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:	8589n2cn.3
Dataset Title:	Vertical profiles of nitrate, phosphate and ammonia for lake N2 reference from 1985-1989 , Arctic LTER 1985 to 1989.
Investigator 1:
First Name:	Michael
Last Name:	Miller
Organization:
Address line 2:
Address line 3:
City:
State:
Zip Code:
Country:
Investigator 2:
First Name:	Tech
Last Name:	Rowe
Investigator 3:
First Name:	Tech
Last Name:	William
Associate Investigators:
Keywords:	nitrogen, phosphorus, nitrate, nitrite
Abstract:	Vertical profiles of nitrate, phosphate and ammonia for lake N2 reference from 1985-1989
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.324&urlTail=lakes/nutrients/data/8589n2cn.csv
Data File Name	8589n2cn
Beginning Date	5/1/1985
End Date	9/1/1985
Number of Data Records	240
Other Files to Reference
Availability Status
Quality Control Information
Maintenance Description
Log of Changes:	Log of changes: This data was taken from the file 89micln2.dat and separated out by lake and year by Neil Better on Jan 26, 1995 For Archival Use: DATE RECEIVED: DATA FILE ENTERED BY: DATA FILE VALIDATION: NAME: Julie Pallant DATE: 8Oct91
	Version 3: Metadata updated to newer form (with sites sheet). CH May 2013.

RESEARCH LOCATION:
Location Name	N 02	Select Site or enter New One	Select Site or enter New One	Select Site or enter New One	Select Site or enter New One	Select Site or enter New One	Select Site or enter New One	Select Site or enter New One
Geographic Description	Lake N-2 Control (reference)	Enter Description	Enter Description	Enter Description	Enter Description	Enter Description	Enter Description	Enter Description
Location Bounding Box
West Bounding Coordinate
East Bounding Coordinate
North Bounding Coordinate
South Bounding Coordinate
OR if single point location
Latitude	68.6409472345	In Decimal Degrees	In Decimal Degrees	In Decimal Degrees	In Decimal Degrees	In Decimal Degrees	In Decimal Degrees	In Decimal Degrees
Longitude	-149.625086307	In Decimal Degrees	In Decimal Degrees	In Decimal Degrees	In Decimal Degrees	In Decimal Degrees	In Decimal Degrees	In Decimal Degrees
Elevation	724	In Meters	In Meters	In Meters	In Meters	In Meters	In Meters	In Meters
Link to Google Map	View on Google Map


TAXONOMIC COVERAGE:
Organisms studied

Methods:	Water samples were taken weekly from both sides of lake N-2. The sampling depths for the Control side were 0, 1, 3, 5, and 6 meters and the Treatment side were 0, 1, 3, 5, and 7 meters. Nutrients were analyzed using batch methods. SRP was measured using a non-extractive molybdate method (Strickland and Parsons 1969 and Wetzel and Likens 1979). Ammonia was measured by the phenate method (Wetzel and Likens 1979) and Nitrate/Nitrite using the cadmium reduction method. Reference Citations: R.G. Wetzel & G.E. Likens. 1979. Limnological Methods. Saunders. Philadelphia. Sampling Description. None

Data Table

Variable Name	Variable Description	Data Type	Units	DateTime Format	Code Information	Missing Value Code
Site	site code for lake	text
Lake	Lake sampled	text
Depth	Depth of sample	number	meter			.=Missing or Not Measured
Date	Date	datetime		ddmmyy
PO4	soluble reactive Phospate	number	micromolePerLiter			.=Missing or Not Measured
NO3	soluble nitrate	number	micromolePerLiter			.=Missing or Not Measured
NH4	soluble ammonia	number	micromolePerLiter			.=Missing or Not Measured

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