Detecting shoreline changes in Chabahar Bay by processing satellite images

Abstract

Abstract. Monitoring coastal areas is an important parameter in the sustainable development and protection of the environment. The expansion of constructions in Iran's southern coasts has not only led to the destruction of geomorphological landforms, but has also changed the process of erosion and sedimentation in coastal areas. Nowadays, remote sensing data are considered as the most e cient source of information for the study and interpretation of coastal landforms, tidal levels, changes in coastline, depth of water, and so forth. The purpose of this study is to investigate the changes in the coastline of Chabahar Gulf, located on the coasts of the Oman Sea by using remote sensing techniques. This study examined and interpreted qualitative and quantitative changes of the coastlines in a forty-two-year period. Di erent supervised classi cation methods were used from which the most accurate one was ultimately chosen. The classi ed images were divided into two classes of land and water, and the changes of these two classes between 1972 and 2014 were extracted. The net change results indicate that in the forty-two-year period, 1,832,436 m 2 of the land has been added to water class, and 7,004,844 m 2 of water has been added to land.

Spatiotemporal Analysis of Water Body in the Chongming Island Region over the Past Decade Based on the ISUNet Model

“…Researchers have conducted numerous studies using machine learning methods to extract information on water bodies. For example, Zeinali et al [20] studied coastline changes in Chabahar Bay from 1972 to 2014 using the maximum likelihood classification method to extract water bodies from remote sensing images. Possa et al [21] utilized an SVM classifier with a 95% probability threshold to separate water from land in small reservoirs and estimated partial water areas using probabilistic maps.…”

Mathematical Model of Coastline Changes in the Ujung Pangkah Gresik Using the Polynomial Lagrange Approach

“…Both manually and by using satellite imagery, the satellite imagery technology will provide more efficient and accurate results [2][3][4]. This is due to the ability of multi-temporal satellite imagery and has an excellent spatial recording process compared to making direct measurements in the field per measurement point, which takes a very long time and cannot avoid measurement errors due to observations from humans who have limited time and energy [3,5,6].…”

Sustainable Use of Geomorphological Forms in Tourism, the Case of Half Moon Bay, Eastern Region, Kingdom of Saudi Arabia

“…Coastal geomorphology which encompasses a wide range of phenomena such as storm waves, tsunamis and sea-level variations, has gained considerable attention especially with respect to alarming issues such as global climate change and human interventions. Coastlines are important natural phenomena that are highly dynamic in nature (Zeinali et al, 2017). Headlands are trimmed and sand barriers are built due to actions of waves and currents creating simple and straight coastlines (Davidson-Arnott, 2009).…”