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A USGS model image shows the enormous atmospheric river that may have been present during the 1861–1862 flood event.. The ARkStorm (for Atmospheric River 1,000) is a hypothetical megastorm, whose proposal is based on repeated historical occurrences of atmospheric rivers and other major rain events first developed and published by the Multi-Hazards Demonstration Project (MHDP) of the United ...
The 1862 flood has been used as a key data point in creating the "ARkStorm Scenario," originally projected as California's once-in-a-thousand-years catastrophic flood event, but now some ...
The United States Geological Survey has developed a hypothetical scenario, known as the "ARkStorm" (named for an atmospheric river event that has the likelihood of occurring once per 1,000 years), that would occur should a similar event occur in modern-day California.
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The California flood of 1605 was a massive flood that submerged large portions of present-day California (once known as Alta California).The megaflood was a result of sustained major rain storms across the region, enhanced by an unusually powerful atmospheric river. [1]
Time of concentration is a concept used in hydrology to measure the response of a watershed to a rain event. It is defined as the time needed for water to flow from the most remote point in a watershed to the watershed outlet. [1]
An explanation from the National Weather Service on atmospheric rivers. An atmospheric river (AR) is a narrow corridor or filament of concentrated moisture in the atmosphere.
The Global Scenario Group (GSG) was an international, interdisciplinary body convened in 1995 by the Tellus Institute and the Stockholm Environment Institute (SEI) to develop scenarios for world development in the twenty-first century. Further development of the Great Transition scenarios has been carried on by the Great Transition Initiative ...