Sentences with phrase «melt runoff»

«In previous tests, we found snow melt runoff was positively correlated with average air temperatures [increases] throughout the winter, but correlations don't always necessarily mean that one thing causes another,» Dudley told LiveScience.

I believe India, Pakistan, Kashmir, Nepal, China will feel the full effect of lost glacier melt runoff that feeds major rivers in their part of the world and provide irrigation and drinking water for tens of millions of people.

Freshwater flux from Greenland is composed of melt runoff from ice and tundra runoff as well as ice discharge («calving» of icebergs).

Black ice on roads, which takes on the color of the pavement below it, forms when precipitation freezes on impact or melted runoff refreezes.

Not exact matches

The study suggests that up until 1997, whenever the ice caps and glaciers melted, the runoff would be filtered through a layer of older snow called the «firn» and trickle down to the ice surface, where it would freeze again, allowing the glaciers and ice caps to grow each winter.

To catch the runoff from the melted snow, residents had wisely built a damn, but it was inefficient, providing water for only a few dozen families, and stirring up strife between neighbors desperate for its live - saving waters.

They also used a physically based computer model of the hydrologic cycle, which takes daily weather observations and computes the snow accumulation, melting, and runoff to estimate the total snowpack in the western U.S.

Additionally, as the state's snowpack melts earlier because of warming, Cayan said, there is more runoff from higher elevation, which increases flooding.

A shorter period covered by snow, more spring rain and faster snow melt can combine to release large amounts of runoff that have the potential to stress urban hydrologic systems and cause flooding in urban areas.»

Precipitation was very important in the summer and the winter, when rains and melting snow boosted runoff and delivered nitrogen and phosphorus, which algae use as food sources, to the lake.

They knew the fire had been accidental, yet they found classic signs of arson: large, shiny blisters on wood resembling alligator skin, chipping concrete, and melted metal doorway thresholds, all typically attributed to accelerant and accelerant runoff, resulting in excessively high heat.

The discovery of widespread melting came after hydrologist Åsa K. Rennermalm of Rutgers University, New Jersey, noticed that stream runoffs at her field site in west Greenland were unusually heavy.

Northwest Greenland experienced record melt, setting summer records for surface temperatures, production of meltwater, and total runoff.

The lakes receive a large amount of runoff in the spring from the melting snowpack.

It is also likely to affect the ability to control floods, as snowpack that melts earlier in the year increases downhill runoff.

And «ponding» is also a risk with this type of roof design, which can occur when snow is heated to melt off but runoff backs up rather than flows and eventually causes elastic fabric to stretch and tear.

Melt water runoff from a melting of the Greenland Ice Sheet is a potentially major source of freshening not yet included in the models found in the MMD (see Section 8.7.2.2).

The thickness of the remaining, multi-year ice, along with its geographic location, will make it more difficult to melt than the ice that was spread across the Arctic, and exposed to Pacific and Atlantic ocean currents, along with runoff from fresh water rivers.

The hike through the valley leads you over rocks, streams, and rivers created by the runoff of snow and the melting of ice from both the Hooker Glacier and those glaciers hanging off Mount Sefton.

Which leads me to another question — the melting glacial / Greenland / Antarctic ice water is depleted in CO2 (check out the bubbles in your ice cubes)-- how much additional CO2 is being sequestered by this runoff into the oceans, and what happens to CO2 increase when we run out of glaciers?

This is enough energy to melt approximately 7.5 gm of ice, which when added to the condensate yields a total of 8.5 gm of potential runoff».

Pacific water, ice - melt, precipitation and river runoff are distinct sources of freshwater to the Canada Basin.

Ice melt, precipitation and runoff are all increasing under the current climatic trends31, 37, and are altering the freshwater budget of the Arctic Ocean.

Runoff from steep ice - cliffs, or through subglacial flow driven by water percolating through pores or fractures, will convert a high fraction of melting into ablation.

Even worse, loss of summer glacier runoff will mean a collapse of rice and wheat agriculture in the northwest of the country as Himalayan glaciers continue to melt (current estimates are as high as 80 % loss within 30 years, and runoff is already in decline).

There are some large rivers dumping into the artic from Siberia, and Siberia has been very cold this winter, so the river runoff is less likely to melt the ice.

It is reasonable to assume that the freshwater input will continue to increase in the future because the earth is warming, causing increasing ice melt and increased precipitation (both over ocean and over land, which yields larger river runoff to the ocean).

What's been published correlating summer and winter Siberian temperature with river runoff temperature and the following seasons» Arctic ice melt?

From recent research, I would suggest that this is entirely plausible; I could cite several examples of substantial increases (runoff, glacier melt, precipitation, sea - ice loss) which, collectively, amount to a real net increase in the Arctic freshwater budget.

Finally, if the North American hydrologic cycle is enhanced, and / or Greenland's southern ice caps melt, the increased fresh water runoff from land areas could dilute the ocean surface water and critically reduce its salinity.

As runoff from melting glaciers increases and warming seawater expands, sea level could rise as much as six feet, inundating low - lying coastal areas and islands.

With the model you can:... Analyse changes to river flow, runoff, soil moisture, groundwater recharge, snow melt, frost days and irrigation demand Simulate the impacts anywhere in the world Output the results in a range of graphic formats....»

Runoff from the melting of ice sheets (Section 10.3.3) is not included here.

But there are risks that the snowpack could melt faster than the reservoirs can handle the runoff.

During the rainy season or the season of melting snow, any groundwater contribution is masked by heavy surface runoff and shallow aquifer effects.

Also the site does inform that the graphs are calculated and may have flaws, they do not account for snow melt or runoff.

Because a large share of the runoff in the glacial water systems comes from melting, most of this runoff, up to 80 %, takes place in the summer.

Alpine runoff throughout the Pacific Northwest is increasing in the winter (Nov. - March), as more frequent rain on snow events enhance melting and reduce snow storage.

As glacier area is lost there will be a long term decline in glacier runoff and alpine streamflow during the melt season.

Eventually the resulting decline in glacier extent reduces the area available for melting causing a decrease in glacier runoff.

Unlike non-glacier runoff, glacier runoff correlates better with temperature than precipitation, due to the dominant role of glacier melt compared to precipitation in summer runoff from glacierized basins.

The initial response is an increase in glacier melt rate enhancing glacier runoff, while the glacier extent is still substantial in comparison to previous size.

There are two changes in glacier runoff that occur as a result of warming and enhanced glacier melt.

A continuing trend in glacier loss will seriously decrease the water reserves stored as ice, reducing melt season runoff.

The forecast thus is given at the start of the melt season and provides an assessment of the amount of glacier runoff that will be generated.

However, a large majority of streams in glaciated basins in BC showed a statistically significant decrease in August streamflow during 1976 to 1996, which suggests that these glaciers even with increased melt rates are providing less runoff (Stahl and Moore, 2006).

The combination of snow melt, glacial melt and rainfall water sources provides for reliable runoff in these basins.

Upcoming rains will bolster spring runoff (but probably also melt quite a bit of snowpack; see below).

Covering an area of 30,000 km2 and 48 % of BC's gauged systems glacier - melt moderates inter-annual variability in streamflow and helps to maintain higher runoff volume in times of extreme warm and dry conditions.

This loss in melt extent is reducing glacier runoff and summer alpine streamflow.