Sentences with phrase «as less precipitation»

As the climate changes in response to global warming, longer and more severe droughts are projected for the western US The resulting dry conditions will increase the pressure on groundwater supplies as more is pumped to meet demand even as less precipitation falls to replenish it.

Not exact matches

Current climate change models indicate temperatures will increase as long as humans continue to emit greenhouse gases into the atmosphere, but the projections of future precipitation are far less certain.

«Will it gain more as a result of increased precipitation or will it gain less due to decreasing precipitation?»

They are more likely to fail in dryer regions with less frequent and predictable precipitation, such as the Great Plains, where environmental conditions limit production of bioenergy grasses.

In many of the wood frog populations studied, researchers found evidence of interacting temperature and precipitation influencing population size, such as warmer summers having less of a negative effect in areas that received more precipitation.

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.

As ocean acidification proceeds, carbonate becomes less and less abundant, so at one point the carbonate concentration in the water is limiting the precipitation of calcium carbonate and organisms have a harder time to make their shell and skeleton since one of the bricks needed to make the wall is becoming less and less abundant.

It's that less winter precipitation is falling as snow, according to a new Climate Central analysis.

Less winter precipitation falling as snow is bad news for water supplies and wildfires out West and the financial fate of ski resorts across the country.

Except that GHG forcing + cooling aerosol forcing results in less precipitation globally in general than reduced GHG forcing that produces the same global average temperature, as found in «Climate Change Methadone» elsewhere at RC.

As Isaac says, global mean precipitation is a less useful summary statistic than global mean temperature, if you are interested in what life will be like in a doubled CO2 world.

Most of the West's surface water comes from snowpack, which is declining as more precipitation falls as rain and snowpack melts earlier, leaving less water available for summer when it is needed most.

For mush less academic reasons, I agree that tree rings are not good proxies for temperature, since tree rings are also used as proxies for precipitation.

4) Actually, Antarctica (168 mm year continental average) does recieve less precipitation than the Arctic (< 500 mm per year average), with the highest most central regions of Antarctica receiving 50 mm per year compared to < 100 to 200 mm per year for central Greenland (described as the driest part of the Arctic).

Warmer air not only evaporates more water, it's less inclined to release it as precipitation.

Snowfall varies across the region, comprising less than 10 % of total precipitation in the south, to more than half in the north, with as much as two inches of water available in the snowpack at the beginning of spring melt in the northern reaches of the river basins.81 When this amount of snowmelt is combined with heavy rainfall, the resulting flooding can be widespread and catastrophic (see «Cedar Rapids: A Tale of Vulnerability and Response»).82 Historical observations indicate declines in the frequency of high magnitude snowfall years over much of the Midwest, 83 but an increase in lake effect snowfall.61 These divergent trends and their inverse relationships with air temperatures make overall projections of regional impacts of the associated snowmelt extremely difficult.

In regards to precipitation, it was relatively dry this month as most of the region received less than 50 percent of normal precipitation and only a few isolated areas received at least 150 percent of normal precipitation.

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 if there's less precipitation that could mean less snow cover as well - on the short time scales of a year or two while the effect is still being felt.

If we keep burning fossil fuels at our current rates, food may become harder and harder to grow in many places — as even slight changes in long - established precipitation and temperature patterns can wreak havoc on certain fruits and vegetables — and what does grow could be less and less nutritious.

With some exceptions, the tropics will likely receive less rain (orange) as the planet warms, while the polar regions will receive more precipitation (green).

Snowpack is melting earlier as winter and spring temperatures rise, and in most states an increasing percentage of winter precipitation is falling as rain, meaning there is often less snowpack to begin with.

Importantly, the changes in cereal yield projected for the 2020s and 2080s are driven by GHG - induced climate change and likely do not fully capture interannual precipitation variability which can result in large yield reductions during dry periods, as the IPCC (Christensen et al., 2007) states: ``... there is less confidence in the ability of the AOGCMs (atmosphere - ocean general circulation models) to generate interannual variability in the SSTs (sea surface temperatures) of the type known to affect African rainfall, as evidenced by the fact that very few AOGCMs produce droughts comparable in magnitude to the Sahel droughts of the 1970s and 1980s.»

N (1) Natural mechanisms play well more than a negligible role (as claimed by the IPCC) in the net changes in the climate system, which includes temperature variations, precipitation patterns, weather events, etc., and the influence of increased CO2 concentrations on climatic changes are less pronounced than currently imagined.

Winters are shorter, fewer cold records are set, more precipitation is falling as rain and less as snow — although whopper snowstorms are even more likely in some places — and snowpacks are shrinking and melting earlier.

As water quantities slow with less precipitation, a concentration of nutrients and sediments reduces the water quality.

Overlay all of that on a trend of a changing climate, and the data are pretty clear that in the Sierra Nevada, over time, we're going to see more precipitation fall as rain and less as snow.

We had extreme cold weather (coldest on record, I believe) so what we usually get as rain fell as snow (in fact, less, because precipitation for December was actually unusually low).

Some predictions show that in the decades to come, more of California's mountain precipitation will fall as rain and less as snow.

To be useful in a risk context, climate change assessments therefore need a much more thorough exploration of the tails of the distributions of physical variables such as sea level rise, temperature, and precipitation, where our scientific knowledge base is less complete, and where sophisticated climate models are less helpful.

As concentrations of atmospheric greenhouse gases increase and the climate warms, it is expected that there will be increased precipitation in mid-latitudes and less formation of sea ice.

There is currently less skill in predicting precipitation and other variables compared to temperature although progress is expected to be made as a consequence of the Decadal Climate Prediction Project (DCPP) and other projects and investigations.

A hot - dry climate is defined as region that receives less than 20 inches (50 cm) of annual precipitation with approximately 6,300 cooling degree days (50 degrees F basis)[3,500 cooling degree days (10 degrees C basis)-RSB- or greater and where the monthly average outdoor temperature remains above 45 degrees F (7 degrees C) throughout the year.

Some of this is characteristic of La Niña... as the southern tier of the United States sees less precipitation during La Niña winters.»

«Within our lifetime, winters in Minnesota will become more like winters in Chicago — warmer with less snow and more precipitation coming as rain.»

For example, as temperatures warm, seawater absorbs less carbon dioxide, and as precipitation patterns change and plants grow (or die), they take up more (or less) carbon.

As many impacts are closely related to regional changes in precipitation that directly affect water and food, attribution of damages solely to temperature may be a less accurate approximation for regionally highly uneven forcings.

In the lower left graph, consecutive dry days are defined as the annual maximum number of consecutive days with less than 0.01 inches of precipitation.

Mixed - Humid - A mixed - humid and warm - humid climate is defined as a region that receives more than 20 inches of annual precipitation with approximately 4,500 cooling degree days (50 °F basis) or greater and less than approximately 6,300 cooling degree days (50 °F basis) and less than approximately 5,400 heating degree days (65 °F basis) and where the average monthly outdoor temperature drops below 45 °F during the winter months.

A warm - dry and mixed - dry climate is defined as a region that receives less than 20 inches of annual precipitation with approximately 4,500 cooling degree days (50 °F basis) or greater and less than approximately 6,300 cooling degree days (50 °F basis) and less than approximately 5,400 heating degree days (65 °F basis) and where the average monthly outdoor temperature drops below 45 °F during the winter months.