Nature paper As a consequence, a 25 % to 100 % increase in extreme dry - to -
wet precipitation events is projected, despite only modest changes in mean precipitation.
Not exact matches
Daniel Swain and colleagues model how the frequency of these rapid, year - to - year transitions from extreme dry to
wet conditions — which they dub «
precipitation whiplash
events» — may change in California's future as a consequence of man - made warming.
Another aspect of this phenomenon is that in a warmer,
wetter world a larger proportion of the
precipitation falls in extreme
events.
The pattern of change for the
wettest day of the year is projected to roughly follow that of the average
precipitation, with both increases and decreases across the U.S. Extreme hydrologic
events are projected to increase over most of the U.S.
Such
events are consistent with observations and projections of
wetter springs and more intense
precipitation events (see Figure 18.6).
On extreme
precipitation events over mid-latitude landmass and
wet tropical regions becoming more intense and frequent, the CLAs clarified that the assessment was based on more than the RCPs, and that the conclusion was generally true for all these regions.
In addition to direct crop damage from increasingly intense
precipitation events,
wet springs can delay planting for grain and vegetables in New York, for example, and subsequently delay harvest dates and reduce yields.67 This is an issue for agriculture nationally, 65 but is particularly acute for the Northeast, where heavy rainfall
events have increased more than in any other region of the country (Ch.
Wet - day percentiles are conditionally computed for the subset of wet events (with precipitation exceeding some threshold, e.g. 1 mm / d for daily precipitatio
Wet - day percentiles are conditionally computed for the subset of
wet events (with precipitation exceeding some threshold, e.g. 1 mm / d for daily precipitatio
wet events (with
precipitation exceeding some threshold, e.g. 1 mm / d for daily
precipitation).
Global
precipitation will increase, and the heaviest
precipitation events are intensifying [1], but with regional differences:
Wet regions such as the tropical rainforests will become rainier while semi-arid regions of the subtropics expand and become drier.
In particular, over NH land, an increase in the likelihood of very
wet winters is projected over much of central and northern Europe due to the increase in intense
precipitation during storm
events, suggesting an increased chance of flooding over Europe and other mid-latitude regions due to more intense rainfall and snowfall
events producing more runoff.
In addition, the probability of a — 1.5 SD
precipitation anomaly increases in spring (P < 0.001) and autumn (P = 0.01) in 2006 — 2080 relative to 1920 — 2005, with spring occurrence increasing by ∼ 75 % and autumn occurrence increasing by ∼ 44 % — which represents a substantial and statistically significant increase in the risk of extremely low -
precipitation events at both margins of California's
wet season.
Indicators based on daily
precipitation data show more mixed patterns of change but significant increases have been seen in the extreme amount derived from
wet spells and number of heavy rainfall
events.
A large ensemble of climate model simulations suggests that the frequency of extreme
wet - to - dry
precipitation events will increase by 25 % to 100 % across California due to anthropogenic forcing.