Sentences with phrase «precipitation patterns such»

The inability of global climate models to match the timing or placement of short - term or regional precipitation patterns such as the West African monsoon may be alleviated by «downscaling» to use smaller scale climate models with increased area resolution.

Not exact matches

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.
In a paper published last month in the SIAM Journal on Applied Mathematics, author Jonathan A. Sherratt uses a mathematical model to determine the levels of precipitation within which such pattern formation occurs.
An additional 10 to 48 percent of land would see its climate zones disappear, replaced by patterns of temperature and precipitation now occurring elsewhere, such as rain forest becoming savanna or evergreen forest becoming deciduous.
Some modeling studies of such effects have suggested drought in the western U.S. or changes in precipitation patterns across Europe.
In addition, global sea level can fluctuate due to climate patterns such as El Niños and La Niñas (the opposing phases of the El Niño Southern Oscillation, or ENSO) which influence ocean temperature and global precipitation patterns.
NEON collects and produces data on precipitation patterns, soil and groundwater dynamics, interactions with vegetation, and processes such as nutrient cycling and food web dynamics in aquatic ecosystems to support the comprehensive study of water cycles throughout diverse ecosystems.
On decadal time scales, annual streamflow variation and precipitation are driven by large - scale patterns of climate variability, such as the Pacific Decadal Oscillation (see teleconnections description in Climate chapter)(Pederson et al. 2011a; Seager and Hoerling 2014).
In terms of economic impact, changes in temperature and precipitation patterns may result in damage to tourism and other strategic economic sectors with growth potential such as high - value - added agriculture.
For example, reflecting sunlight would likely reduce the Earth's average temperature but could also change global circulation with potentially serious consequences such as changing storm tracks and precipitation patterns throughout the world.
Averaging smoothes out day - to - day and year - to - year natural weather variability and extremes, removing much of the chaotic behavior, revealing any underlying long term trends in climate, such as a long term increase or decrease in temperature, or long term shifts in precipitation patterns.
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.
And when temperature changes, maybe other things change, too, such as precipitation patterns or animal habitation (or the lack thereof).
The most recent report from the Intergovernmental Panel on Climate Change states with «very high confidence» that «the health of human populations is sensitive to shifts in weather patterns and other aspects of climate change» due to direct effects — such as changes in temperature and precipitation or occurrence of heat waves, floods, droughts, and fires — as well as indirect effects — through crop failures, shifting patterns of disease vectors, or displacement of populations.
So the emphasis shifted to poleward shift of climate zones with particular emphasis on rain and desert belts moving such that agriculture is disrupted by great changes in precipitation patterns.
E. 7.3 Describe how global patterns such as the jet stream and ocean currents influence local weather in measureable terms such as temperature, air pressure, wind direction and speed, and humidity and precipitation.
Global warming leads to rising temperatures of the oceans and the earth» surface causing melting of polar ice caps, rise in sea levels and also unnatural patterns of precipitation such as flash floods, excessive snow or desertification.
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.
Instead, at these locations the general pattern is that such a relationship is found to hold up to about 12 °C, but between 12 and 24 °C extreme precipitation appears to increase more strongly with warming.
Generally, a significant cooling of the surface occurs in the first weeks after major volcanic eruptions, lasting for one to two years and leading to modified patterns of precipitation, surface pressure and the teleconnection patterns, such as the Arctic Oscillation (AO), North Atlantic Oscillation (NAO)
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.
Changing climatic variables relevant to the function and distribution of plants include increasing CO2 concentrations, increasing global temperatures, altered precipitation patterns, and changes in the pattern of «extreme» weather events such as cyclones, fires or storms.
These aspects of precipitation generally exhibit large natural variability, and El Niño and changes in atmospheric circulation patterns such as the North Atlantic Oscillation have a substantial influence.
Data on past precipitation patterns around the globe could help modellers to solve some of these issues, but such measurements are scant in many areas.
If a shift in the hydrological cycle were to lower the response in the global mean temperature, there may be a poisonous sting in such a negative feedback: changes in the precipitation patterns.
Current models of climate change include sea level rise, land degradation, regional changes in temperature and precipitation patterns, and some consequences for agriculture, but without modeling the feedbacks that these significant impacts would have on the Human System, such as geographic and economic displacement, forced migration, destruction of infrastructure, increased economic inequality, nutritional sustenance, fertility, mortality, conflicts, and spread of diseases or other human health consequences [135,136].
For instance, along with possible carbon fertilisation effects and a longer growing season (Chapter 5), many mid - and upper - latitude areas see quality - of - life benefits from winter warming, and some areas welcome changes in precipitation patterns, although such changes could have other social consequences.
When skeptics refute that many shrinking glaciers, such as the ice pack on Kilamanjaro, are due to changing winds and precipitation patterns rather than warming, they get ignored.
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