TY - RPRT TI - Historical effects of El Nino and La Nina events on the seasonal evolution of the montane snowpack in the Columbia and Colorado River Basins AU - Martyn P. Clark AU - Mark C. Serreze AU - Gregory J. McCabe PY - 2001 DO - 10.1029/2000wr900305 UR - https://pubs.usgs.gov/publication/70023305 ID - 70023305 ER -