An atmospheric river (AR) is a narrow corridor or filament of concentrated moisture in the atmosphere. Other names for this phenomenon are tropical plume , tropical connection , moisture plume , water vapor surge , and cloud band .

Dec 18, 2019 · Atmospheric rivers are often depicted as narrow structures in the atmosphere linking tropical oceans to higher latitudes. The water vapor along an AR can either originate in the tropics and travel poleward or come from convergence of local moisture along the AR's path.

Dec 24, 2024 · An atmospheric river is any long, narrow, and concentrated horizontal corridor of moisture in Earth’s troposphere that transports vast amounts of water vapor and heat from tropical regions near the Equator toward the middle and higher latitudes.

Dec 18, 2019 · We numerically modeled 29 extreme atmospheric rivers that impacted the Pacific Northwest and quantified the contribution of tropical moisture. We found that ARs with significant tropical moisture have stronger winds and warmer conditions.

Jun 16, 2024 · A well-known example of a strong atmospheric river is called the "Pineapple Express" because moisture builds up in the tropical Pacific around Hawaii and can wallop the U.S. and Canada's West Coasts with heavy rainfall and snow.

Feb 2, 2024 · Atmospheric rivers are long and relatively narrow bands of water vapor that form over an ocean and flow through the sky, transporting much of the moisture from the tropics to northern...

what is an atmospheric river? The term atmospheric river is used to indicate narrow, elongated corridors of concentrated moisture transport associated with extratropical cyclones. Atmospheric rivers are the largest transport mechanisms of freshwater on Earth.

Jan 25, 2024 · Atmospheric rivers are long, narrow plumes of moisture transported by winds from the tropics. When they move over land, their heavy precipitation can trigger flooding and...

Apr 6, 2018 · The term "atmospheric river" is a flashy name for a plume of tropical moisture in the atmosphere that can result in heavy rainfall or snowfall in a narrow swath.

Feb 7, 2024 · An atmospheric river that affects the West Coast—and California in particular—is usually nicknamed a Pineapple Express since the source of the tropical moisture is the area around Hawaii ...