Measurements of a suite of trace elements in snow pit samples from WAIS Divide, Antarctica.
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Snowpit Chemistry - Methods Comparison, WAIS Divide, Antarctica, Version 1
Geographic Coverage
Spatial Coverage: |
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Spatial Resolution: | Not Specified |
Temporal Coverage: |
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Temporal Resolution: | Not specified |
Parameter(s): |
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Platform(s) | LABORATORY |
Sensor(s): | MASS SPECTROMETERS |
Data Format(s): |
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Version: | V1 |
Data Contributor(s): | Karl Kreutz |
Metadata XML: | View Metadata Record |
Data Citation
As a condition of using these data, you must cite the use of this data set using the following citation. For more information, see our Use and Copyright Web page.
Kreutz, K. and B. G. Koffman. 2015. Snowpit Chemistry - Methods Comparison, WAIS Divide, Antarctica, Version 1. [Indicate subset used]. doi: http://dx.doi.org/10.7265/N5Q81B1X. [Date Accessed].Literature Citation
As a condition of using these data, we request that you acknowledge the author(s) of this data set by referencing the following peer-reviewed publication.
Koffman, B. G., M. Handley, E. C. Osterberg, M. L. Wells, and K. Kreutz. 2014. Dependence of ice-core relative trace-element concentration on acidification, Journal of Glaciology. 60. 103-112. http://dx.doi.org/10.3189/2014JoG13J137
Detailed Data Description
Data are in Microsoft Excel (.xlsx
) format.
Data are available on the FTP site in the ftp://sidads.colorado.edu/pub/DATASETS/AGDC/nsidc0620_kreutz
directory. Within this directory, there are two files: Kreutz_Koffman_trace_element_concentrations.xlxs and Kreutz_Koffman_trace_element_stdev.xlxs
.
The data are formatted to be compatible with Matlab (i.e., there are no text cells, and any non-data values are signified by Not-a-Number (NaN)). The spreadsheets are organized, by rows, into three blocks, which contain data from a different acid treatment, in concentration order: 0.1% nitric acid, 1.0% nitric acid, and 10% nitric acid.
The first column gives the time, in days, each measurement was made relative to the beginning of the experiment. All other columns give measured concentrations (Kreutz_Koffman_trace_element_concentrations.xlxs)
or standard deviations (Kreutz_Koffman_trace_element_stdev.xlxs
). Each concentration is the average of five replicate samples, which were poured out of the sample bottle at each analysis time. Blanks have been subtracted from each value. For the standard deviation spreadsheet, the values given are one standard deviation of the five replicates at each analysis time.
The Kreutz_Koffman_trace_element_concentrations.xlsx
file is 50 KB, and the Kreutz_Koffman_trace_element_stdev.xls
file is 45 KB.
The entire data set is 95 KB.
The spatial coverage is the WAIS Divide, Antarctica: Latitude: 79°28.058' S; Longitude: 112°05.189' W.
Spatial Resolution
Altitude of the sample area is 1766 m above sea level (a.s.l.).
Data were collected from 01 April 2009 to 30 August 2009.
Snow/Ice Chemistry
Trace Elements
Sample Data Record
Refer to Figure 1 for an example of the data.

Software and Tools
The data can be accessed using Microsoft Excel.
Data Acquisition and Processing
Snow samples were collected from a 2.6 m snow pit dug in 2008 at the West Antarctic ice sheet (WAIS) Divide ice-core site (79°28.058' S, 112°05.189' W; 1766 m a.s.l.).
Processing Steps
The snow samples were homogenized, then split into three sub-samples, which were leached at different nitric acid strengths over the course of three months. Trace elements were measured using a Thermo Finnigan Element II Inductively Coupled Plasma Sector-Field Mass Spectrometer (ICP-SFMS), and include: Strontium (Sr), Cadmium (Cd), Cesium (Cs), Barium (Ba), Lanthanum (La), Cerium (Ce), Praseodymium (Pr), Lead (Pb), Uranium (U), Bismuth (Bi), Arsenic (As) , Aluminum (Al), Lithium (Li), Sulfur (S), Calcium (Ca), Titanium (Ti), Vanadium (V), Chromium (Cr), Manganese (Mn), Iron (Fe), Cobalt (Co), Magnesium (Mg), Copper (Cu), Zinc (Zn), Potassium (K), Sodium (Na).
References and Related Publications
Contacts and Acknowledgments
Document Information
DOCUMENT CREATION DATE
May 2015
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