 13C and radiocarbon content. Percent moisture was determined by drying to constant weight at 105 degrees Celcius and loss on ignition , to be converted to percent organic carbon, determined by combustion at 550 degrees Celcius. Dried samples were ground to a fine powder and prepared for del 13C and radiocarbon measurements. Reference Citations: Schell, D.M., Ziemann, P., Parrish, D., and Brown, E. Foodweb and Nutrient Dynamics in Nearshore Alaskan Beaufort Sea Waters. In: Envir. Assessment Alaskan Cont. Shelf, Final Rept. Vol. 25., pp 327-499. MMS/NOAA OCSEAP, Anchorage, AK. Sampling Description. None % ORG C = 0.475 x % LOI + 0.14 del 13C = [(13C/12C sample / 13C/12C standard) - 1] x 1000

Data Table

Variable Name	Variable Description	Data Type	Units	DateTime Format	Code Information	Missing Value Code
SITE	site of measurement	text
DATE	date of collection	datetime		DDMMMYY
DEPTH	depth from core top (centimeters)	text
% MOIST	percent moisture	number	percent			.
DENSITY	peat bulk density (g/cm^3)	number	gramPerMeterCubed			.
% LOI	percent loss on ignition	number	percent			.
% ORG C	percent organic carbon	number	percent			.
% MODERN	percent modern	number	percent			.
DEL C-13	del 13C ratio	number	partPerThousand			.
COMMENT	notes about data	text

	Please contact arc_im@mbl.edu with questions, comments, or for technical assistance regarding this web site.