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Study says UK to see more flooding, as global warming makes atmospheric rivers more frequent and intense

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A GOES 11 satellite image shows a large atmospheric river aimed across California in December 2010.

Warmer, wetter atmosphere will generate more extreme weather

By Summit Voice

FRISCO — Increasing concentrations of greenhouse gases are likely to drive more frequent and intense flooding in the UK, as global warming increases the threat of atmospheric rivers in mid-latitudes.

In their study, researchers, from the University of Reading and University of Iowa found that the number of atmospheric river events will probably double by late this century, compared to the number of events between 1980 ad 2005. Continue reading

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New weather sites will take close look at atmospheric rivers

Coastal observatories in California will measure low-level winds and moisture to generate better forecasts

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A NOAA weather graphic shows an atmospheric river streaming across the Pacific to the central California coast.

By Summit Voice

SUMMIT COUNTY — To get a better handle on the impacts of incoming “atmospheric rivers,” scientists are installing specialized new coastal observatories at Bodega Bay, Eureka, Pt. Sur and Goleta, California.

The coastal weather stations will measure low altitude winds and the amount of moisture moving ashore — key data that will help forecasters pinpoint how much precipitation is likely to fall during an atmospheric river event.

“California needs to know how and where it might rain or snow, when and where to expect flooding,” said Michael Anderson, Ph.D., state climatologist with the California Department of Water Resources. “The observatories will also help state officials and scientists monitor changes in atmospheric rivers associated with climate change.” Continue reading

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