Sentences with phrase «from snowpack»

That change is going to be an issue for people out West because a lot of people depend on water from the snowpack in the mountains.

Species that live downslope will also be hurt by changes on mountaintops; the Sierra Nevada mountain yellow - legged frog, for example, depends on runoff from snowpack year - round to support its three - to four - year life stage as a tadpole, and earlier spring snowmelt runoff caused by global warming may leave this hardy, once - abundant creature high and dry in the summertime.

So far, though, only minor flooding has resulted from snowpack melting in recent days.

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.

NOx emission from snowpack at the WAIS - Divide site and its impact on local tropospheric photochemistry.

While it is often occurring in remote regions, ongoing change with the cryosphere has impacts on people all around the world: sea level rise affects coastlines globally, billions of people rely on water from snowpack, and the diminishing sea ice that covers the Arctic Ocean plays a significant role in Earth's climate and weather patterns.

The snow readings are important during this time of the year, as several locations depend on the meltwater from that snowpack for drinking

For this reason, most cities stick with traditional sources of freshwater, such as underground aquifers, rivers, lakes, and runoff from snowpack.

The snow readings are important during this time of the year, as several locations depend on the meltwater from that snowpack for drinking water and irrigation through the drier and hotter summer months.

«Water managers and state and federal agencies can make decisions about whether cloud seeding is a viable option to add additional water to supplies from snowpack in the mountains.»

This melting snow comes from snowpack, the high elevation reservoir of snow which melts in the spring and summer.

He had hoped a 15 - inch layer would break loose from the snowpack and slide.

According to stream gages, as much as 58 percent of the water in the Gunnison River — a prominent Colorado River tributary — comes not from snowpack on the peaks above but from groundwater.

Warm springtime temperatures, prolonged drought in the West, gusty winds and shifts in precipitation from snowpack to rainfall marked the 2015 season, according to the National Interagency Fire Center.

Since 1915, the average snowpack in western states has declined by between 15 and 30 percent, the researchers say, and the amount of water lost from that snowpack reduction is comparable in volume to Lake Mead, the West's largest manmade reservoir.

The river begins its journey from the snowpack in the central Rocky Mountains and travels south 1,450 miles (2,330 kilometers), draining an expansive yet arid area that encompasses parts of seven US and two Mexican states.

Not exact matches

The reasons for this are many: less cold water from Sierra snowpack, less cold freshwater being released from the Delta due to farming needs and other water policies, warm waters caused by El Nino flowing into the Bay, and other variables.

The Bureau of Reclamation will revisit the situation in August, after the spring and summer runoff from mountain snowpack has found its way into the reservoirs.

When the temperature beneath a layer of snow crystals is significantly higher than the temperature above, ice from crystals lower in the snowpack sublimes — that is, vaporizes directly without melting — and then refreezes onto overlying crystals.

The excessive heat increased the rate of water loss by evaporation and caused precipitation to shift from snow to rain, leaving a meager snowpack and parched reservoirs.

When the researchers took density of snow into account, they found that ice shelves lost about five times more ice by submarine melting than they gained from new surface snowpack.

Changes in flow patterns of warm Pacific Ocean air from the south were driving earlier spring snowmelt, while decreasing summer sea ice had the greatest influence on later onset of snowpack in the fall.

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

But dust from the Sahara also blows up onto the snowpack in the Alps, causing early melting.

Brooks and Harpold looked at snowpack data from more than 400 locations around the West, from the humid Pacific Northwest to the arid desert southwest.

Researchers have evaluated different mechanisms that could account for declining snowpack in a warming world: earlier onset of snowmelt, a change in melt rates and shifts from snow to rain under certain conditions.

Pederson says he's confident his tree - ring results are accurate in part because during a brief period of overlap during the 20th century, the snowpack depth derived from the tree rings and modern observations look like «photocopies» of one another.

Their work, published yesterday in the journal Science, suggests that the plummeting snowpack could have serious consequences for more than 70 million people who depend on water from the runoff - fed Columbia, Colorado and Missouri rivers.

Sampling 7,000 - year - old ice cores as well as snowpack dating from 1969 through the mid-1990s, Barbante's team found that concentrations of the metals had risen almost sevenfold since the mid-1970s, when catalytic converters first came into widespread use.

To see how quickly these particles are accumulating in the atmosphere, Carlo Barbante, an environmental chemist at the University of Venice, looked at snowpack and ice cores brought from Greenland.

Like all giant sequoias, these five have a short growing season and depend on melting snowpack from the Sierra Nevada mountains for many months of the year.

Levels of snowpack are 12 percent of average for this time of year, down from 20 percent on Jan. 3 (E&EN ews PM, Jan. 3).

Of course, long before climate change threatened the snowpacks, unbridled trapping and poisoning had driven most wolverines from the continental U.S. Wolverines hung on in the northern Rockies, but the thin populations in Colorado, Michigan, Minnesota and the Northeast were gone by the middle of the 20th century.

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

The study examined what is likely to be seen in terms of precipitation, snowpack accumulation and water runoff over the next century, versus the same data for the years from 1976 and 2005.

The cleanest samples they collected were from northern Canada, with overall levels of black carbon, or soot, similar to that of Arctic snowpack.

It shows snowpack data from a network of monitoring sites called SNOTEL, as measured in snow water equivalent.

Most studies agree that general declines in snowpack across the West have resulted from warming spring temperatures (Mote 2003; Hamlet et al. 2005; Mote et al. 2005; Abatzoglou 2011; Kapnick and Hall 2012; Pederson et al. 2013a; Lute et al. 2015); however, declines in winter precipitation may also be important (Clow 2010).

However, drought conditions expanded and intensified in parts of the Northwest due to lack of snowpack from the winter and spring seasons and in the Northeast.

In the Cascades and northern Great Basin, snowpack ranged from 100 % to nearly 200 % of normal.

Negative: Lower and shorter duration snowpack and shift from snow to rain - dominant precipitation regimes resulting in less water available in summer

Negative: Combined with less available water from reduced and shortened snowpack, drier summers could reduce or shift growing season

Thus, the fire season in Montana typically extends from late June through October at lower elevations, with shorter seasons at higher elevations where snowpack can persist into July (Keane et al. forthcoming).

He added that climate change is already reducing water supplies from the Sierra Nevada snowpack and the Colorado River watershed.

While this year's snowpack is fairly healthy, in a world warming from increasing greenhouse gases, the early spring snowpack has been declining over the long run.

This varies from year to year, and the onset of the fire season can be delayed by abundant mountain snowpack or a cool and wet start to summer.

April 10, 2017 • While the deep snowpack in California's mountains is easing drought concerns, there are still people in the state's rural Central Valley who don't have water running from their taps.

With the Central Valley barren, underground aquifer drained, and Sierra snowpack entirely depleted, most «Mojavs,» prevented by both armed vigilantes and an indifferent bureaucracy from freely crossing borders to lusher regions, have allowed themselves to be evacuated to internment camps.

With cooperation from Mother Nature, we usually have a healthy snowpack for great skiing through mid...

«If water from moist air condenses on a snowpack, 590 calories of heat are released by each gram of condensate.