Weather at Toolik

Arctic LTER Database

Acceptance and utilization of LTER data requires that:

(1) The Principal Investigator be sent a notice stating reasons for acquiring any data and a description of the publication intentions.
(2) The Principal Investigator of the data set be sent a copy of the report or manuscript prior to submission and be adequately cited in any resultant publications.
(3) A copy of any resultant publications should be sent to:

Principal Investigator
Ecosystems Center
Marine Biological Laboratory
7 MBL St.
Woods Hole, MA 02543

Older Metadata: Attribute table not in XML (EML) file

Dataset URLs:	METADATA: HTML, Rich Text, XML(EML compliant) DATA: Comma Delimited, Excel file with Metadata and data
Dataset ID:	94peknut
Dataset Title:	Nutrients run on the AA and by manual chemistry for the Kuparuk River during the summer of 1994, Arctic LTER 1994.
Investigator 1:
First Name:	Bruce
Last Name:	Peterson
Address line 1:
Address line 2:
Address line 3:
City:
State:
Zip Code:
Country:
Associate Investigators:	Chris Harvey, Ken Edwardson, Rich Smith, Heidi Golden
Keywords:	phosphorus, nitrate, ammonium, PO4, NO3, NH4, nutrients, Kuparuk, River
Abstract:	Nutrients run on the AA and by manual chemistry for the Kuparuk River during the summer of 1994.
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 Name	94peknut
Beginning Date	5/1/1994
End Date	9/1/1994
Number of Data Records
Other Files to Reference
Availability Status
Quality Control Information
Maintenance Description
Log of Changes:	Log of changes: For Archival Use: DATE RECEIVED:April 5, 1995 DATA FILE ENTERED BY: Chris Harvey DATA FILE VALIDATION: NAME: Chris Harvey DATE: April 5, 1995



RESEARCH LOCATION:
Geographic Description	Kuparuk River, North Slope of Alaska
Location Bounding Box
West Bounding Coordinate
East Bounding Coordinate
North Bounding Coordinate
South Bounding Coordinate
OR if single point location
Latitude
Longitude



TAXONOMIC COVERAGE:
Organisms studied

Methods:	Biweekly water samples collected at designated sites along the Kuparuk river were analyzed for soluble reactive phosphate, ammonium, and nitrate/nitrite on the Technicon Autoanalyzer II. Technicon methods were used. Each run was calibrated with 4 standards and a blank for every sample tray. For much of the season, ammonium samples were also run by manual chemistry using an adaptation from Standard Methods, 1985. Notes: This year, the Kuparuk was not sampled as intensively as in previous summers. Rather than taking entire transects of the study reach, weekly samples were primarily taken at the station at +0.564 km, located just upstream of the phosphorus dripper. Two full transects were taken, the first on July 15 and the second on August 5. Reference Citations: R.G. Wetzel & G.E. Likens. 1979. Limnological Methods. Saunders. Philadelphia. APHA. 1985. Standard Methods. Boyd. Albany. Sampling Description. None

Data Table

Variable    Variable descrip.            Precis./Units  Coded   Missing
(Y/N)    Values
SITE        site of measurement                           y
SYSTEM      site of measurement (named)                   n
DATE        Date                           DD-MMM-YY      n
D/D         Station on river        km from 1983 dripper  n
PO4         phospate                       uM/L           n
NO3         nitrate                        uM/L           n
NH4         ammonia                        uM/L           n
(12) CALCULATIONS
Variable        Formula