Climate model simulations for the 21st century are consistent in projecting
precipitation increases in high latitudes (very likely) and parts of the tropics, and decreases in some subtropical and lower mid-latitude regions (likely).
Although the current study is limited by the fact that the authors looked only at runoff and held other variables such as land cover constant, the results could be relevant to other regions that are likely to experience
precipitation increases in a warming world.
Not exact matches
«We do see signs of
precipitation extremes
increasing in these regions.»
Climatic variability like
precipitation changes or
increase in extreme events such as storms and tropical cyclones is known to significantly modify the Earth's surface.
Indeed, Arctic change
in the last two decades has been profound — not just dwindling sea ice, but also noticeably
increased precipitation, and thus snow cover, over Eurasia.
It also has seen a 71 percent
increase in the frequency of extreme
precipitation events — more than any other region
in the United States, according to the paper.
The Northeast and the Pacific Northwest may see only a slight
increase in annual
precipitation, maybe one or two percent, but storms are likely to become more intense.
For instance, though about 30 percent of farmers surveyed agreed that extreme weather events will become more frequent
in the future, 52 percent agreed that farmers should take additional steps to protect their land from
increased precipitation.
Precipitation is very variable locally but has
increased in several large regions of the world, including eastern North and South America, northern Europe, and northern and central Asia.
The aerosols catalyze the formation of ice
in the clouds, which could
increase precipitation, although more research needs to be done on that linkage, Creamean said.
Although
precipitation in Nebraska at the northern end of the aquifer will likely
increase, scientists predict the southern parts of the region will get even less than the 16 inches of annual
precipitation they now receive.
According to research
in the September Nature Climate Change,
precipitation patterns
in the area have
increased, which may help larger glaciers such as this one stick around a while longer.
Losing Amazon forest had a significant positive impact on the neighboring forests
in eastern South America, mostly by
increasing the
precipitation there during the Southern Hemisphere summer.
«Of course, weather is naturally chaotic, and extremes are a normal part of our highly variable UK climate, but globally there has recently been an
increase in the incidence of high temperature and heavy
precipitation extremes.
«We realized
in 2013 that there was almost no data on the drought resistance of Amazonian canopy trees, and several recent droughts raised the question of how these trees would fare if climate change caused
increased anomalies
in precipitation.»
A 12 percent
increase in the rate of aquifer recharge from added
precipitation, combined with a projected 3 - foot rise
in sea level by the end of the century, would raise groundwater levels
in some parts of the city by an additional foot — up to 4 feet higher than current levels.
«The winter discharge of the Tanana River has
increased since the record keeping began
in the»70s, but there are no
increasing trends
in precipitation,» she said.
«Furthermore, our work focuses on
increases / decreases
in temperatures, but similar analyses are needed to estimate consensus changes
in other meteorological variables such as
precipitation.
To see how
increased temperatures might contribute to the reductions
in the river's flow that have been observed since 2000, Udall and Overpeck reviewed and synthesized 25 years of research about how climate and climate change have and will affect the region and how temperature and
precipitation affect the river's flows.
«
In general, the amount of precipitation is increasing but also the kind of precipitation is changing,» said McFadden, an associate professor in UCSB's Department of Geograph
In general, the amount of
precipitation is
increasing but also the kind of
precipitation is changing,» said McFadden, an associate professor
in UCSB's Department of Geograph
in UCSB's Department of Geography.
«If we look at
precipitation events over the long term, there is an
increase in frequency of extremes.
It also will expand impervious surfaces as
precipitation is expected to
increase in some areas.
The Midwest has seen a 37 percent
increase in the amount of rain falling
in heavy
precipitation events since the late 1950s, the second - highest
increase in the U.S. over that period.
The monsoon
precipitation intensified, and the
increase caused erosion along the Tibetan Plateau and lower elevation areas nearby
in what today is China, researchers found.
«Microbes involved
in the nitrogen cycle, which are still active today, could have played a major role
in calcite
precipitation because of their ability to
increase the pH,» explains Dr Stinnesbeck.
Climate model results have long suggested that we would see
increased precipitation in the tropics as a result of climate change.
Wahl published a paper
in Nature Communications
in 2015 on the effects of compound flooding, which is when
increased river discharge,
precipitation and storm surges happen at the same time.
The
increased production
in these crops is driven by higher
precipitation predicted to occur
in the central U.S., combined with higher concentrations of carbon dioxide, which reduces a plant's water requirements.
