1/12/2023 0 Comments California rain![]() ![]() However, from 2012 to 2014, California accumulated a deficit of almost 13 inches, and the 2014-2015 wet season increased the debt another seven inches, for a total 20 inches accumulated deficit during the course of three dry years. In non-drought periods, wet years often alternate with dry years to balance out in the short term. But, the total amount can vary as much as 30 percent from year to year, according to the study. ![]() The state as a whole can expect an average of about 20 inches of precipitation each year, with regional differences. The results were published Thursday in Journal of Geophysical Research-Atmospheres, a journal of the American Geophysical Union. Savtchenko and his colleagues examined data from 17 years of satellite observations and 36 years of combined observations and model data to understand how precipitation has varied in California since 1979. They cause extreme precipitation," said study lead author Andrey Savtchenko at NASA's Goddard Space Flight Center in Greenbelt, Maryland. "When they say that an atmospheric river makes landfall, it's almost like a hurricane, without the winds. In an average year, 20 to 50 percent of California's precipitation comes from relatively few, but extreme events called atmospheric rivers that move from over the Pacific Ocean to the California coast. ![]() The deficit was driven primarily by a lack of air currents moving inland from the Pacific Ocean that are rich in water vapor. A new NASA study has concluded California accumulated a debt of about 20 inches of precipitation between 20-the average amount expected to fall in the state in a single year. ![]()
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