Sentences with phrase «snowpack at»

But in a year with the snowpack at just a little over 30 percent, the natural recharge this year will be minimal, he said.

Mercury chemistry in the snowpack at Summit Station, Central Greenland, and implications for the study of the transfer function

Density of the snowpack at this time of year is assumed to be 0.5 Mg / m3.

With the 2000/01 winter season having the lowest snowpack at the USDA Snotel system in the North Cascades it is evident that the upcoming year will be one of negative annual balances.

In the winter despite a small increase in precipitation, retained snowpack at the end of the winter has declined.

With the Sierra snowpack at 4 % of normal as of May 20, Californians will desperately need what little water remains behind its dams this summer.

Finally, I show that reduced snowpack at Crater Lake and the surrounding Cascade mountains is a huge concerned for the water supply for Oregon cities downstream from the park.

This ratio is dependent only on temperature rise, which reduces snowpack at all elevations for a given amount of precipitation.

April 1 snowpack at moderate elevations is assessed from seven long - term Snow Course and now SNOTEL stations; Rainy Pass, Lyman Lake, Stevens Pass, Miners Ridge, Stampede Pass and Park Creek and Fish Lake monitored by the USDA.

The mean last date of snowpack at the site is June 5.

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.

A new study of long - term snow monitoring sites in the western United States found declines in snowpack at more than 90 percent of those sites - and one - third of the declines were deemed significant.

Fernie has received 116 cm of snow season to date, with 14 cm of that coming in the last 7 days, currently the settle snowpack at the Bear Plot is at 67 cms.

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

Warming temperatures over the next century, especially during spring, are likely to reduce snowpack at mid and low elevations.

Much of the precipitation that fell across the state during the season was rain and not snow, with much below average snowpack at the end of the season.

A new study of long - term snow monitoring sites in the western United States found declines in snowpack at more than 90 percent of those sites — and one - third of the declines were deemed significant.

Not exact matches

The state's snowpack reserves, which typically supply California's farmers and residents with roughly a third of their water, lingered at their lowest level in history in 2015.

At a low - key night slalom race on Jan. 17 in Westendorf, Austria, Miller stood for two hours on a frigid snowpack, signing autographs and posing for pictures.

The snowpack stood at just 5 percent of its average level.

It's Martin Schneebeli, the resident snowpack structures expert, commuting to the SLF's field research area, a series of cold labs at the top of a mountain directly above the town.

Conversely, in autumn, the amount of open water in the Beaufort and eastern Chukchi Seas appeared to be very influential in affecting the temperature at Utqiagvik and the subsequent timing of the onset of snowpack.

«You don't necessarily have to have a «dirtier» snowpack to make it dark,» said lead author Marco Tedesco, a research professor at Columbia University's Lamont - Doherty Earth Observatory and adjunct scientist at NASA Goddard Institute of Space Studies.

«Increased runoff caused by dust on snowpack acts as a major leak in the reservoir system,» says Thomas Painter, a professor of geography at the University of Utah.

Depth hoar crystals are formed at the base of a snowpack when water vapor sublimates onto existing snow crystals.

This time, no return to cooler period Tim Barnett, a climatologist at Scripps Institution of Oceanography, said the new results appear to agree with his earlier work that used climate models to show humans» greenhouse gas emissions have contributed to declining snowpack in the western United States.

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.

Snowpack in the northern Rocky Mountains has shrunk at an unusually rapid pace during the past 30 years, according to a new study.

«The Northern Rockies have shown the greatest response to warming in terms of snowpack decline,» said lead author Greg Pederson, a research scientist at the U.S. Geological Survey's Northern Rocky Mountain Research Center.

As for the snowpack, the models show it decreasing by at least 30 percent.

The snowpack turned to slush even at the 3.2 - kilometre - high Summit Station, at the apex of Greenland's ice sheet.

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.

«When snow first falls, snow grains are quite small, and as snowpack ages, and particularly for warmer snowpack, you get consolidation of those grains into larger clumps,» said Sarah Doherty, a researcher at the University of Washington who co-authored the paper.

Singer suggested a regional decline in snowpacks and less groundwater recharge at the mountain fronts has negatively affected water resources.

«While reduced snowpack has been predicted for some time, they find that the shift toward low snow years and increasing water stress in the Northern Hemisphere is «imminent,»» said Andrew Fahlund, executive director of the Water in the West program at Stanford.

At the end of this winter, the state recorded its all - time lowest snowpack, which measured only 6 percent of normal on April 1.

Warmer global temperatures will lead to shallower snowpack in many mountainous areas, says Keith Musselman, a hydrologist at the National Center for Atmospheric Research in Boulder, Colorado.

The study also looked at the amount of snowpack runoff during the warmer season, compared to what has been seen in the past.

In western states where snowpack is critical, we found decreases in the percent of winter precipitation falling as snow at elevations between sea level and 5,000 feet.

It needs to be clarified here, that it is hypothetically possible to get more snowfall and snowpack in a globally warming world (at least for a while), due to increased precipitation (which is predicted in a warming world, esp for the higher latitudes) coming down as snow.

Snowpack is at 6 percent of normal for this time of year with the southern and central Sierra Nevada mountains registering a goose egg in terms of snow on the ground.

At the end of March drought remained entrenched in the western United States, where mountain snowpack was record low for many locations in the Cascade and Sierra Nevada Mountains.

Snowpack accumulated at high elevations tends to be more stable and persist longer than at low elevations, largely as a result of colder temperatures at high elevations.

In the Rocky Mountains, spring (February - March) warming since the 1980s has been largely responsible for recent snowpack declines at mid - and low - elevation sites (Pederson et al. 2013b).

Snowpack in the Sierra Nevada was just slightly above normal at month's end.

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).

Peter Gleick, a climate expert at the Pacific Institute, warned that seven days of sustained warmth could melt as much as 30 percent of California's snowpack.

The observed melting is greatest at lower elevations, a trend matched in snowpack declines across the Western U.S.

Meanwhile, Southern California almost burns up, Atlanta doesn't have water, the snowpack in California is non-existent leading to water wars for the rest of this decade at least, and the United States has no coherent energy policy whatsover.

The Sierra Nevada snowpack was at its lowest recorded... Read More.