NASA FILM ON GLACIER MELTING AND 1965 FILM OF GLACIER MELTING BILL KEEFER VIDEO PRODUCTION

NASA FILM ON GLACIER MELTING AND 1965 FILM OF GLACIER MELTING BILL KEEFER VIDEO PRODUCTION <br /> <br />Beginning from a view of Greenland's Jakobshavn glacier, this animation shows motion of sea ice and snow cover over the Arctic from 10/1/2002 through 6/23/2003 as the camera pulls out to frame the full globe. The false color of the sea ice is derived from the AMSR-E 6.25 km brightness temperature. The sea ice extent is defined by AMSR-E 12.5 km sea ice concentration, identifying all regions having a sea ice concentration of greater than 15%. Because AMSR-E is a passive microwave sensor that functions independently from atmospheric effects, this sensor is able to observe the entire polar region every day, even through clouds and snowfalls. Note: This animation moves from a view of the Jakobshavn glacier in Greenland to a full global view, showing seasonal changes in Arctic sea ice and global snow cover. <br /> <br />Jakobshavn Isbrae holds the record as Greenland's fastest moving glacier and major contributor to the mass balance of the continental ice sheet. Starting in late 2000, following a period of slowing down in the mid 1990s, the glacier showed significant acceleration and nearly doubled its discharge of ice.