The evidence of abrupt shifts that turned up in occasional studies may seem strong in retrospect, but at the time it was not particularly convincing. (history.aip.org)
They still progress logically but with abrupt shifts in place, time, and feeling, and the flow and tempo of the movie are off. (markreviewsmovies.com)
Global rainfall and flood records likewise show evidence for abrupt shifts and regimes that persist for decades. (watertechbyrie.com)