Earth Snapshot RSS Feed Twitter
 
 
 
 

Posts tagged Ice Sheet

Southwestern Coast of Greenland in Summer

September 11th, 2009 Category: Snapshots

Greenland - July 28th, 2009

Greenland - July 28th, 2009

The coastline of Greenland visible here stretches from Disko Island, or Qeqertarsuaq, at the top left,  to the town of Paamiut towards the lower right.

Many fjords are visible along this part of the country’s western coastline, appearing various shades of turquoise and tan. Further inland, the terrain is covered by the central ice sheet and white snow.

In this image, the coastal areas are mostly free of snow due to the higher summer temperatures. Please click here to see an image of the same area taken in spring, with the coast blanketed by snow.

Glaciers and Ice Streams in Antarctica – December 19th, 2008

December 19th, 2008 Category: Image of the day

Glaciers in Antartica - December 13th, 2008

Glaciers in Antartica - December 13th, 2008

Close-up of two glaciers

Close-up of two glaciers

This ASAR (radar) image gives a fine view of the contours of two glaciers and an ice sheet in Antartica.

A glacier is a large, slow-moving mass of ice, formed from compacted layers of snow, that slowly deforms and flows in response to gravity and high pressure.

Both glaciers in the image appear bright white as much light reflects off their icy slopes. The darker grey lines show the movement of the melting ice.

Upon opening the second close-up image, ice streams appear as lines in an ice shelf or ice sheet. An ice stream is a region of an ice sheet that moves significantly faster than the surrounding ice.

Close-up of ice sheet

Close-up of ice sheet

Ice streams are significant features of the Antarctic where they account for 10% of the volume of the ice. They are up to 50 km wide and 2 km thick. They stretch for hundreds of kilometres and account for most of the ice leaving the ice sheet and entering the ice shelf.

source Wikipedia

About Us

Earth Observation

Organisations

Archive

November 2019
M T W T F S S
« Mar    
 123
45678910
11121314151617
18192021222324
252627282930  

Categories


Bulletin Board


Featured Posts

Information

46


Take Action

Widgets