Sentences with phrase «increased precipitation intensity»

Because precipitation comes mainly from weather systems that feed on the water vapour stored in the atmosphere, this has generally increased precipitation intensity and the risk of heavy rain and snow events.

Increased precipitation intensity and variability is projected to increase the risks of flooding and drought in many areas (high confidence)[3.3.1].

They include soaring temperatures, declining late - season snowpack, northward - shifted winter storm tracks, increasing precipitation intensity, the worst drought since measurements began, steep declines in Colorado River reservoir storage, widespread vegetation mortality, and sharp increases in the frequency of large wildfires.

Not exact matches

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.

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.

This is addressed by evaluating change in global or large - scale patterns in the frequency or intensity of extremes (e.g., observed widespread intensification of precipitation extremes attributed to human influence, increase in frequency and intensity of hot extremes) and by event attribution methods.

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].

We know that precipitation intensity has been increasing (the amount of rain that falls in the most intense events) across the northern hemisphere — this was clear in the literature even before the Pall et al paper.

The assessment considered the impacts of several key drivers of climate change: sea level change; alterations in precipitation patterns and subsequent delivery of freshwater, nutrients, and sediment; increased ocean temperature; alterations in circulation patterns; changes in frequency and intensity of coastal storms; and increased levels of atmospheric CO2.

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.

He cited a recent analysis by scientists from the National Climatic Data Center that confirmed earlier studies showing a substantial increase already in the intensity of precipitation across the United States, interspersed by longer dry spells.

«Century of Data Shows Intensification of Water Cycle but No Increase in Storms or Floods Released: 3/15/2006 12:13:21 PM» (excerpt) A review of the findings from more than 100 peer - reviewed studies shows that although many aspects of the global water cycle have intensified, including precipitation and evaporation, this trend has not consistently resulted in an increase in the frequency or intensity of tropical storms or floods over the past Increase in Storms or Floods Released: 3/15/2006 12:13:21 PM» (excerpt) A review of the findings from more than 100 peer - reviewed studies shows that although many aspects of the global water cycle have intensified, including precipitation and evaporation, this trend has not consistently resulted in an increase in the frequency or intensity of tropical storms or floods over the past increase in the frequency or intensity of tropical storms or floods over the past century.

Understanding past changes in the characteristics of such events, including recent increases in the intensity of heavy precipitation events over a large part of the Northern Hemisphere land area (3 — 5), is critical for reliable projections of future changes.

-- Increases in intensity and frequency of heat waves and extreme precipitation events (a category in which it includes droughts, floods, hurricanes and major storms)

«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..

resulting in increased severity and / or intensity of heat waves, heavy precipitation events, droughts, tropical cyclones and extreme high sea levels [AR4 WGI SPM, p. 8],

Increases in the frequency and intensity of extreme precipitation events are projected for all U.S. regions.

Given projected increases in the frequency and intensity of extreme precipitation events in the Midwest (Chapter 2: Our Changing Climate, Key Message 6), 57 it appears that sewer overflow will continue to constitute a significant current health threat and a critical source of climate change vulnerability for major urban areas within the Midwest.

precipitation, and intensity / time, and soil readiness to absorb rain — and much else — are going to affect how much soil moisture increases after the rain's done, versus how much of that rain ran off somewhere else.

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.

2: Our Changing Climate, Key Message 5).2 Regional climate models (RCMs) using the same emissions scenario also project increased spring precipitation (9 % in 2041 - 2062 relative to 1979 - 2000) and decreased summer precipitation (by an average of about 8 % in 2041 - 2062 relative to 1979 - 2000) particularly in the southern portions of the Midwest.12 Increases in the frequency and intensity of extreme precipitation are projected across the entire region in both GCM and RCM simulations (Figure 18.6), and these increases are generally larger than the projected changes in average precipitatIncreases in the frequency and intensity of extreme precipitation are projected across the entire region in both GCM and RCM simulations (Figure 18.6), and these increases are generally larger than the projected changes in average precipitatincreases are generally larger than the projected changes in average precipitation.12, 2

You would just need precipitation events to reduce in frequency but increase in intensity.

There are multiple studies associating extreme precipitation events with waterborne disease outbreaks and strong climatological evidence for increasing frequency and intensity of extreme precipitation events in the future.

Both (top right and bottom left) indicate that heavy precipitation events will increase in intensity in the future across the Midwest.

Although there is as yet no convincing evidence in the observed record of changes in tropical cyclone behaviour, a synthesis of the recent model results indicates that, for the future warmer climate, tropical cyclones will show increased peak wind speed and increased mean and peak precipitation intensities.

