Remotely-sensed glacier change estimation: a case study at Linblad Cove, Antarctic Peninsula

Fieber, K.D.; Mills, J.P.; Miller, P.E.; Fox, A.J. ORCID: 2016 Remotely-sensed glacier change estimation: a case study at Linblad Cove, Antarctic Peninsula. In: ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Volume III-8, 2016. Prague, International Society for Photogrammetry and Remote Sensing, 71-78.

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This study builds on existing literature of glacier change estimation in polar regions and is a continuation of efforts aimed at unlocking the information encapsulated in archival aerial photography of Antarctic Peninsula glaciers. Historical aerial imagery acquired in 1957 over three marine-terminating glaciers at Lindblad Cove on the West Coast of Trinity Peninsula is processed to extract digital elevation models (DEMs) which are subsequently compared to DEMs generated from present day (2014) WorldView-2 satellite stereo-imagery. The new WorldView-2 images offer unprecedented sub-metre resolution of the Antarctic Peninsula and are explored here to facilitate improved registration and higher accuracy analysis of glacier changes. Unlike many studies, which focus on glacier fronts or only restricted regions of glaciers, this paper presents a complete coverage of elevation changes across the glacier surfaces for two of the studied glaciers. The study utilises a robust least squares matching technique to ensure precise registration of the archival and modern DEMs, which is applied due to lack of existing ground control in this remote region. This case study reveals that, while many glaciers in polar regions are reported as experiencing significant mass loss, some glaciers are stable or even demonstrate mass gain. All three glaciers reported here demonstrated overall mean increases in surface elevation, indicative of positive mass balance ranging from 0.6 to 5.8 metre water equivalent between 1957 and 2014.

Item Type: Publication - Book Section
Digital Object Identifier (DOI):, 2016
Programmes: BAS Programmes > BAS Corporate
Additional Keywords: glacier change, Antarctic Peninsula, photogrammetry, WorldView-2, archival photography, DEM, surface matching
Date made live: 19 Jul 2016 10:02 +0 (UTC)

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