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Data Series 369

In cooperation with the National Park Service, U.S. Department of Agriculture Forest Service, Teton County, Wyoming, and Colorado Department of Public Health and Environment

Rocky Mountain Snowpack Physical and Chemical Data for Selected Sites, 1993–2008

By George P. Ingersoll, M. Alisa Mast, Donald H. Campbell, David W. Clow, Leora Nanus, and John T. Turk

Abstract

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The Rocky Mountain Snowpack program established a network of snowpack-sampling sites in the Rocky Mountain region from New Mexico to Montana to monitor the chemical content of snow to help in the understanding of the effects of atmospheric deposition to this region. The U.S. Geological Survey, in cooperation with the National Park Service, the USDA Forest Service, Teton County in Wyoming, Rio Blanco County in Colorado, Pitkin County in Colorado, and others, collected and analyzed snowpack samples annually for 48 or more sites in the Rocky Mountain region during 1993–2008. Forty-eight of the 162 snow-sampling sites have been sampled annually since 1993. Data include acid-neutralization capacity, specific conductance, pH, hydrogen ion concentrations, dissolved concentrations of major constituents (calcium, magnesium, sodium, potassium, ammonium, chloride, sulfate, and nitrate), dissolved organic carbon concentrations, snow/ water equivalent, snow depth, stable sulfur isotope ratios, total mercury concentrations (beginning in 2001), and ionic charge balance. Quality-assurance data for field and laboratory blanks and field replicates for individual years (1993–2008) also are included.

First posted February 11, 2009

For additional information contact:

Director, USGS Colorado Water Science Center
Box 25046, Mail Stop 415
Denver, CO 80225

http://co.water.usgs.gov/

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Suggested citation:

Ingersoll, G.P., Mast, M.A., Campbell, D.H., Clow, D.W., Nanus, L., and Turk, J.T., 2009, Rocky Mountain snowpack physical and chemical data for selected sites, 1993–2008: U.S. Geological Survey Data Series 369, 90 p.



Contents

Abstract

Introduction

Sampling Methods and Analyses

Snowpack Physical and Chemical Data

Acknowledgments

References Cited


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