Under this scenario, peak precipitation rates are likely to increase by 25 % as a result of increases in maximum tropical cyclone wind intensities, which in turn cause higher storm surges.

Warmer waters increase storm intensity / precipitation and create coral bleaching, thus destroys the world's coral reef's, a ocean ecosystem «the rainforest of the ocean» and contains major food web's.

America's WETLAND Foundation Restore - Adapt - Mitigate: Responding To Climate Change Through Coastal Habitat Restoration PDF Coastal habitats are being subjected to a range of stresses from climate change; many of these stresses are predicted to increase over the next century The most significant effects are likely to be from sea - level rise, increased storm and wave intensity, temperature increases, carbon dioxide concentration increases, and changes in precipitation that will alter freshwater delivery.....

«The pervasive increase in water vapour changes the intensity of precipitation events with no doubt whatsoever,» Kevin Trenberth of the US National Center for Atmospheric Research told a meeting in January.

That additional moisture fuels increases in precipitation intensity.

Changes in temperature and precipitation patterns increase the frequency, duration, and intensity of other extreme weather events, such as floods, droughts, heat waves, and tornadoes.

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].

Such drying is a feature of human - caused climate change in that human - forced warming due to fossil fuel burning increases evaporation rates and related stress to forests even as it drives fundamental alterations to precipitation patterns that can substantially worsen drought and wildfire intensity.

Anticipated changes include melting glaciers and polar ice, more extreme precipitation events, agricultural impacts, wildfires, heat waves, increased incidence of some infectious diseases, sea level rise, ocean acidification, and increased hurricane intensity.

Changes in some types of extreme events have already been observed, for example, increases in the frequency and intensity of heat waves and heavy precipitation events (see FAQ 3.3).

• Increases in very hot days and heat waves, • Increases in Arctic temperatures, • Rising sea levels, • Increases in intense precipitation events, and • Increases in hurricane intensity

Although precipitation deficits are a prerequisite for the moisture deficits that constitute «drought» (by any definition)(15), elevated temperatures can greatly amplify evaporative demand, thereby increasing overall drought intensity and impact (16, 17).

In concert with the results for increased extremes of intense precipitation, even if the wind strength of storms in a future climate did not change, there would be an increase in extreme rainfall intensity.

• Increasing the intensity of extreme events, like hurricanes, extreme precipitation and flooding

Gavin said upfront: «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».

We know that precipitation intensity has been increasing (the amount of rain that falls in the most intense events) across the northern hemisphere — === Really, more precip?

According to this latest study, an 80 year build - up of atmospheric CO2 at 1 % / yr (compounded) leads to roughly a one - half category increase in potential hurricane intensity on the Saffir - Simpson scale and an 18 % increase in precipitation near the hurricane core.

Huntington is the author of a recent review of more than 100 peer - reviewed studies showing that although many aspects of the global water cycle — including precipitation, evaporation and sea surface temperatures — have increased or risen, the trend can not be consistently correlated with increases in the frequency or intensity of storms or floods over the past century.

Based on our published results and as well as those of other modeling groups, we conclude that at the global scale: a future increase in tropical cyclone precipitation rates is likely; an increase in tropical cyclone intensity is likely; an increase in very intense (category 4 and 5) tropical cyclones is more likely than not; and there is medium confidence in a decrease in the frequency of weaker tropical cyclones.

Key findings from these experiments include: fewer tropical cyclones globally in a warmer late - twenty - first - century climate (Figure 8), but also an increase in average cyclone intensity, the number and occurrence days of very intense category 4 and 5 storms in most basins (Figure 9) and in tropical cyclone precipitation rates (Figure 10).

This event is associated with cold and dry conditions increasing with latitude in the North, temperature and precipitation influences on tropical and boreal wetlands, Siberian - like winters in much of the North Atlantic, weakening of monsoon intensity, and southward displacement of tropical rainfall patterns.

«Many anticipated adverse impacts of climate change including sea level rise, higher temperatures, enhanced monsoon precipitation and run - off, potentially reduced dry season precipitation, and an increase in cyclone intensity would in fact aggravate many of the existing stresses that already pose a serious impediment to the process economic development of Bangladesh.

[A] nthropogenic climate change is expected to lead to a greater incidence of high - intensity hurricanes, which together with rising sea level, will produce increased risk of storm surge flooding, while hurricanes are projected to produce substantially more precipitation as the atmosphere and oceans warm.

The SREX clearly found a major increase in heat waves and extreme precipitation events, and in order to adapt to these occurrences, the intensity and frequency of which is likely to increase, it would be essential to take in hand urgently certain low regrets measures.