Articles | Volume 8, issue 2
Earth Syst. Sci. Data, 8, 341–353, 2016
Earth Syst. Sci. Data, 8, 341–353, 2016

Review article 18 Aug 2016

Review article | 18 Aug 2016

Geomatic methods applied to the study of the front position changes of Johnsons and Hurd Glaciers, Livingston Island, Antarctica, between 1957 and 2013

Ricardo Rodríguez Cielos1, Julián Aguirre de Mata2, Andrés Díez Galilea2, Marina Álvarez Alonso3, Pedro Rodríguez Cielos4, and Francisco Navarro Valero5 Ricardo Rodríguez Cielos et al.
  • 1Departamento de Señales, Sistemas y Radiocomunicaciones, ETSI de Telecomunicación, Universidad Politécnica de Madrid, Madrid, Spain
  • 2Departamento de Ingeniería Topográfica y Cartografía, ETSI en Topografía, Geodesia y Cartografía, Universidad Politécnica de Madrid, Madrid, Spain
  • 3Departamento de Lenguajes y Sistemas Informáticos e Ingeniería de Software, ETS de Ingenieros Informáticos, Universidad Politécnica de Madrid, Madrid, Spain
  • 4Departamento de Matemática Aplicada, ETSI de Telecomunicación, Universidad de Málaga, Málaga, Spain
  • 5Departamento de Matemática Aplicada a las Tecnologías de la Información y las Comunicaciones, ETSI de Telecomunicación, Universidad Politécnica de Madrid, Madrid, Spain

Abstract. Various geomatic measurement techniques can be efficiently combined for surveying glacier fronts. Aerial photographs and satellite images can be used to determine the position of the glacier terminus. If the glacier front is easily accessible, the classic surveys using theodolite or total station, GNSS (Global Navigation Satellite System) techniques, laser-scanner or close-range photogrammetry are possible. When the accessibility to the glacier front is difficult or impossible, close-range photogrammetry proves to be useful, inexpensive and fast. In this paper, a methodology combining photogrammetric methods and other techniques is applied to determine the calving front position of Johnsons Glacier. Images taken in 2013 with an inexpensive nonmetric digital camera are georeferenced to a global coordinate system by measuring, using GNSS techniques, support points in accessible areas close to the glacier front, from which control points in inaccessible points on the glacier surface near its calving front are determined with theodolite using the direct intersection method. The front position changes of Johnsons Glacier during the period 1957–2013, as well as those of the land-terminating fronts of Argentina, Las Palmas and Sally Rocks lobes of Hurd glacier, are determined from different geomatic techniques such as surface-based GNSS measurements, aerial photogrammetry and satellite optical imagery. This provides a set of frontal positions useful, e.g., for glacier dynamics modeling and mass balance studies.

Link to the data repository:

Short summary
The study of glacier fronts combines different geomatics measurement techniques. It is practically impossible to realize, in the case of glacier fronts that end up in the sea (tide water glaciers). The images obtained from the front come from a non-metric digital camera. The result of observations obtained were applied to study the temporal evolution (1957–2014) of the position of the Johnsons glacier and the position of the Hurd glacier, near BAE Juan Carlos I in Livingston Island (Antarctica).