Estimation of the sedimentation budget in tidal flat using remotely sensed data

Joo Hyung Ryu, Won Jin Cho, Joong Sun Won

Research output: Contribution to conferencePaper

2 Citations (Scopus)

Abstract

The intertidal topography is continuously changed due to morphodynamics processes. The objectives of this study are: i) to generate an intertidal DEM using waterlines extracted from Landsat TM; ii) to estimate sediment budget and to analyze sediment pattern using generated DEMs 1991 and 2000. The band ratio of (TM4-TM3)/(TM4+TM3) is shown to be most effective. We tested the proposed method in the Gomso Bay, Korea, and successfully produced intertidal DEMs with 10.9 cm r.m.s. error. The sediment budget and pattern analysis were quantitatively estimated by differencing the two DEMs. A comparison of DEM'1991 with DEM'2000 deduced from 13 Landsat TM scenes shows sedimentation dominant in lower flat and a no significant changes in upper flat. The grain size of surface sediment may not directly be correlated with reflectivity. The results demonstrate that remote sensing is useful and valuable tool for the intertidal flat studies, and practically one and only possible way to provide reliable data of two-dimensional sediment budget and pattern.

Original languageEnglish
Pages2409-2411
Number of pages3
Publication statusPublished - 2001 Dec 1
Event2001 International Geoscience and Remote Sensing Symposium (IGARSS 2001) - Sydney, NSW, Australia
Duration: 2001 Jul 92001 Jul 13

Other

Other2001 International Geoscience and Remote Sensing Symposium (IGARSS 2001)
CountryAustralia
CitySydney, NSW
Period01/7/901/7/13

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All Science Journal Classification (ASJC) codes

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

Cite this

Ryu, J. H., Cho, W. J., & Won, J. S. (2001). Estimation of the sedimentation budget in tidal flat using remotely sensed data. 2409-2411. Paper presented at 2001 International Geoscience and Remote Sensing Symposium (IGARSS 2001), Sydney, NSW, Australia.