It appears to be the case that ice is melting from Greenland faster and faster with the passage of time.
A novel study regarding the Greenland Ice Sheet shows that climate change has very real effects on the terrain of Northern land masses. Via singular research methods, newer estimates of ice loss for modern and ancient times have been calculated.
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Over a dozen people carried out the investigation. The research was published in a journal. Ice loss, in the past and today, were estimated by digging deeper into the earth’s normal everyday activity. Most of this took place beneath the Greenland Ice Sheet.
This is just a preliminary albeit very important step into gaining greater savvy regarding geological processes taking place beneath the earth’s surface. Both ice loss and sea level rise are determined by what occurs beneath the surface of the earth.
A new understanding concerning the changing ice sheet and its interactions with the rocky strata beneath it is being gained via this focused analysis.
The ice sheet sits on the earth’s solid crust. This in turn lies on top of a softer strata of rock known as the mantle. When the ice loss occurs, the softer land mass below automatically rises.
This resembles the manner in which a compressed spring will show an uprising when the pressure is slackened. This upsurge is termed postglacial rebound.
Science is unable to exactly measure the ice sheet shrinkage by tracking changes in the surface elevation. The missing element is how much elevation is caused by the upswell of the bedrock.
This is something which needs to be known with accuracy. Information from a GPS station on the bedrock caught the uplift process in detail. This revised data shows that earlier attempts at measuring this tendency may have been way off the mark.
Furthermore, the mantle beneath Greenland is is not even. The ice sheet’s southest region has faced fast uplift amounting to 12 mm of rise per annum.
Thus the mantle may be more heated and show less viscosity here thereby making it springy in its consistency. It is on the whole a very exciting and exhilarating study. This study will yield new data that will probably surprise scientists and laymen alike.