Before-and-after photos of various landscapes in California show what a difference the deluge of winter rain has made after years of drought.
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Photos taken by Getty Images photographer Justin Sullivan in the summer of 2014 -- in the middle of the drought -- show brown fields and dried-up reservoirs. They differ starkly from the photos taken by Sullivan Tuesday.
The summer of 2014 was the most "severe" period during California's four-year drought, said Amir AghaKouchak, associate professor, civil and environmental engineering, at the University of California, Irvine.
While California's groundwater resources will still take a while to "recharge and recover," AghaKouchak added that "overall ... the drought is over."
Gov. Jerry Brown ended the drought emergency for most of the state last week.
Sullivan, who is based in San Francisco, told ABC News that there was a vast difference from 2014 to now.
"It was so brown everywhere," Sullivan said when describing what it was like to snap the photos in 2014. For years, it seemed like the landscape would "get green for a couple of months," but would then return to its brown state, he said.