ENSO, Pacific Decadal Variability, and U.S. Summertime Precipitation, Drought, and Stream Flow

Abstract

The relationship between the three primary modes of Pacific sea surface temperature (SST) variability-the El Nin o-Southern Oscillation (ENSO), the Pacific decadal oscillation, and the North Pacific mode-and U.S. warm season hydroclimate is examined. In addition to precipitation, drought and stream flow data are analyzed to provide a comprehensive picture of the lower-frequency components of hydrologic variability.