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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Sang-Ho Baek Shum, C.K. |
| Copyright Year | 2011 |
| Description | Author affiliation: Depart. of Construction Eng. and Environmental Sciences, Korea Military Academy, Seoul, Korea (Sang-Ho Baek) || Division of Geodetic Science, School of Earth Sciences, Ohio State University, Columbus, OH, USA (Shum, C.K.) |
| Abstract | In this paper, ice shelf movements caused by ocean tides are measured by Interferometric synthetic aperture radar (InSAR) and an tidal constituent of an ice tongue in West Antarctica is estimated using ERS-1/2 tandem mission differential InSAR (DInSAR) observations. We assume that InSAR observed ocean tidal heights can be derived after correcting the InSAR data for the effect of atmospheric loading using the inverse barometric effect, solid earth tides, and ocean tide loading. Here, the dominant tidal constituent O1 underneath the Sulzberger ice shelf is estimated using 8 differential interferograms. The resulting tidal constituent is compared with a contemporary regional tide model (CATS2008a) and a global tide model (TPXO7.1). The InSAR estimated tidal amplitude agrees with both models with root-mean-square (RMS) differences of < 2.2 cm and the phase estimate corroborating both tide models to within 8˚. We conclude that fine spatial scale (∼200 m) Antarctic ice shelf ocean tide determination is feasible for dominant constituents using C-band ERS-1/2 tandem mission InSAR. |
| Starting Page | 1 |
| Ending Page | 4 |
| File Size | 113626 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781457713514 |
| e-ISBN | 9788993246179 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2011-09-26 |
| Publisher Place | Korea (South) |
| Access Restriction | Subscribed |
| Rights Holder | KIEES |
| Subject Keyword | Sea measurements Antarctica ice shelf Ocean tide determination Ice shelf InSAR Antarctica Mathematical model Tides |
| Content Type | Text |
| Resource Type | Article |
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