Water chemistry data for various lakes near Toolik Research Station, Arctic LTER. Summer 1983 to 1989.

Abstract: 

Decadal file describing the water chemistry in various lakes near Toolik Research Station (68 38'N, 149 36'W) during summers from 1983 to 1989. Chemical analyses were conducted on samples from various depths in the sample lakes either once, or multiple times during the spring, summer and fall months (May to September). Chemical analyses for the samples include alkalinity, dissolved organic and inorganic carbon (DIC/DOC), inorganic and total dissolved nutrients (NH4, PO4, NO3, TDN, TDP), particulate carbon, nitrogen and phosphorous (PC, PN, PP), cations (Ca, Mg, K, Na and Si) and anions (SO4, Cl).

See methods for the yearly datasets which were combined into this data set.

Project Keywords: 

Data set ID: 

10333

EML revision ID: 

3
Published on EDI/LTER Data Portal

Citation: 

Giblin, A., Kling, G. 1985. Water chemistry data for various lakes near Toolik Research Station, Arctic LTER. Summer 1983 to 1989. Environmental Data Initiative. http://dx.doi.org/10.6073/pasta/7d30ceaaf64ac5e6bf6a336c17e3ffb1
People

Owner/Creator: 

Contact: 

Additional People: 

Data Manager
Lab Crew
Associated Researcher
Dates

Date Range: 

Tuesday, August 9, 1983 to Saturday, August 26, 1989

Publication Date: 

1985

Methods: 

For water sampling protocols see the Arctic LTER Land-Water group protocol book accessible from the Land-Water mainpage on the Arctic LTER web page or at http://www-personal.umich.edu/~gwk and clicking on the protocol link at the bottom of the page. Specific methodologies are described in the protocol book listed above and a general description is provided below.
General analyses: In general water samples from soils, streams, and lakes are filtered in the field and kept cold and dark or preserved until analysis. Dissolved inorganic nutrients (NH4 and PO4) were analyzed by wet chemistry techniques at Toolik Field Station usually within 24 hours of sampling. Prior to 1999, the phenate method was used to analyze the ammonium content. In the years 1999-2001, a comparison study of the OPA method and the phenate method were performed. Starting in 2001, OPA was used to analyze ammonium content. Gas samples were analyzed at Toolik Field Station. DIC samples were acidified in the field and analyzed on a gas chromatograph at Toolik Field Station. DOC, TDN, TDP, particulate C, N, and P, and dissolved ions were brought back to the University of Michigan for analysis. DOC is analyzed on a Shimadzu TOC-5000. Particulate Carbon and Nitrogen on a Perkin Elmer CHN 2400, TDN is analyzed on a Shimadzu TOC-5000 or using a persulfate digestion. TDP and NO3 are analyzed on an OI Alpkem autoanalyzer, ions on a Dionex ion chromatograph, and cations on an inductively coupled plasma optical emission spectrometer (ICP-OESPerkin Elmer Optima 4300 or 8000). Alkalinity samples were run on a Radiometer autotitrator either at Toolik Field Station or at the University of Michigan.
For all analyses, sample values that were less than zero were assigned a value of zero. See specific protocols for limits of detection. Missing values (not sampled or analyzed) are represented by a period " . " in the dataset.

Notes: This file combines the data from the following data sets.

Dataset ID
File Name
Title
324 1985-89_N2ct_NutProfile Vertical profiles of nitrate, phosphate and ammonia for lake N2 reference from 1985-1989 , Arctic LTER 1985 to 1989.
325 1985-89_N2Fert_NutProfile Vertical profiles of nitrate, phosphate and ammonia for lake N2 (fertilized side) from 1985-1989 , Arctic LTER 1985 to 1989.
10261 1989_ArcticLTER_Lakes_nuts Nutrient and chemical data for various lakes near Toolik Research Station, Arctic LTER, Summer 1989.
10158 1990_ArcticLTER_Lakes_nuts Nutrient and chemical data for various lakes near Toolik Research Station, Arctic LTER, Summer 1990.
10159 1991_ArcticLTER_Lakes_nuts Nutrient and chemical data for various lakes near Toolik Research Station, Arctic LTER, Summer 1991.
10160 1992_ArcticLTER_Lakes_nuts Nutrient and chemical data for various lakes near Toolik Research Station, Arctic LTER, Summer 1992.
10161 1993_ArcticLTER_Lakes_nuts Nutrient and chemical data for various lakes near Toolik Research Station, Arctic LTER, Summer 1993.
10162 1994_ArcticLTER_Lakes_nuts Nutrient and chemical data for various lakes near Toolik Research Station, Arctic LTER, Summer 1994.
10165 1995_ArcticLTER_Lakes_nuts Nutrient and chemical data for various lakes near Toolik Research Station, Arctic LTER, Summer 1995.
10178 1996_ArcticLTER_Lakes_nuts Nutrient and chemical data for various lakes near Toolik Research Station, Arctic LTER, Summer 1996.
10246 1997_ArcticLTER_Lakes_nuts Nutrient and chemical data for various lakes near Toolik Research Station, Arctic LTER, Summer 1997.
10163 1998_ArcticLTER_Lakes_nuts Nutrient and chemical data for various lakes near Toolik Research Station, Arctic LTER, Summer 1998.

Version Changes: 

Version 1:May 1995 Original Data entered by Neil Bettez and Julie Pallant
Version 2:April 2013 - Data from all lakes compiled into one spreadsheet per year - C. Harris
Jan 2014 - Version Checked for keywords against LTER network preferred list and non-preferred terms replaced - J.Laundre
Jan 2015 - Data compiled by decade and missing values added - J.Drysdale
Version 3: February - Data values, sites, dates and metadata corrected and updated and version 2 of this file was created. A word file "ARC_Lakes_Chemistry_2010-2014_Version2_update.docx" was created to record all changes made between version 1 and version 2. All previous versions of data from these sites should be replaced by this file - Dan White

Sites sampled.

Full Metadata and data files (either comma delimited (csv) or Excel) - Environmental Data Initiative repository.

Use of the data requires acceptance of the data use policy --> Arctic LTER Data Use Policy