Surface ice flow velocity and tide retrieval of the amery ice shelf using precise point positioning

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Five days of continuous GPS observation data were collected in the frontal zone of the Amery ice shelf and subsequently post-processed using precise point position (PPP) technology based on precise orbit and clock products from the International GNSS service. The surface ice flow velocity of the observed point was derived from PPP to be 2.25 m/day toward the northeast with an azimuth of 41 degrees. Major semi-diurnal and diurnal oceanic tide constituents could be recovered from the 5 days of PPP-derived height variations and compared well with a hydrodynamic ocean tide model. The PPP technique can replace double-difference GPS positioning in remote or hostile environments, and be used to retrieve the surface ice flow velocity without any reference station. Furthermore, the solution can be derived epoch-by-epoch with accuracy in the centimeters to decimeter range.
Original languageEnglish
JournalJournal of Geodesy
Volume80
Issue number4
Pages (from-to)171-176
ISSN0949-7714
Publication statusPublished - 2006

Keywords

  • precise point positioning
  • surface ice flow
  • ocean tides
  • Amery ice shelf

Fingerprint Dive into the research topics of 'Surface ice flow velocity and tide retrieval of the amery ice shelf using precise point positioning'. Together they form a unique fingerprint.

Cite this