• Andrade, E. R. Jr. and Sellers, W. D., 1988. El Niño and its effect on precipitation in Arizona and western New Mexico. J. Climatol., 8, 403410.
  • Burnett, A. W., 1994. Regional-scale troughing over the southwestern United States: temporal climatology, teleconnections, and climatic impact. Phys. Geog., 15, 8098.
  • Castro, C. L., McKee, T. B. and Pielke, R. A. Sr., 2001. The relationship of the North American monsoon to tropical and north Pacific sea surface temperatures as revealed by observational analyses. J. Clim., 14, 44494473.
  • Cayan, D. R. and Peterson, D. H., 1989. The influence of North Pacific atmospheric circulation on streamflow in the West. Geophys. Monogr., 55, 375397.
  • Comrie, A. C. and Broyles, B., 2002. Variability and spatial modeling of fine-scale precipitation data for the Sonoran desert of southwest Arizona. J. Arid Env., 50, 573592.
  • Franke, R., 1982. Smooth interpolation of scattered data by local thin plate splines. Comp. Math. Appl., 8, 237281.
  • Gershunov, A. and Barnett, T. P., 1998. Interdecadal modulation of ENSO teleconnections. Bull. Am. Met. Soc., 79, 27152726.
  • Keables, M. J., 1992. Spatial variability of midtropospheric circulation patterns and associated surface climate in the United States during ENSO winters. Phys. Geog., 13, 331348.
  • Kiladis, G. N. and Diaz, H. F., 1989. Global climate anomalies associated with extremes of the Southern Oscillation. J. Clim., 2, 10691090.
  • Mantua, N. J., Hare, S. R., Zhang, Y., Wallace, J. M. and Francis, R. C., 1997. A Pacific interdecadal climate oscillation with impacts on salmon production. Bull. Am. Met. Soc., 78, 10691079.
  • Pierce, D. W., Barnett, T. P., Schneider, N., Saravanan, R., Dommenget, D. and Latif, M., 2001. The role of ocean dynamics in producing climate variability in the North Pacific. Clim. Dyn., 18, 5170.
  • Redmond, K. T. and Koch, R. W., 1991. Surface climate and streamflow variability in the Western United States and their relationship to large scale circulation indices. Water. Resour. Res., 27, 23812399.
  • Serreze, M. C., Pulwarty, R. S., Clark, M. P., Armstrong, R. L. and McGinnis, D. A., 1999. Characteristics of the western United States snowpack from snowpack telemetry (SNOTEL) data. Water. Resour. Res., 35, 21452160.
  • Shaw, G. and Wheeler, D., Statistical Techniques in Geographical Analysis. 1998. David Fulton Publishers Ltd, London.
  • Sheppard, P. R., Comrie, A. C., Packin, G. D., Angersbach, K. and Hughes, M. K., 2002. The climate of the Southwest. Clim. Res., 21, 219238.
  • Swetnam, T. W. and Betancourt, J. L., 1998. Mesoscale disturbance and ecological response to decadal climatic variability in the American southwest. J. Clim., 11, 31283147.
  • Woodhouse, C. A., 1997. Winter climate and the atmospheric circulation patterns in the Sonoran desert region, USA. Int. J. Climatol., 17, 859873.
  • Yarnal, B. 1993. Synoptic Elimatology in Environmental Analysis, Belhaven Press, London.