Sentences with phrase «of rockfall»

When it thaws, the ground becomes less stable, erosion can start and the chance of rockfall increases.

Putting all these clues together, Evenson was able to pinpoint the source of the rockfall to one of three locations, the most likely of which was beside a tributary called the Parry Glacier, 200 kilometres from the boulders» present locations.

The possibility of picking up on similar early warnings has made the monitoring of rockfall patterns an important activity, but useful data is lost each time a fall goes unobserved.

California's Yosemite National Park is a hot spot of rockfalls.

Not exact matches

A rare rockfall immediately south of a scenic overlook in Palisades Interstate Park changed the face of the formation dramatically and closed a popular hiking trail indefinitely.

Dozens of such rockfalls occur every year, from Brazil to Japan, yet what causes many of them has remained a mystery.

Nevertheless, over time the fissure grows to the point at which the bulging on a hot summer day can fracture a slab free of its cliff, triggering a rockfall.

But pockets of pikas are bucking that trend by living stably in shady talus slopes, the accumulated rockfall debris at the base of mountains.

The scientists developed an algorithm to distinguish rockfalls from other sources of seismic noise, like rainstorms, avalanches, and earthquakes.

Fortunately, the area's roads and trails had been closed earlier, the park rangers forewarned by seeing a series of smaller rockfalls — and hearing loud cracking noises — coming from the cliff face.

Writing in Engineering Geology, the researchers report that the sensors were able to pinpoint small rockfalls (of less than 20 cubic meters) at distances of up to several hundred meters away — and identify not only individual impacts within falls, but also, in some cases, the signals generated as the rocks began to move.

In total, the team detected 12 rockfalls, with six being related and forming part of a larger, ongoing instability in the cliff face.

According to one eyewitness, watching Yosemite Valley's largest rockfall was like seeing a cliff «unfolding like the stairs of an escalator.»

Cracking driven by daily and seasonal temperature changes may help explain substantial fraction of sunny - day rockfalls

Mars scientists also revealed MGS images of a recent rockfall, in which many boulders broke free and rolled down a crater wall sometime between November 2003 and December 2004.

In heaves and hollows and scallops, crag above crag, upland beyond upland: in murky shouldering ridges, clotted with trees, tumbling with rockfalls, the flanks of Troll Fell rose before him.

Gusts of wind can come out of the blue in Iceland, there are often rockfalls and small earthquakes... I wouldn't recommend sitting on a ledge with meters of nothing underneath you.....

One rockfall model that I saw factored in neither the shape of the block nor the possibility of the block breaking for determining its path down a slope.

, lightning related insurance claims, Lyme disease, Malaria, malnutrition, Maple syrup shortage, marine diseases, marine food chain decimated, Meaching (end of the world), megacryometeors, Melanoma, methane burps, melting permafrost, migration, microbes to decompose soil carbon more rapidly, more bad air days, more research needed, mountains break up, mudslides, next ice age, Nile delta damaged, no effect in India, nuclear plants bloom, ocean acidification, outdoor hockey threatened, oyster diseases, ozone loss, ozone repair slowed, ozone rise, pests increase, plankton blooms, plankton loss, plant viruses, polar tours scrapped, psychosocial disturbances, railroad tracks deformed, rainfall increase, rainfall reduction, refugees, release of ancient frozen viruses, resorts disappear, rift on Capitol Hill, rivers raised, rivers dry up, rockfalls, rocky peaks crack apart, Ross river disease, salinity reduction, Salmonella, sea level rise, sex change, ski resorts threatened, smog, snowfall increase, snowfall reduction, societal collapse, songbirds change eating habits, sour grapes, spiders invade Scotland, squid population explosion, spectacular orchids, tectonic plate movement, ticks move northward (Sweden), tides rise, tree beetle attacks, tree foliage increase (UK), tree growth slowed, trees less colourful, trees more colourful, tropics expansion, tsunamis, Venice flooded, volcanic eruptions, walrus pups orphaned, wars over water, water bills double, water supply unreliability, water scarcity (20 % of increase), weeds, West Nile fever, whales move north, wheat yields crushed in Australia, white Christmas dream ends, wildfires, wine — harm to Australian industry, wine industry damage (California), wine industry disaster (US), wine — more English, wine — no more French, wind shift, winters in Britain colder, wolves eat more moose, wolves eat less, workers laid off, World bankruptcy, World in crisis, Yellow fever.