Measurement of Sea Level by L-band SAR

Sang Wan Kim, Joong Sun Won

Research output: Contribution to conferencePaperpeer-review

1 Citation (Scopus)

Abstract

We present a method to measure tide height from L-band synthetic aperture radar (SAR) data. We have successfully constructed 17 coherent interferograms from JERS-1 SAR data over oyster sea-farming structures. The coherent phases preserved in the interferograms showed a close relation with sea level. The problem of phase unwrapping to restore an absolute tide height was overcome by introducing a normalized image intensity, which resolved the wrapped phase ambiguity in 15 out of 17 pairs. The radar measurements estimated by the proposed method were verified by using tide gauge data, and comparison of the two data sets yielded a correlation coefficient of 0.95 with an r.m.s. error of 5.76 cm. The results demonstrate that radar interferometry may be applied to the measurement of tide height near the coast.

Original languageEnglish
Pages2106-2108
Number of pages3
Publication statusPublished - 2003
Event2003 IGARSS: Learning From Earth's Shapes and Colours - Toulouse, France
Duration: 2003 Jul 212003 Jul 25

Other

Other2003 IGARSS: Learning From Earth's Shapes and Colours
CountryFrance
CityToulouse
Period03/7/2103/7/25

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Earth and Planetary Sciences(all)

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