July 21, 2013

Taisija Glacier Retreat, Novaya Zemlya

Posted by Mauri Pelto

Taisija is an outlet glacier that drains the northern side of the Novaya Zemlya Ice Cap into the Barents Sea. This outlet glacier is just southwest of Chernysheva Glacier, and like that glacier has retreated from an island since 1988. The glacier has been retreating like all tidewater glaciers in northern Novaya Zemlya (LEGOS, 2006) taisij ge Google Earth Image

Here we examine the glacier using Landsat imagery from 1988-2013. In 1988 the glacier terminus was grounded on an island near the center of the glacier, yellow arrow. The western margin purple arrow is near the tip of a peninsula. On the east side an embayment exists in 1988 and the terminus is on a small island, red arrow. The green arrow indicates a glacier dammed lake that is full in 1988 on the neigboring glacier Kraynij Glacier. By 2006 the glacier center is still grounded on the island. An embayment has formed on the west side of the glacier and it has retreated from the peninsula. On the east side the glacier has retereated from the island, though this embayment has some sea ice in it that makes the retreat less evident. The glacier dammed lake is partially filled. By 2011 the glacier in the center has retreated from the island. The embayments on the east and the west have both expanded. The glacier dammed lake is empty. In June 2013 a Landsat 8 image provides a clearer perspective, the eastern embayment still has sea ice, but has pulled well back from the thin island at the red arrow. The retreat of this glacier is 1 kilometer on the west, 1.2 km in the center and 1.5 km on the west since 1988. This retreat is similar to that of Chernysheva, Krivosheina, Roze and Sredniy
taisij 19881988 Landsat image

taisij 20062006 Landsat image

taisij 2011
2011 Landsat image
taisij 2013
2013 Landsat 8 image