The El Nino Theme Page is a comprehensive site from the National Oceanic and Atmospheric Administration (NOAA) covering the basics of El Nino, current updates, and related data. A link to Spanish language sites is also provided. According to the National Oceanic and Atmospheric Adminstration (NOAA), El Nino is "a disruption of the ocean-atmosphere system in the tropical Pacific having important...

This paper is a reprint gleaned from the personal Website of University of Hawaii Professor Shang Ping Xie, who recently published an article on the 3,000 km wake in the Pacific Ocean caused by the Hawaiian Islands. This earlier article, from Journal of Climate, covers a slightly different topic. It discusses interannual variability in intensity and latitude of the Inter-Tropical Convergence Zone...

Scientists have uncovered evidence of a long-term climate pattern in the North Pacific Ocean. Known as the Pacific Decadal Oscillation (PDO), this long-term ocean fluctuation waxes and wanes roughly every 20 to 30 years, and has been shown to have an important influence on salmon abundance. While the El Nino of the southern Pacific Ocean may appear for a year and then disappear, the PDO tends to...

The National Oceanic and Atmospheric Administration (NOAA) and the National Centers for Environmental Predication (NCEP) have made available this excellent learning resource, the ENSO Cycle Website. Graphs, images, photographs, and brief summaries explicate topics such as the Mean state of the Ocean and Atmosphere across the Tropical Pacific, the ENSO Cycle, El Nino, La Nina, and the Evolution of...