Sentences with phrase «snowpack on»

Note the horizontal horizon marking the 2007 summer surface with 3.2 m of 2008 winter snowpack on top.

Increased global temperatures have reduced the annual snowpack on mountains around the West Coast.

The snowpack on the Sierra Nevada has generally peaked and begins to melt by the beginning of April.

Snowpack on April 1 has declined throughout the Northwest.

Figure 7 illustrates the long term impact of declining snowpack on North Cascade glacier mass balance.

This narrow range indicates that late in the ablation season the density of snowpack on North Cascade glaciers is uniform, and need not be measured to determine mass balance.

Table 2 contains the observed annual balance of glaciers in the basin and Figure 1 the observed August Snowpack on two of the glaciers.

In addition to the measured retreat we have measured the surface profiles of these glaciers, measured annual snowpack on the glaciers and annual ablation.

January 2017 was a stark exception, when a strong El Niño flipped the ridge - trough pattern, dumping record - breaking rain and snowpack on California while the east enjoyed a mild month.

More on precipitation and snowpack on this week's Climate Matters with Sean Sublette.

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.

Long - time Colorado residents know that St. Mary's glacier is a fragment of its former, frozen self, and that the snowpacks on even our 14ers are diminishing more quickly and more dramtically each year.

Not exact matches

But existing models of water flows don't provide the full range of possible outcomes: «A 50 - year rain can produce a 100 - year flood if it falls on a watershed that's already soaked or on snowpack or if it coincides with a storm surge.»

Ten days on, my curvy, hilly street is still mired in sooty, icy layers of snowpack.

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.

They rely on melting mountain snowpack for their water in the parched summer months.

Roughly 210 million people live in the region, and another 1.3 billion people who live downstream depend on rivers fed in part by glaciers and mountain snowpack.

Also an author on the fourth IPCC report, he had led a 2005 study on western snowpack levels that had also documented declines that were less dramatic than those in this new study.

«The snowpack we had this year was below average — around 70 percent of average towards the end of February, followed by one of the driest, warmest Marches on record,» said Tim Mathews, a fire meteorologist with the Rocky Mountain Coordination Center.

The year 2015 was the warmest on record for Oregon, resulting in low snowpacks and less water in many lakes and rivers.

Nevada and other Western states like California and Arizona are already struggling with the problem of diminishing snowpack in their own states, and rely on the Colorado River for much - needed water.

While we have long range climate predictions that show a decline of snowpack by the end of the century and short - range rain and snow forecasts, until now there has been little information on what to expect in the next two months to two years.

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.

The findings could serve as a warning sign that engineers need to design stronger structures, especially as glide avalanches may become more frequent: Warmer winters in the future may cause snowpacks to become, on average, wetter and denser than those seen in winters of recent decades.

«This extreme variability is increasingly imprinted on these freshwater, terrestrial, and marine systems, and this has caused them to become more synchronous with one another with a number of implications for fisheries, drought, snowpack, and tree growth.»

«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.

The snowpack melted about 50 days early because dust put massive stress on high mountain vegetation and lowland farms and fields.

Five times as much dust now falls on the snowpack in the Colorado Rockies as when the area was first heavily settled in the mid-19th century.

This snowflake was sampled shortly after it landed on snowpack.

«As we reach a tipping point and see our customary water storage system, the snowpack, melting more and earlier in the winter, systems that rely on snowmelt will need to be reevaluated and modified.»

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.

The molecular structure of snow crystals also emits energy back into the sky on clear nights — which serves to cool the snowpack.

It wasn't a shallow snowpack that caused tonnes of snow to roar into Longyearbyen on 19 December 2015, however.

Californians, on the other hand, should be watching the snowpack in the Sierra Nevada.

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.

Even in the rainy Pacific Northwest, we depend on yearly snowpack for drinking water and healthy river flows for fish, said Rolf Gersonde, who designs and implements forest restoration projects in the Cedar River Watershed.

In addition, the structure of the snowpack is changing: it is being transformed by increasingly warmer air temperatures and / or altered by rain - on - snow events.

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

And the GPS data is about 50 percent more accurate than one hydrologic model used to estimate snowpack in the Sierra Nevada and roughly on par with another one, Argus said.

Then, add to that reality the fact that nearly 400 million people rely, to some degree, on Himalayan snowpack and glacier melt to feed the Ganges and Brahmaputra Rivers which provide irrigation and drinking water for the heavily populated lands surrounding northern India.

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.

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.

Warming temperatures in the region are a major concern for water resources, as eastern Washington depends on its winter snowpack to supply reservoirs and streams come the warmer summer months.

-- In Montana, the Continental Divide exerts a marked influence on climate patterns and resulting snowpack:

On shorter time scales, and layered on top of Pacific Decadal Oscillation variation, the Pacific North American pattern and the El Niño - Southern Oscillation cycles (see Climate chapter) can also affect variation in snowpacOn shorter time scales, and layered on top of Pacific Decadal Oscillation variation, the Pacific North American pattern and the El Niño - Southern Oscillation cycles (see Climate chapter) can also affect variation in snowpacon top of Pacific Decadal Oscillation variation, the Pacific North American pattern and the El Niño - Southern Oscillation cycles (see Climate chapter) can also affect variation in snowpack.

The assessments in this chapter are based on the climate trends for which we had sufficient data and climate projections that represent plausible future scenarios, as described in the Climate chapter of this assessment (see Water chapter for snowpack trends and projections) and summarized in Table 4 - 1.

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

NASA airborne science instruments such as the JPL - managed Airborne Snow Observatory and the SnowEx field campaign in the western United States, which includes JPL participation, seek to better understand and better measure how much water is held in snow cover, a critical fact for this region where one in six people rely on snowpack for water.