Development of a detailed bathymetry map of the Nhat Le estuary, Quang Binh province by remote sensing image treatment

Le Thi Huong, Le Thi Hong Van, Nguyen Thi Viet Lien, Trinh Thi Thu Thuy, Le Nhu Nga, Dang Song Ha
Author affiliations

Authors

  • Le Thi Huong Institute of Mechanics, VAST, 18 Hoang Quoc Viet, Hanoi, Vietnam
  • Le Thi Hong Van Institute of Mechanics, VAST, 18 Hoang Quoc Viet, Hanoi, Vietnam
  • Nguyen Thi Viet Lien Institute of Mechanics, VAST, 18 Hoang Quoc Viet, Hanoi, Vietnam
  • Trinh Thi Thu Thuy Institute of Mechanics, VAST, 18 Hoang Quoc Viet, Hanoi, Vietnam
  • Le Nhu Nga Institute of Mechanics, VAST, 18 Hoang Quoc Viet, Hanoi, Vietnam https://orcid.org/0000-0001-5845-5233
  • Dang Song Ha Institute of Mechanics, VAST, 18 Hoang Quoc Viet, Hanoi, Vietnam

DOI:

https://doi.org/10.15625/0866-7136/20660

Keywords:

bathymetry, mapping, satellite image, reflectance spectrum, Landsat 8 OLI image, Nhat Le Estuary

Abstract

Multispectral remote sensing images with the advantages of low cost, wide area coverage, and increased resolution have been widely used recently for determining the bathymetry of coastal waters. In this study, the correlation equation is developed based on the Landsat 8 OLI satellite images captured on September 22, 2022, and the survey data measured during the time period of September 12–22, 2022, was used for mapping bathymetry in the Nhat Le Estuary area, Quang Binh Province, a relatively clear area from sediment. The correlation between the image and the field survey data is quite good, with R2 = 0.88. This shows that Landsat 8 OLI data is suitable for mapping sea areas with depths up to 20 m.

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Published

04-09-2024

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