Sentences with phrase «precipitations changes across»

We are beginning to sound like a broken record here, but again, it is impossible to present reliable future projections for precipitations changes across the U.S. (seasonal or annual) from a collection of climate models which largely can not even get the sign (much less the magnitude) of the observed changes correct.

«The sign of mean precipitation changes across the southern U.S. is inconsistent among models.

The CCC forecast of precipitation changes across the Unites States is equally extreme.

Not exact matches

Changing precipitation patterns helped Genghis Khan rise to power — and ride to victory across Eurasia

Recent Forest Service studies on high - elevation climate trends in the Pacific Northwest United States show that streamflow declines tie directly to decreases and changes in winter winds that bring precipitation across the region.

The research, published yesterday in the journal Proceedings of the National Academy of Sciences, is the first study to find the signal of climate change in global precipitation shifts across land and ocean.

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.

Some modeling studies of such effects have suggested drought in the western U.S. or changes in precipitation patterns across Europe.

His team also ran the models with predicted precipitation changes and arrived at similar conclusions, even though moisture levels can prompt more nuanced responses across species.

Since the evapotranspiration rates of the study's cropping systems held steady across several years of varying precipitation levels, the study also suggests that crop evapotranspiration rates may not be as sensitive to climate change as is currently assumed.

has decreased in winter, but no significant change in annual mean precipitation potentially because of very slight increases in spring and fall precipitation; precipitation is projected to increase across Montana, primarily in spring; slight decrease in summer precipitation; variability of precipitation year - to - year projected to increase

Rising temperatures and changing precipitation patterns will lead to relative changes in agricultural production, possibly spurring rural to urban migration, or migration across borders to seek more favorable conditions.

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...

It may well be that the West will luck out as rising greenhouse gases induce an equatorial warming, or an El Niño - like response, and the resulting circulation changes increase precipitation across the mid-latitudes.

Jerry's research team has developed and uses a simulation model, the Terrestrial Ecosystem Model (TEM), to consider the impacts of various aspects of global change — climate, chemistry of the atmosphere and precipitation, land cover and land use — on the structure and function of terrestrial ecosystems across the globe.

As for how this could be — and in light of the findings of the references listed above — Rankl et al. reasoned that «considering increasing precipitation in winter and decreasing summer mean and minimum temperatures across the upper Indus Basin since the 1960s,» plus the «short response times of small glaciers,» it is only logical to conclude that these facts «suggest a shift from negative to balanced or positive mass budgets in the 1980s or 1990s or even earlier, induced by changing climatic conditions since the 1960s.»

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 precipitation.12, 2

MRD Journal: Abstract: Rising temperatures and changing precipitation patterns across the Hindu Kush — Himalaya (HKH) region resulting from climate change have an influence on water resource availability and food security for the downstream population.

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.

Overall, the scientists found that precipitation extremes of different kinds will occur, with only small changes in the mean precipitation across the rainy season.

«[C] ommunities across the Nation are already experiencing a range of climatic changes, including more frequent and extreme precipitation events, longer wildfire seasons, reduced snowpack, extreme heat events, increasing ocean temperatures, and rising sea levels,» the report says.

Obviously, climate models whose hindcasts differ in sign from what is observed (Zhang et al., 2007), or which indicate that human influences are indistinguishable from natural changes (Sarojini et al., 2012) possess no skill in identifying a human - induced climate signal on observed precipitation across the U.S. and therefore should not be used to make future projections.

The unsubstantiated claim has been that human CO2 - induced climate change was (and is) producing dramatic changes in precipitation levels across the world.

Scientists also factored long - term, climate change trends into the three - month seasonal outlook by looking at the last 10 to 15 years of temperature and precipitation across the country.

In our presentation to the Science Policy Conference of the American Geophysical Union this summer, we even included a table listing the number of years into the future it would be before projected changes in precipitation across the U.S. rose above the level of nature variability.

El Niño Southern Oscillation (ENSO)-- The periodic change in sea surface temperatures in the tropical Pacific, known as ENSO, has an impact on temperatures and precipitation in the neighbouring contents and across the globe.

PRUDENCE RCM outputs showed non-linear relationships between mean maximum temperature and indices of drought and heatwave (Good et al., 2006), while changes in maximum 1 - day and 5 - day precipitation amounts were systematically enhanced relative to changes in seasonal mean precipitation across many regions of Europe (Beniston et al., 2007).

Pre-TAR AOGCM results held at the DDC were included in a model intercomparison across the four SRES emissions scenarios (B1, B2, A2, and A1FI) of seasonal mean temperature and precipitation change for thirty - two world regions (Ruosteenoja et al., 2003).9 The inter-model range of changes by the end of the 21st century is summarised in Figure 2.6 for the A2 scenario, expressed as rates of change per century.