Sentences with phrase «of glaciers»

But because climate change is real and there has been some intensely rapid melting of the glacier in the past decade, it's nearly impossible to get on the glacier without a helicopter.

The discovery is significant because it is thought that such lakes may have accelerated the retreat of glaciers in the past, and could do so again.

I think a greater harm will be the melting of glaciers on which vast populations depend for agricultural irrigation, hydro - power, and drinking water.

Climate change is causing significant mass loss of glaciers in high mountains worldwide.

In theory, if a large mass of glaciers or ice sheets melted, this could cause a global sea level rise.

The coastline itself — the edge of the glacier ice — appears as a faint white line.

The reason being that hotter summers may actually slow down the flow of glaciers, according to researchers.

Surface melt water can pond on the surface of the glacier forming large lakes that can drain within hours.

Therefore, the researchers looked at the different rates of glacier melt, according to scenarios of how quickly CO2 emissions are reduced over the course of this century.

Instead, it is a distinct layer deposited onto the surface of the rock at the base of the glacier.

Added to that is the melt of glaciers around the globe.

They used a combination of field observations and data from local weather stations to test a model of glacier change over the past 50 years.

Upon arriving, the researchers spotted a lake on top of a glacier a bad sign for the ice.

The mass balance of glaciers is mainly influenced by winter precipitation and summer temperature.

Ice shelves (the floating front edges of glaciers that extend tens to hundreds of miles offshore) melt more because of contact with ocean water below them than they do because of sunlight.

This exposed tall ice «cliffs» at their margin with an unstable height, and resulted in rapid retreat of the glaciers from marine ice cliff instability between 12,000 and 11,000 years ago.

Finally I told everyone that today was the day, and it just so happened to coincide with us being in front of a glacier.

They found that the thick, wide parts of glaciers lose ice more easily than the thin, steep portions.

In the middle emissions scenario, over 90 percent of glaciers cross that point by the end of the century.

The formation, size and movement of glaciers can provide valuable data, he said, because these characteristics reflect current and historic changes in temperature, precipitation or both.

This gives rise to a stability criterion that depends only on the rate of change of sea bed depth along the length of the glacier.

One study in 2011 using aerial photographs concluded that many of the glaciers in Wind River lost on average 38 percent of their surface area over the latter half of the 20th century.

They then compared accumulation of ice in these cylinders to the expansion and retreat of the glacier over the past millennium.

A full explanation will require numerical modeling of glacier flow, but observations to date suggest that ice shelves act as «braking» systems on the glaciers behind them.

We certainly were not looking to make predictions, but I am surprised by the amount of acceleration of this glacier in the last 5 years.

Today is filled with breathtaking views of glaciers and offers great wildlife watching opportunities for all manner of marine life.

They worked with satellite images and measurements of the glaciers along with local weather data to understand what happened over the last few decades.

Data indicate broad regional continuity in response of these glaciers to climate.

However, mass balance observations are needed for estimating the contribution of glacier melt to sea level rise, so are discussed further in Chapter 11.

Note that even the 2007 number of glacier expansion has risen relative to 2006 data.

Where the face of a glacier meets the ocean, warm water can melt it from underneath, gradually forcing back the «grounding line» where the glacier sits on the land.

Are we running out of glacier and not yet into ice sheet?

Historical records of glacier length can be used as a proxy for temperature.

The sheer size of the glacier caused the total required measurements to be similar to achieve reasonable accuracy.

However, the recent studies of some of the Himalayan glaciers indicate that the rate of recession of most of the glaciers in general is on decline.

But for scientists concerned about the impact of glacier melt, it is important to know whether these recent losses are due to natural variability, or to man - made climate change.

This indicates that at least a portion of the glacier is healthy.

Best of all, all these flavours are packed together, so you can be in the jungle in the morning and at the foot of a glacier by the evening.

With more than twenty years of glaciers from ten different glaciers we have tested a forecasting tool for glacier mass balance.

By mapping these, and using the dating information, the team was able to identify the maximum historical extent of the glaciers.

They include increases in surface, atmospheric and oceanic temperatures; shrinking of glaciers; decreasing snow cover and sea ice; rising sea level and increasing atmospheric water vapour.