[Home ] [Archive]   [ فارسی ]  
:: Main :: About :: Current Issue :: Archive :: Search :: Submit :: Contact ::
:: Volume 22, Issue 79 (12-2022) ::
جغرافیایی 2022, 22(79): 67-86 Back to browse issues page
Coastal areas bathymetry based on new hybrid methods and fusion methods of Sentinel-2 and Landsat 8 satellite images
Kazem Rangzan *1, Mostafa Kabolizadeh2, Danya Karimi2
1- Department of Remote Sensing and GIS, Faculty of Earth Sciences, Ahvaz Shahid Chamran University, Ahvaz, Iran. (Author).
2- Department of Remote Sensing and GIS, Faculty of Earth Sciences, Ahvaz Shahid Chamran University, Ahvaz, Iran.
Abstract:   (463 Views)
The purpose of this study is to use modern methods to improve the accuracy of depth measurement, first by using the proposed methods based on image fusion of sentinel-2 and Landsat 8 images and then based on hybrid fusion methods. Thus, depth measurements were performed in two studied areas, namely Chabahar Bay and Mousa Estuary, based on different scenarios. These scenarios include the traditional ratio method, the proposed methods based on image fusion using three methods of Intensity-Hue-Saturation, Gram-Schmidt transformation, and Brovey transformation, and the proposed methods based on hybrid image fusion. In order to perform depth measurement based on the proposed hybrid fusion methods, the output of the image transformation using the principal component analysis method was merged with the input image of the best bathymetry map based on image fusion at another level of fusion. Chabahar Bay depth measurement results showed that in comparison with the traditional ratio model, the proposed models based on Brovey and Gram-Schmidt methods and based on a hybrid method resulting from the integration of principal component analysis output and Gram-Schmidt method have the best depth measurement results. Regarding the depth measurement of Mousa estuary, the proposed depth measurement method based on the combination of principal component analysis and Intensity-Hue-Saturation method has created the best result in comparison with the traditional ratio model. Also, the results showed that the appropriateness of the number and distribution of depth field points with the topography of the area has a great effect on the accuracy of depth measurement.
Keywords: Bathymetry, The traditional ratio method, Image fusion, Sentinel-2, Landsat 8, Chabahar Bay, Mousa Estuary
Full-Text [PDF 2192 kb]   (11 Downloads)    
Type of Study: Research | Subject: Special
Received: 2020/08/28 | Accepted: 2021/02/16 | Published: 2022/12/1
Send email to the article author

Add your comments about this article
Your username or Email:

CAPTCHA


XML   Persian Abstract   Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Rangzan K, Kabolizadeh M, Karimi D. Coastal areas bathymetry based on new hybrid methods and fusion methods of Sentinel-2 and Landsat 8 satellite images. جغرافیایی. 2022; 22 (79) :67-86
URL: http://geographical-space.iau-ahar.ac.ir/article-1-3720-en.html


Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Volume 22, Issue 79 (12-2022) Back to browse issues page
فضای جغرافیایی Geographic Space
Persian site map - English site map - Created in 0.18 seconds with 30 queries by YEKTAWEB 4461