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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:	90n2rnut
Dataset Title:	phosphorus, nitrate, ammonia, and particulate phosphorus for lake N2 reference in 1990, Arctic LTER 1990.
Investigator 1:
First Name:	Mike
Last Name:	Miller
Address line 1:
Address line 2:
Address line 3:
City:
State:
Zip Code:
Country:
Associate Investigators:	tech Rowe, Neil Bettez
Keywords:	phosphorus, ammonia, nitrate, nitrite, Particulate phosphorus, nutrients.
Abstract:	phosphorus, nitrate, ammonia, and particulate phosphorus for lake N2 reference in 1990.
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	90n2rnut
Beginning Date	5/1/1990
End Date	9/1/1990
Number of Data Records
Other Files to Reference
Availability Status
Quality Control Information
Maintenance Description
Log of Changes:	Log of changes: Original file 90minuts separtated into individual files for each lake by Neil Bettez 1-25-95 Particulate phosphorus data added by Neil Bettez April 16, 1996 For Archival Use: DATE RECEIVED: 9/91 DATA FILE ENTERED BY: Julie Pallant DATA FILE VALIDATION: NAME: Julie Pallant DATE: 9/24/91



RESEARCH LOCATION:
Geographic Description	N2 reference
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:	Water samples collected at designated sites and depths in the outer lakes were analyzed on the Technicon Autoanalyzer II using Technicon methods. In addition to the Standard series run at the beginning and end of each analysis 4 standards and a blank were run with each tray of samples. Particulate Phosphorus, nitrogen and carbon samples were collected on a pre-combusted 47 mm Gelman AE filter and stored frozen until processing, Filters were then split in half and particulate phosphorus was determined using methods of Stainton et al., (1974). Notes: These were all samples that were run by Bill Rowe throughout the summer except the particulate phosphorus. These were run by Neil Bettez in 1996. Reference Citations: R.G. Wetzel & G.E. Likens. 1979. Limnological Methods. Saunders. Philadelphia. A quantification of low-level ammonia in freshwaters. Standard Methods 1985, p 382. Stainton, M.P. M.J. Capel, F.A.J.1974. Armstrong The chemical Analysis of fresh water. Fish Res. Board Can. Misc.Spec. Pub. 25: 67. 1974. Sampling Description. None

Data Table

Variable	Variable descrip.		Precis./Units		Coded	Missing
(Y/N)	Values
SITE		site code for lake					y	n
Lake		Lake sampled						n	n
DEPTH		Depth of sample			meters			n	n
DATE		Date				DD-MMM-YY		n	n
PO4		soluble reactive Phospate	umol/L			n	n
NO3		soluble nitrate			umol/L			n	n
NH4		soluble ammonia			umol/L			n	n
PPO4		Particulate phosphate		ug/L			n	n
PPO4		Particulate phosphate		umol/L			n	n
(12) CALCULATIONS
Variable        Formula