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The Blob is an anomalous body having sea surface temperature much above normal, seen here in a graphic of April 2014 by the NOAA.. The Blob is a large mass of relatively warm water in the Pacific Ocean off the coast of North America that was first detected in late 2013 and continued to spread throughout 2014 and 2015.
This allows the NPGO to more accurately represent transport strengthening in the positive phase across both the Alaskan Coastal Current and California Current (due to geostrophic circulation). [1] Thus when the NPGO is positive, upwelling-favorable conditions are seen in the California Current and Alaskan Gyre, while downwelling -favorable ...
By early March 2024, pockets of below average Sea Surface Temperature SST Anomalies pierced the surface in the equatorial East Pacific, a clear sign that the El Niño event was in full retreat. [23] Several severe thunderstorms bringing high winds and pea-sized hail hit Los Angeles, California, causing strong flooding in streets. [24]
Weakening sea surface temperature anomalies in the tropical Pacific in early 2023 associated with the end of the La Niña event. The 2020–2023 La Niña event was unusual in that it featured three consecutive years of La Niña conditions (also called a "triple-dip" La Niña) in contrast to the typical 9–12 month cycles of the El Niño–Southern Oscillation (ENSO), [3] though the magnitude ...
where F is the variance of the white noise forcing and w is the frequency, an implication of this equation is that at short time scales (w>>λ) the variance of the ocean temperature increase with the square of the period while at longer timescales(w<<λ, ~150 months) the damping process dominates and limits sea surface temperature anomalies so ...
Some of the largest sea surface temperature anomalies are in the Atlantic and off the Horn of Africa, where the hurricanes that rattle the East Coast of the United States often start.
In the United States, an El Niño is declared when the Climate Prediction Center, which monitors the sea surface temperatures in the Niño 3.4 region and the tropical Pacific, forecasts that the sea surface temperature will be .5 °C (0.90 °F) above average or more for the next several seasons. [108]
El Niño is strictly related to water temperatures near the equator in the eastern Pacific Ocean. In April, NOAA issued an El Niño watch, saying there is a 62% chance of the phenomenon developing ...