The models also projected an
increase in intensity of the ARs, meaning an AR impacting the UK
in the future is projected to deliver more moisture, potentially causing larger
precipitation totals.
In addition, strong biosphere - radiation feedbacks are often present in several moderately wet regions, for instance in the Eastern U.S. and in the Mediterranean, where precipitation and radiation increase vegetation growt
In addition, strong biosphere - radiation feedbacks are often present
in several moderately wet regions, for instance in the Eastern U.S. and in the Mediterranean, where precipitation and radiation increase vegetation growt
in several moderately wet regions, for instance
in the Eastern U.S. and in the Mediterranean, where precipitation and radiation increase vegetation growt
in the Eastern U.S. and
in the Mediterranean, where precipitation and radiation increase vegetation growt
in the Mediterranean, where
precipitation and radiation
increase vegetation growth.
Loss of the afternoon data would mean a «50 % error
increase in [forecasting]
precipitation rates
in southern US,» according to a NOAA presentation.
Even if vineyards relocate northward
in search of cooler climes,
increased precipitation in areas like the Pacific Northwest could make crops more susceptible to fungus and rot.
Given the revised timeline
in this region, Willenbring and colleagues determined that the
increased precipitation resulted from changes
in the intensity of the sun's radiation on the Earth, which is based on the planet's tilt
in orbit.
Acknowledging the effects of decreasing
precipitation requires changes
in how resource specialists approach climate change adaptation for water resources and forest management compared to preparing for
increased temperature alone,» he said.
They found that regional differences
in the timing of
precipitation, and the resulting
increase in local vegetation and plants («greening»), could best explain the source of genetic differences.
Our study shows is that
increases in the number of extreme heat and extreme
precipitation events, particularly during summer months, lead to more asthma hospitalizations
in Maryland.»
Under various climate and land - use scenarios, coniferous stands are expected to lose 71 percent to 100 percent of their current range to deciduous stands across New England by 2085, particularly
in Vermont, New Hampshire and Maine, due to
increased temperature and
precipitation and changes
in timber harvesting.
By analyzing data from 270 monitoring sites around the country, Zhang and his colleagues found that the amount of nitrogen deposition, as measured
in precipitation, had
increased by 60 % — or 8 kilograms per hectare per year — between 1980 and 2010.
«But because
precipitation has to be balanced by evaporation, we expect a [corresponding]
increase in dry regions,» Marvel said.
Because the models predict little average
precipitation increase nationwide over this period, the product of CAPE and
precipitation gives about a 12 percent rise
in cloud - to - ground lightning strikes per degree
in the contiguous U.S., or a roughly 50 percent
increase by 2100 if Earth sees the expected 4 - degree Celsius
increase (7 degrees Fahrenheit)
in temperature.
Still, he says, «One of the clearest signals we see is that an
increase in global temperatures leads to an
increase in extreme or heavy
precipitation events.»
Indeed, conventional wisdom held that higher levels of aerosol pollution
in the atmosphere should cool the earth's climate because aerosols can
increase cloudiness; they not only reduce
precipitation, which raises the water content
in clouds, but they also
increase the size of the individual water droplets, which
in turn causes more warming sunlight to be reflected back into space.
However, unlike the climate model simulations, the new
precipitation reconstruction does not show an
increase of wet and dry anomalies
in the twentieth century compared to the natural variations of the past millennium.
As climate change raises summer temperatures around the world,
increases in precipitation could offset drought risk
in some regions.
«We expect a widespread
increase in heavy
precipitation due to greenhouse gas warming leading to a moister atmosphere,» explains climatologist Gabriele Hegerl of the University of Edinburgh
in Scotland.
During an El Niño, satellites often observe a shift
in precipitation over the ocean, specifically an
increase in rain over the eastern Pacific, said Huffman.
The predictions matched actual rainfall measurements during the 75 - year period, both
in the magnitude (amount) and the trend (
increase or decrease) of
precipitation.
The panel finds that humans have already contributed to an
increase in the frequency and duration of heat waves and an intensification of heavy
precipitation events.
The amount of
precipitation in the White Mountains has steadily
increased in the period from 1900 to 2000, but the
increase does not seem to have been sufficient to stimulate the growth of trees below the tree line.
Zhibin Zhang, an ecologist at the Chinese Academy of Science's Institute of Zoology
in Beijing and a co-author of the paper, says that
in the event of a plague outbreak, «monitoring and prevention measures should be taken
in regions facing an obvious
increase in precipitation or flooding events, and with close transportation connections with plague [centers].»