Sentences with phrase «precipitation increases on»

Not exact matches

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.
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.
«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
«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.
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.
With the 2 - degree temperature increase, California would not see a noticeable impact on precipitation patterns.
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.
«Plants, animals, and people all depend on forests and may all face additional challenges as temperatures increase and precipitation patterns shift,» said John Shuey, a co-author of the study and Director of Conservation Science for the Indiana Chapter of The Nature Conservancy.
Increasing temperature is likely to lead to increasing precipitation but the effects on storms are lIncreasing temperature is likely to lead to increasing precipitation but the effects on storms are lincreasing precipitation but the effects on storms are less clear.
Making the outlook murky is the fact that climate models do not agree on whether future precipitation in the Colorado Basin will increase or decrease.
«Our study has found evidence to the contrary, suggesting that in fact, the future long - term trend based on paleoclimate reconstructions is likely towards diminishing precipitation, with no relief in the form of increased Mediterranean storms, the primary source of annual precipitation to the region, in the foreseeable future.»
The CO2 physiological response has a dominant role in evapotranspiration and has a major effect on long - term runoff and soil moisture compared to radiative or precipitation changes due to increased atmospheric CO2.
An increased risk of intense, short - duration rainfall events in mid-latitude regions has been predicted consistently for well over a decade as part of the pattern of human influence on precipitation.
As the 2014 Intergovernmental Panel on Climate Change report notes, models predict that increasing temperature ought to cause greater precipitation extremes in both directions — both drought and flooding, though there are likely more areas of heavy precipitation.
The study concludes that the growth of the Mauna Kea glacier caused by the AMOC current changes was a result of both colder conditions and a huge increase of precipitation on Mauna Kea — triple that of the present — that scientists believe may have been caused by more frequent cyclonic storm events hitting the Hawaiian Islands from the north.
This new research shows the first clear evidence of the long - term effects of pollution particles on cloud height and thickness, and how those changes both reduce precipitation in dry regions and increase precipitation in wet regions.
Rising temperatures and shifts in precipitation and moisture balance of forests are likely to increase negative direct effects on forests, particularly in water - limited systems and in years with low precipitation.
Projected future shifts in precipitation are varied, with not all models agreeing on whether precipitation will increase or decrease in Montana.
If local temperature increases are limited to 1 to 3 °C, some regions, such as Northern Europe and North America, could benefit from a longer growing season, more precipitation, and less frost, depending on the crop.
In locations that are accustomed to getting snow during the winter, the total amount of snow each year is already decreasing as the planet warms from increasing greenhouse gases; the percentage of precipitation falling as snow is on the decline, with more of it falling as rain.
The review by O'Gorman et al (3) reports that a 1C increase in global mean temperature will result in a 2 % — 7 % increase in the precipitation rate; the lower values are results of GCM output, and the upper values are results from regressing estimated annual rainfalls on annual mean temperatures.
The potential risks around sulfate aerosol solar geoengineering include alteration of regional precipitation patterns, its effects on human health, and the potential damage to Earth's ozone layer by increased stratospheric sulfate particles.
Data analyses have found an increase of drought intensity at many locations [130]--[131] The magnitude of change depends on the drought index employed [132], but soil moisture provides a good means to separate the effect of shifting seasonal precipitation and confirms an overall drought intensification [37].
«The rising risk results from decreases in precipitation, based on 16 leading climate models, and increases in water demand, based on current growth trends.
The direct effects of climate change on forests include increased temperatures and shifts in precipitation that together alter humidity, soil moisture, and water stress.
An increase of intense precipitation events has been found on much of the world's land area [127]--[129].
Half the increase in urban land across the world over the next 20 years will occur in Asia, with the most extensive change expected to take place in India and China Urban areas modify their local and regional climate through the urban heat island effect and by altering precipitation patterns, which together will have significant impacts on net primary production, ecos...
The likelihood of precipitation making an appearance during your holiday starts off at 5 % on May 1st and gradually increases up to 38 % by May 31st, making the first week of May the best time to visit if you want to avoid any wet weather.
The likelihood of precipitation making an appearance slightly increases as the month develops, starting off at 78 % on July 1st and rising up to 89 % by July 31st, making the start of the month the best time to visit if you want to keep rainfall to a minimum.
The probability of precipitation occurring greatly increases as the month develops, starting off at 39 % on June 1st and rising up to 78 % by June 30th.
By looking at the signatures of climate change in precipitation intensity and comparing that to the internal variability and the observation, the researchers conclude that the probability of intense precipitation on any given day has increased by 7 percent over the last 50 years — well outside the bounds of natural variability.
«During November 2011 - January 2012, there is an increased chance of above - average temperatures across the south - central U.S. with the odds favoring below - average temperatures over the north - central U.S.. Also, above - average precipitation is favored across the northern tier of states, excluding New England, and drier - than - average conditions are more probable across the southern tier of the U.S. (see 3 - month seasonal outlook released on 20 October 2011).»
