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EXTRACTING THE WATERLINE FROM LANDSAT IMAGES

Thao Thi Phuong Pham 1, *
Duan Dinh Ho 2
To Van Dang 3
  1. Institute of Oceanography, Nha Trang City
  2. Vietnam Academy of Science and Technology
  3. University of Sciences, VNU-HCM
Correspondence to: Thao Thi Phuong Pham, Institute of Oceanography, Nha Trang City. Email: pvphuc@hcmuns.edu.vn.
Volume & Issue: Vol. 12 No. 12 (2009) | Page No.: 52-58 | DOI: 10.32508/stdj.v12i12.2319
Published: 2009-06-28

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Copyright The Author(s) 2023. This article is published with open access by Vietnam National University, Ho Chi Minh city, Vietnam. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0) which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited. 

Abstract

Remote sensing technology nowadays is one of the most useful tools for scientific research in general and for oceanography in particular. From satellite images, the useful information such as waterline images can be extracte for a large region simultaneously. After tidal adjustments, the waterlines can be used as the observed shorelines which are important inputs for estimating shoreline changes by either using the integration of remote sensing and GIS or using numerical models. Based on the spectral bands of various Landsat images, the paper presents the methods to detect the waterlines in Phan Thiet region in the 40 years period using the images of 1973, 1976, 1990, and 2002 respectively. The extracted results relatively agree with the information of waterline from the images.

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