Sentences with phrase «precipitation deficits yield»
Given the known influence of temperature on drought, the fact that the 2012 — 2014 record drought severity has co-occurred with record statewide warmth (7) raises the question of whether long - term warming has altered the probability that precipitation deficits yield extreme drought in California.
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Our analyses show that California has historically been more likely to experience drought if precipitation deficits co-occur with warm conditions and that such confluences have increased in recent decades, leading to increases in the fraction of low - precipitation years that yield drought.
Taken together, the observed record from California suggests that (i) precipitation deficits are more likely to yield 1 - SD PMDI droughts if they occur when conditions are warm and (ii) the occurrence of 1 - SD PMDI droughts, the probability of precipitation deficits producing 1 - SD PMDI droughts, and the probability of precipitation deficits co-occurring with warm conditions have all been greater in the past two decades than in the preceding century.