Here is an interesting report on the links between tropical temperatures and increased likelihood of extreme precipitation events:
But total precipitation (including rain / snow on the Arctic ocean) is estimated to have increased with 500 km3 / yr.
They say that that warming will have some adverse consequences (drought, sea - level rise, increased impulsive precipitation, and so on).
The natural oscillations intrigue me because of their potential to dramatically increase precipitation on shifts, which reduces heat content that may not be accurately reflected in the surface temperature record.
Heavy precipitation has increased worldwide, but the effect of this on flood magnitude has been difficult to pinpoint.
Although data are not complete, and sometimes contradictory, the weight of evidence from past studies shows on a global scale that precipitation, runoff, atmospheric water vapor, soil moisture, evapotranspiration, growing season length, and wintertime mountain glacier mass are all increasing.
So a local spike in precipitation releases a lot of heat — but as the heat increases, this negatively affects the vapor - > water transition (precipitation, or raindrop formation), since warm air holds more water then cool air — and so the limit on precipitation vis - a-vis the radiative balance of the atmosphere appears.
Further, let's agree that this will on average cause more precipitation due to increased evaporation at these higher temperatures (the best data I have seen say that the precipitation trend over the continental US — where we have the best long term records — is up 5 - 10 % over the last century).
On the matter of the role of condensation nuclei, a few general circulation models do have some crude representation of nucleation microphysics in their convection or cloud schemes, but it certainly isn't the key factor in the weak increase of precipitation with temperature, which is seen in all GCM's including those with very basic representations of convection.
So: The study finds a fingerprint of anthropogenic influences on large scale increase in precipitation extremes, with remaining uncertainties — namely that there is still a possibility that the widespread increase in heavy precipitation could be due to an unusual event of natural variability.The intensification of extreme rainfall is expected with warming, and there is a clear physical mechanism for it, but it is never possible to completely separate a signal of external forcing from climate variability — the separation will always be statistical in nature.
«If there are no while zones on top of the volcanoes, the solar radiation is absorbed, which generated an increase in temperature and local climate change, like desertification or the inhibition of pluvial precipitation,» Degaldo told SciDev.net in an interview.
Availability of resources such as usable water will also depend on changing rates of precipitation, with decreased availability in many places but possible increases in runoff and groundwater recharge in some regions like the high latitudes and wet tropics.
«Since the AR4, there is some new limited direct evidence for an anthropogenic influence on extreme precipitation, including a formal detection and attribution study and indirect evidence that extreme precipitation would be expected to have increased given the evidence of anthropogenic influence on various aspects of the global hydrological cycle and high confidence that the intensity of extreme precipitation events will increase with warming, at a rate well exceeding that of the mean precipitation..
As temperatures go up, on average the ratio between precipitation and evaporation goes down, increasing droughts.
In commenting on their findings, the three researchers write that «the large number of stable glacier termini and glacier advances is influenced by positive glacier mass balances in the central Karakoram during the last decade,» citing Gardelle et al. (2012, 2013) and Kaab et al. (2012), which they indicate is «induced by increasing winter precipitation and decreasing summer temperatures since the 1960s,» citing Archer and Fowler (2004), Williams and Ferrigno (2010), Bolch et al. (2012), Yao et al. (2012) and Bocchiola and Diolaiuti (2013).
On average in the United States, the amount of rain falling during the heaviest 1 percent of rainstorms has increased nearly 20 percent during the past 50 years — almost three times the rate of increase in total precipitation.4, 5 The Midwest saw an even larger average increase of 31 percent, surpassed only by the Northeast (at 67 percent).4 Scientists attribute the rise in heavy precipitation to climate change that has already occurred over the past half - century.6
On a tangent, the claim is made that tropical precipitation has increased, but the IPCC said in AR4 that it had decreased.
For the entire Northern Hemisphere, there is evidence of an increase in both storm frequency and intensity during the cold season since 1950,1 with storm tracks having shifted slightly towards the poles.2, 3 Extremely heavy snowstorms increased in number during the last century in northern and eastern parts of the United States, but have been less frequent since 2000.11,15 Total seasonal snowfall has generally decreased in southern and some western areas, 16 increased in the northern Great Plains and Great Lakes region, 16,17 and not changed in other areas, such as the Sierra Nevada, although snow is melting earlier in the year and more precipitation is falling as rain versus snow.18 Very snowy winters have generally been decreasing in frequency in most regions over the last 10 to 20 years, although the Northeast has been seeing a normal number of such winters.19 Heavier - than - normal snowfalls recently observed in the Midwest and Northeast U.S. in some years, with little snow in other years, are consistent with indications of increased blocking (a large scale pressure pattern with little or no movement) of the wintertime circulation of the Northern Hemisphere.5 However, conclusions about trends in blocking have been found to depend on the method of analysis, 6 so the assessment and attribution of trends in blocking remains an active research area.
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