• Barton, M., New concepts in snow surveying to meet expanding needs, Advanced Concepts and Techniques in the Study of Snow and Ice Resources, H. S. Santeford, J. L. Smith, 3946, Natl. Acad. of Sci., Washington, D. C., 1974.
  • Burt, J. E., G. M. Barber, Elementary Statistics for Geographers, 317322, Guilford, New York, 1996.
  • Caine, N., An elevational control of peak snowpack variability, Water Resour. Bull., 11, 613621, 1975.
  • Cayan, D., Interannual climate variability and snowpack in the western United States, J. Clim., 9, 928948, 1996.
  • Changnon, D., T. B. McKee, N. J. Doesken, Hydroclimatic variability in the Rocky Mountains, Water Resour. Bull., 27, 733743, 1991.
  • Changnon, D., T. B. McKee, N. J. Doesken, Annual snowpack patterns across the Rockies: Long-term trends and associated 500-mb synoptic patterns, Mon. Weather Rev., 121, 633647, 1993.
  • Doesken, N. J., G. L. Schaefer, The contribution of SNOTEL precipitation measurements to climate analysis, monitoring and research in ColoradoWestern Snow ConferenceVancouver, B.C., CanadaApril 14–16, 1987.
  • Goodison, B. E., H. L. Ferguson, G. A. McKay, Measurement and data analysis, Handbook of Snow: Principles, Processes, Management, and Use, D. M. Gray, M. H. Male, 191274, Pergamon, New York, 1981.
  • Johnson, D. E., SNOTEL, Proceedings of the Federal Interagency Workshop on Hydrologic Modeling Demands for the 90's, James S. Burton, 2.302.34, U.S. Dep. of the Inter., Fort Collins, Colo., 1993.
  • Johnson, G. L., C. L. Hanson, Topographic and atmospheric influences on precipitation variability over a mountainous watershed, J. Appl. Meteorol., 34, 6887, 1995.
  • Jolliffe, I. T., Principal component analysis: A beginner's guide, II, Pitfalls, myths, and extensions, Weather, 48, 246253, 1993.
  • McCabe Jr., G. J., Relationships between atmospheric circulation and snowpack in the Gunnison River basin, Colorado, J. Hydrol., 157, 157175, 1994.
  • McCabe Jr., G. J., D. R. Legates, Relationships between 700 hPa height anomalies and 1 April snowpack accumulations in the western USA, Int. J. Climatol., 15, 517530, 1995.
  • Rallison, R. E., Automated system for collecting snow and related hydrological data in mountains of the western United States, Hydrol. Sci., 26, 8389, 1981.
  • Richman, M. B., Rotation of principal components, J. Climatol., 6, 293335, 1986.
  • Serreze, M. C., M. P. Clark, R. L. Armstrong, D. A. McGinnis, R. S. Pulwarty, Characteristics of the western United States snowpack from snowpack telemetry (SNOTEL) data, Water Resour. Res., 35, 21452160, 1999.
  • , Soil Conservation Service,SNOTEL sites: Western United States and Alaska map, U.S. Dep. of Agric., Fort Worth, Tex., 1988.
  • Spreen, W. C., A determination of the effect of topography upon precipitation, Eos Trans. AGU, 28(2), 285290, 1947.