Ocean and atmospheric patterns associated with the most severe and most persistent droughts in the Mexican Altiplano region are explored. The standardized precipitation index on a time scale of 12 months was used and compared with time series of other atmospheric conditions to identify major dry episodes from 1970 to 2012. The time series were derived from the second mode of a varimax‐rotated empirical orthogonal functional an...

Previous hydroclimatological analysis of the North American Monsoon (NAM) region of northwest México revealed significant sub‐regions of coherence in seasonal precipitation and streamflow. In this work, interannual variations in regionalized streamflow and rainfall‐runoff relationships are explored. Modulation of the monsoon hydroclimatology by large‐scale forcing mechanisms such as tropical, North Pacific, and Caribbean Sea‐s...