Sentences with phrase «by glaciers occur»

Massive phytoplankton (algae) blooms and suspended mineral particles released by glaciers occur during the Arctic spring and summer.

Not exact matches

They used a dating technique perfected in the last 20 years that measures elemental changes in the rock that occur when the rock gets bombarded by cosmic rays after the glacier's retreat.

Instead, the main source of the clamor occurs when bubbles disengage from the melting glacier and suddenly spring back into their original spherical shapes after thousands of years of being squeezed by the ice.

In a telephone interview from India, where she was about to visit some Himalayan glaciers, Dr. Koppes noted that the highest rates of erosion by rivers and glaciers occur in areas of tectonic uplift — where the land is still rising.

Whether we look at the steady increase in global temperature; the buildup of greenhouse gases in the atmosphere to the highest level in a half - million years; the march of warmest - ever years (9 of the10 hottest on record have occurred since 2000); the dramatic shrinking of mountain glaciers and Arctic sea ice; the accelerating rise in sea level; or the acidification of our oceans; the tale told by the evidence is consistent and it is compelling.

The glaciers» most rapid 20th century retreat occurred between 1920 and 1950, followed by an advance in the 1970s and then a renewed retreat in 1998.7,8,9 [emphasis added]

Their projections show a reduction of about 70 % in glacier volume by the year 2100 compared to 2005, with the largest losses occurring around 2020 to 2040.

An equilibrium response occurs when a new equilibrium is reached by a retreating glacier losing enough of its high ablating sections, usually at its lowest elevations, so that accumulation once again balances ablation.

Of course, scarring could occur by any accumuluation of ice and snow — not just glacier - sized.

Glaciergate occurred because India's scientific authorities on Himalayan glaciers told their government that the IPCC assertion of complete loss of the glaciers by 2035 was impossible — a fact that all glaciologists knew — but the IPCC Chairman (Rajendra Pechauri) replied that this fact was «voodoo science».

May be you mean that strip bark is basically caused by extreme snow conditions and glacier advances occur during such times?

Contrary to the aforementioned report, a recent study by Gardelle and others (2012) reveals that high rates of ice loss can occur on debris - covered glacier tongues (12).

The limited resolution of GRACE affects the uncertainty of total mass loss to a smaller degree; we illustrate the «real» sources of mass changes by including satellite altimetry elevation change results in a joint inversion with GRACE, showing that mass change occurs primarily associated with major outlet glaciers, as well as a narrow coastal band.