Study of the fronts of Johnsons and Hurd Glaciers (Livingston Island, Antarctica) from 1957 to 2013, with links to shapefiles

The study of glacier fronts combines different geomatics measurement techniques as the classic survey using total station or theodolite, technical GNSS (Global Navigation Satellite System), using laser-scanner or using photogrammetry (air or ground). The measure by direct methods (classical surveyin...

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Bibliographic Details
Main Authors: Rodríguez Cielos, Ricardo, Navarro Valero, Francisco
Format: Dataset
Language:English
Published: PANGAEA 2015
Subjects:
Argentina_Glacier
Event label
File content
Johnson_Glacier
Las_Palmas_Glacier
Latitude of event
Longitude of event
Sally_Rocks
Uniform resource locator/link to file
Argentina
Livingston Island
Hurd
Las Palmas
Johnsons
Johnsons Glacier
Sally Rocks
Antarc*
Antarctica
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.845379
https://doi.org/10.1594/PANGAEA.845379
Description
Summary:The study of glacier fronts combines different geomatics measurement techniques as the classic survey using total station or theodolite, technical GNSS (Global Navigation Satellite System), using laser-scanner or using photogrammetry (air or ground). The measure by direct methods (classical surveying and GNSS) is useful and fast when accessibility to the glaciers fronts is easy, while it is practically impossible to realize, in the case of glacier fronts that end up in the sea (tide water glaciers). In this paper, a methodology that combines photogrammetric methods and other techniques for lifting the front of the glacier Johnsons, inaccessible is studied. The images obtained from the front, come from a non-metric digital camera; its georeferencing to a global coordinate system is performed by measuring points GNSS support in accessible areas of the glacier front side and applying methods of direct intersection in inaccessible points of the front, taking measurements with theodolite. The result of observations obtained were applied to study the temporal evolution (1957-2014) of the position of the Johnsons glacier front and the position of the Argentina, Las Palmas and Sally Rocks lobes front (Hurd glacier).

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