Surface velocity fields, digital elevation models and ice front positions derived from multi-mission SAR remote sensing data at Sjögren Inlet glaciers, Antarctic Peninsula ...

• Main Authors: Seehaus, Thorsten, Marinsek, Sebastián, Skvarca, Pedro, van Wessem, Jan Melchior, Tijm-Reijmer, Carleen H, Seco, José, Braun, Matthias Holger
• Format: Dataset
• Language: English
• Published: PANGAEA 2016
• Subjects: Multiple investigations; Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158; Antarc*; Antarctic; Antarctic Peninsula; Ice Shelf; Ice Shelves; Prince Gustav Ice Shelf; Sea ice
• Online Access: https://dx.doi.org/10.1594/pangaea.859255; https://doi.pangaea.de/10.1594/PANGAEA.859255

Substantial retreat or disintegration of numerous ice shelves have been observed on the Antarctic Peninsula. The ice shelf in the Prince Gustav Channel retreated gradually since the late 1980's and broke-up in 1995. Tributary glaciers reacted with speed-up, surface lowering and increased ice discharge, consequently contributing to sea level rise. We present a detailed long-term study (1993-2014) on the dynamic response of Sjögren Inlet glaciers to the disintegration of Prince Gustav Ice Shelf. We analyzed various remote sensing datasets to observe the reactions of the glaciers to the loss of the buttressing ice shelf. A strong increase in ice surface velocities was observed with maximum flow speeds reaching 2.82±0.48 m/d in 2007 and 1.50±0.32 m/d in 2004 at Sjögren and Boydell glaciers respectively. Subsequently, the flow velocities decelerated, however in late 2014, we still measured about two times the values of our first measurements in 1996. The tributary glaciers retreated 61.7±3.1 km² behind the former ... : Supplement to: Seehaus, Thorsten; Marinsek, Sebastián; Skvarca, Pedro; van Wessem, Jan Melchior; Tijm-Reijmer, Carleen H; Seco, José; Braun, Matthias Holger (2016): Dynamic response of Sjögren Inlet glaciers, Antarctic Peninsula, to ice shelf breakup derived from multi-mission remote sensing time series. Frontiers in Earth Science Section; Section: Cryospheric Sciences, 4(66), 1-13 ...