Preliminary results of the ice_sheet_CCI round robin activity on the estimation of surface elevation changes

F. Ticconi, Joanna Fredenslund Levinsen, K. Khvorostovsky, René Forsberg, A. Shepherd

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review


    This work presents the first results of a research activity aiming to compare estimates of Surface Elevation Changes (SEC) over the Jakobshavn Isbræ basin (Greenland) using different repeat altimetry techniques and different sensors (laser vs. radar altimetry). The goal of this comparison is the identification of the best performing algorithm, in terms of accuracy, coverage and processing effort, for the generation of surface elevation change maps. The methods investigated here are the cross-over and repeat-track. The results of the inter-comparison are here reported and, from a first analysis, it is found that both radar and laser altimetry resolve the surface elevation changes quite well, and that the problems found mainly in the coastal region and along the main trunk can be solved by combining the two methods. The comparison with airborne lidar data from the NASA ICEBridge and the ESA CryoVex campaigns is in progress.
    Original languageEnglish
    Title of host publicationProceedings of IGARSS 2013
    Number of pages4
    Publication date2013
    ISBN (Print)978-1-4799-1114-1
    Publication statusPublished - 2013
    Event2013 IEEE International Geoscience and Remote Sensing Symposium - Melbourne, Australia
    Duration: 21 Jul 201326 Jul 2013


    Conference2013 IEEE International Geoscience and Remote Sensing Symposium
    Internet address
    SeriesIEEE International Geoscience and Remote Sensing Symposium Proceedings


    • glaciology
    • height measurement
    • hydrological techniques
    • optical radar
    • remote sensing by laser beam
    • remote sensing by radar
    • Fields, Waves and Electromagnetics
    • airborne lidar data
    • algorithm accuracy
    • algorithm coverage
    • algorithm processing effort
    • Altimetry
    • cross over method
    • ESA CryoVex campaign
    • glacier surface elevation changes
    • Greenland
    • Ice
    • Ice_Sheet_CCI round robin activity
    • Jakobshavn Isbrae basin
    • laser altimetry
    • Laser radar
    • NASA ICEBridge campaign
    • radar altimetry
    • repeat altimetry techniques
    • repeat track method
    • repeat-pass altimetry
    • SEC estimation
    • Sensors
    • Spaceborne radar
    • surface elevation change estimation
    • surface elevation change map generation
    • Surface topography


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