Images
November 26, 2017 - Iceberg A68A off the Larsen C ice shelf, Antarctica
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The mélange-filled gap between Iceberg A68A and the Larsen C ice shelf has been slowly widening since the iceberg calved in July, 2017. On November 4, 2017, the Moderate Resolution Imaging Spectroradiometer (MODIS) aboard the Terra satellite acquired a true-color image of Iceberg A68A off of the Larsen C ice shelf.
In 2016,scientists flying Operation IceBridge over the Larsen C shelf noted a widening crack along the edge of the shelf. This was also noted in satellite imagery. As the dark winter settled in, the crack widened and Iceberg A68 split from the ice shelf. Shortly afterwards, Iceberg A68 broke into two major pieces – A68A is the very large piece to the east of the shelf and A68B is the smaller piece to the northeast of the tip of A68A.
Operation IceBridge has returned to the site and acquired substantial data both from the icebergs and the Larsen C ice shelf. On November 23, NASA’s Earth Observatory published photographs of the Larsen C ice shelf taken from the mission’s aircraft as well as the Digital Mapping System (DMS) on board. Those images, acquired on November 12, can be seen here: https://earthobservatory.nasa.gov/IOTD/view.php?id=91313&eocn=image&eoci=moreiotd
Image Facts
Satellite:
Terra
Date Acquired: 11/4/2017
Resolutions:
250m ( B)
Bands Used: 1,4,3
Image Credit:
Jeff Schmaltz, MODIS Land Rapid Response Team, NASA GSFC
The mélange-filled gap between Iceberg A68A and the Larsen C ice shelf has been slowly widening since the iceberg calved in July, 2017. On November 4, 2017, the Moderate Resolution Imaging Spectroradiometer (MODIS) aboard the Terra satellite acquired a true-color image of Iceberg A68A off of the Larsen C ice shelf.
In 2016,scientists flying Operation IceBridge over the Larsen C shelf noted a widening crack along the edge of the shelf. This was also noted in satellite imagery. As the dark winter settled in, the crack widened and Iceberg A68 split from the ice shelf. Shortly afterwards, Iceberg A68 broke into two major pieces – A68A is the very large piece to the east of the shelf and A68B is the smaller piece to the northeast of the tip of A68A.
Operation IceBridge has returned to the site and acquired substantial data both from the icebergs and the Larsen C ice shelf. On November 23, NASA’s Earth Observatory published photographs of the Larsen C ice shelf taken from the mission’s aircraft as well as the Digital Mapping System (DMS) on board. Those images, acquired on November 12, can be seen here: https://earthobservatory.nasa.gov/IOTD/view.php?id=91313&eocn=image&eoci=moreiotd
Image Facts
Satellite:
Terra
Date Acquired: 11/4/2017
Resolutions:
250m ( B)
Bands Used: 1,4,3
Image Credit:
Jeff Schmaltz, MODIS Land Rapid Response Team, NASA GSFC
