Skip Links

USGS - science for a changing world

Fact Sheet 2011–3084

Response of Lake Chemistry to Atmospheric Deposition and Climate in Selected Class I Wilderness Areas in the Western United States, 1993–2009

By M. Alisa Mast

Thumbnail of and link to report PDF (7.4 MB)Abstract

The U.S. Geological Survey, in cooperation with the U.S. Department of Agriculture Forest Service, Air Resource Management, conducted a study to evaluate long-term trends in lake-water chemistry for 64 high-elevation lakes in selected Class I wilderness areas in Colorado, Idaho, Utah, and Wyoming during 1993 to 2009. Understanding how and why lake chemistry is changing in mountain areas is essential for effectively managing and protecting high-elevation aquatic ecosystems. Trends in emissions, atmospheric deposition, and climate variables (air temperature and precipitation amount) were evaluated over a similar period of record. A main objective of the study was to determine if changes in atmospheric deposition of contaminants in the Rocky Mountain region have resulted in measurable changes in the chemistry of high-elevation lakes. A second objective was to investigate linkages between lake chemistry and air temperature and precipitation to improve understanding of the sensitivity of mountain lakes to climate variability.

First posted January 4, 2012

For additional information contact:

Director, Colorado Water Science Center
U.S. Geological Survey
Box 25046, Mail Stop 415
Denver, CO 80225

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

Part or all of this report is presented in Portable Document Format (PDF); the latest version of Adobe Reader or similar software is required to view it. Download the latest version of Adobe Reader, free of charge.


Suggested citation:

Mast, M. Alisa, 2011, Response of lake chemistry to atmospheric deposition and climate in selected Class I wilderness areas in the western United States, 1993–2009: U.S. Geological Survey Fact Sheet 2011–3084, 6 p.



Contents

Background

Data Sources and Methods of Analysis

Major Findings

Conclusions and Implications

References Cited


Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: http://pubs.usgs.gov/fs/2011/3084/
Page Contact Information: GS Pubs Web Contact
Page Last Modified: Wednesday, January 09, 2013, 07:25:51 PM