Oxygen and Deuterium Isotope Measurements from Siberia, 2002-2004

Summary

Investigators performed a stable isotope analysis of rain, snow, the Kolyma River, and a local stream near Cherskii, Siberia from 30 June 2002 through 27 April 2004. As part of the Russian-American Initiative on Shelf-land Environments (RAISE) program, this research was designed to quantify the impacts of disturbance on the seasonal cycle of atmospheric carbon dioxide and the discharge of carbon and nitrogen into the Arctic Ocean in forest and shrubby tundra regions. Monitoring the stable isotopic composition of water runoff from Arctic rivers provides a means to investigate integrated basin-scale changes. Investigators measured river water and precipitation δ¹⁸O and δD to partition the river flow into snow and rain components in the Kolyma River basin (Welp et al. 2005).

Data are tab-delimited ASCII text files and are available via FTP. A supplementary graph of the data is also provided in JPEG format.

Citing These Data

Randerson, J. T., and L. R. Welp. 2007. Oxygen and deuterium isotope measurements from Siberia, 2002-2004. Boulder, Colorado USA: National Center for Atmospheric Research. ARCSS Data Archive.

Overview Table

Table of Contents

1. Contacts and Acknowledgments
2. Detailed Data Description
3. Data Access and Tools
4. Data Acquisition and Processing
5. References and Related Publications
6. Document Information

1. Contacts and Acknowledgments

Investigators

James Randerson
Department of Earth System Science
University of California, Irvine
3212 Croul Hall
Irvine, CA 92697
USA

Lisa Welp
Yale School of Forestry and Environmental Science
21 Sachem St., ESC 300
New Haven, CT 06511
USA

Technical Contact

Acknowledgements

This research was funded by the National Science Foundation (NSF) Office of Polar Programs (OPP) grant 0451413 to James Randerson.

2. Detailed Data Description

Please see the investigator-provided documentation, readme.txt for file descriptions and structure information.

Spatial Coverage and Resolution

Data were collected weekly to monthly at selected sites including the Kolyma River and a local stream near Cherskii, Siberia.

Southernmost Latitude: 67.30° N
Northernmost Latitude: 69.43° N
Westernmost Longitude: 158.45° E
Easternmost Longitude: 161.92° E

Temporal Coverage

Investigator collected data from 30 June 2002 through 27 April 2004.

Parameter or Variable

Investigators performed a stable isotope analysis of rain, snow, the Kolyma River, and a local stream near Cherskii, Siberia. They surveyed the following parameters:

• Precipitation (mm)
• River discharge (m³/day)
• Delta (δ) ¹⁸O concentration (‰, VSMOW scale)
• Delta (δ) D concentration (‰, VSMOW scale).

Quality Assessment

Analytical error of ¹⁸O and D measurements is 0.1 ‰ and 1.6 ‰, respectively.

3. Data Access and Tools

Data Access

Data are available for ordering through NCAR.

Volume

Data are distributed as an approximately 56 KB, compressed file.

4. Data Acquisition and Processing

Data are available for ordering through NCAR.

5. References and Related Publications

Welp, L. R., J. T. Randerson, J. C. Finlay, S. P. Davydov, G. M. Zimova, A. I. Davydova, and S. A. Zimov. 2005. A high-resolution time series of oxygen isotopes from the Kolyma River: Implications for the seasonal dynamics of discharge and basin-scale water use. Geophysical Research Letters 32, L14401, doi:10.1029/2005GL022857.

6. Document Information

Acronyms and Abbreviations

The following acronyms and abbreviations are used in this document.

Document Creation Date

January 2007

Document URL

http://data.eol.ucar.edu/codiac/dss/id=106.ARCSS157