Spaceborne radar interferometry for coastal DEM construction

S. H. Hong, C. W. Lee, J. S. Won, O. I. Kwoun, Z. Lu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Topographic features in coastal regions including tidal flats change more significantly than landmass, and are characterized by extremely low slopes. High precision DEMs are required to monitor dynamic changes in coastal topography. It is difficult to obtain coherent interferometric SAR pairs especially over tidal flats mainly because of variation of tidal conditions. Here we focus on i) coherence of multi-pass ERS SAR interferometric pairs and ii) DEM construction from ERS-ENVISAT pairs. Coherences of multi-pass ERS interferograms were good enough to construct DEM under favorable tidal conditions. Coherence in sand dominant area was generally higher than that in muddy surface. The coarse grained coastal areas are favorable for multi-pass interferometry. Utilization of ERS-ENVISAT interferometric pairs is taken a growing interest. We carried out investigation using a cross-interferometric pair with a normal baseline of about 1.3 km, a 30 minutes temporal separation and the height sensitivity of about 6 meters. Preliminary results of ERS-ENVISAT interferometry were not successful due to baseline and unfavorable scattering conditions.

Original languageEnglish
Title of host publication25th Anniversary IGARSS 2005
Subtitle of host publicationIEEE International Geoscience and Remote Sensing Symposium
Pages4806-4808
Number of pages3
Volume7
DOIs
Publication statusPublished - 2005 Dec 1
Event2005 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2005 - Seoul, Korea, Republic of
Duration: 2005 Jul 252005 Jul 29

Other

Other2005 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2005
CountryKorea, Republic of
CitySeoul
Period05/7/2505/7/29

Fingerprint

radar interferometry
Interferometry
digital elevation model
tidal flat
interferometry
synthetic aperture radar
Topography
Sand
Scattering
scattering
ERS
Space-based radar
topography
sand

All Science Journal Classification (ASJC) codes

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

Cite this

Hong, S. H., Lee, C. W., Won, J. S., Kwoun, O. I., & Lu, Z. (2005). Spaceborne radar interferometry for coastal DEM construction. In 25th Anniversary IGARSS 2005: IEEE International Geoscience and Remote Sensing Symposium (Vol. 7, pp. 4806-4808). [1526748] https://doi.org/10.1109/IGARSS.2005.1526748
Hong, S. H. ; Lee, C. W. ; Won, J. S. ; Kwoun, O. I. ; Lu, Z. / Spaceborne radar interferometry for coastal DEM construction. 25th Anniversary IGARSS 2005: IEEE International Geoscience and Remote Sensing Symposium. Vol. 7 2005. pp. 4806-4808
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Hong, SH, Lee, CW, Won, JS, Kwoun, OI & Lu, Z 2005, Spaceborne radar interferometry for coastal DEM construction. in 25th Anniversary IGARSS 2005: IEEE International Geoscience and Remote Sensing Symposium. vol. 7, 1526748, pp. 4806-4808, 2005 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2005, Seoul, Korea, Republic of, 05/7/25. https://doi.org/10.1109/IGARSS.2005.1526748

Spaceborne radar interferometry for coastal DEM construction. / Hong, S. H.; Lee, C. W.; Won, J. S.; Kwoun, O. I.; Lu, Z.

25th Anniversary IGARSS 2005: IEEE International Geoscience and Remote Sensing Symposium. Vol. 7 2005. p. 4806-4808 1526748.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Hong SH, Lee CW, Won JS, Kwoun OI, Lu Z. Spaceborne radar interferometry for coastal DEM construction. In 25th Anniversary IGARSS 2005: IEEE International Geoscience and Remote Sensing Symposium. Vol. 7. 2005. p. 4806-4808. 1526748 https://doi.org/10.1109/IGARSS.2005.1526748