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 Snow and Ice Data Center. Digital media.

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Overview Table

Category Description
Data format Tab-delimited ASCII text and JPEG
Spatial coverage Southernmost Latitude: 67.30° N
Northernmost Latitude: 69.43° N
Westernmost Longitude: 158.45° E
Easternmost Longitude: 161.92° E
Temporal coverage and resolution 30 June 2002 through 27 April 2004, weekly to monthly
Files provided The investigator-provided data and documentation files are as follows.

2005GL022857-kolyma_river.txt
2005GL022857-methods.txt
2005GL022857-rain.txt
2005GL022857-snow.txt
2005GL022857-stream.txt
readme.txt
supplement1.jpg
Data file sizes < 5 KB
Parameters Oxygen and deuterium isotope concentrations, river discharge, and precipitation
Procedures for obtaining data Data are available via FTP.

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

NSIDC User Services
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
Boulder, CO 80309-0449  USA
phone: +1 303.492.6199
fax: +1 303.492.2468
form: Contact NSIDC User Services
e-mail: nsidc@nsidc.org

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, available via FTP 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:

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 via FTP.

Volume

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

4. Data Acquisition and Processing

Please refer to Welp et al. (2005) for information on data acquisition and processing.

Derivation Techniques and Algorithms

Please see the investigator-provided documentation, 2005GL022857-methods.txt, available via FTP for derivation information.

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.

ASCII American Standard Code for Information Interchange
FTP File Transfer Protocol
JPEG Joint Photographic Experts Group
NSF National Science Foundation
NSIDC National Snow and Ice Data Center
OPP Office of Polar Programs
ppm Parts per million (permil, ‰)
RAISE Russian-American Initiative on Shelf-land Environments
URL Uniform Resource Locator
VSMOW Vienna Standard Mean Ocean Water

Document Creation Date

January 2007

Document URL

http://nsidc.org/data/docs/arcss/arcss157/index.html